Grain-preferred orientation significantly influences the brittle fracture mechanism and failure mode of crystalline rocks. However, current grain-based models (GBMs) based on particle flow code (PFC) software are mostly proposed on the basis of the Voronoi tessellation method for grain boundary generation, which is difficult to simulate the heterogeneity of microstructure such as shape and orientation of rock minerals. To study the effect of grain-preferred orientation on macroscopic mechanical properties and microscopic characteristics of crystalline rocks, a novel grain-based microstructure transformation method (MTM) is proposed. Based on the MTM, a GBM with a target aspect ratio and crystal orientation is obtained by transforming the Voronoi crystal geometry through a planar coordinate mapping. Specifically, embedded FISH language is used to control random mineral seed size and distribution pattern to generate Tyson polygons. A polygon geometry that satisfies the rock texture is obtained as a grain boundary by spatially transforming the vertex of the Tyson polygon. The transformed complex geometry is taken as the crystal structure of the GBM, and the Lac du Bonnet granite models with different aspect ratios and crystal orientations were developed in PFC2D. Finally, a series of unconfined compressive strength tests are performed in PFC2D to verify the proposed modeling methods for the geometric variation of the crystals and to study the effects of the preferred orientation of the grains on the macroscopic mechanical properties and microscopic fracture mechanisms of the crystalline rocks from different perspectives.
晶粒优选取向对晶质岩石的脆性断裂机理和破坏模式有重要影响。然而，目前基于粒子流代码（PFC）软件的晶粒模型（GBM）大多是基于Voronoi细分法生成晶界而提出的，难以模拟岩石矿物的形状和取向等微观结构的异质性。为了研究晶粒优选取向对结晶岩石宏观力学性能和微观特征的影响，提出了一种新颖的基于晶粒的微结构转换方法（MTM）。在 MTM 的基础上，通过平面坐标映射转换 Voronoi 晶体几何图形，得到具有目标长宽比和晶体取向的 GBM。具体来说，嵌入式 FISH 语言用于控制随机矿物种子大小和分布模式，以生成泰森多边形。通过对泰森多边形的顶点进行空间变换，得到满足岩石纹理的多边形几何图形作为晶粒边界。将变换后的复杂几何体作为 GBM 的晶体结构，并在 PFC2D 中开发了具有不同长宽比和晶体取向的 Lac du Bonnet 花岗岩模型。最后，在 PFC2D 中进行了一系列无压抗压强度测试，以验证所提出的晶体几何变化建模方法，并从不同角度研究晶粒优选取向对结晶岩宏观力学性能和微观断裂机制的影响。
{"title":"Discrete element simulation study on effects of grain preferred orientation on micro-cracking and macro-mechanical behavior of crystalline rocks","authors":"Yunpeng Hu, Zhuorui Zhang, Zhiwei Yan, Yucang Dong, Yongquan Zhu, Zhenrong Xia, Zhenwei Yan, Tongda Guo, Wanxue Long","doi":"10.1515/rams-2024-0001","DOIUrl":"https://doi.org/10.1515/rams-2024-0001","url":null,"abstract":"Grain-preferred orientation significantly influences the brittle fracture mechanism and failure mode of crystalline rocks. However, current grain-based models (GBMs) based on particle flow code (PFC) software are mostly proposed on the basis of the Voronoi tessellation method for grain boundary generation, which is difficult to simulate the heterogeneity of microstructure such as shape and orientation of rock minerals. To study the effect of grain-preferred orientation on macroscopic mechanical properties and microscopic characteristics of crystalline rocks, a novel grain-based microstructure transformation method (MTM) is proposed. Based on the MTM, a GBM with a target aspect ratio and crystal orientation is obtained by transforming the Voronoi crystal geometry through a planar coordinate mapping. Specifically, embedded FISH language is used to control random mineral seed size and distribution pattern to generate Tyson polygons. A polygon geometry that satisfies the rock texture is obtained as a grain boundary by spatially transforming the vertex of the Tyson polygon. The transformed complex geometry is taken as the crystal structure of the GBM, and the Lac du Bonnet granite models with different aspect ratios and crystal orientations were developed in PFC<jats:sup>2D</jats:sup>. Finally, a series of unconfined compressive strength tests are performed in PFC<jats:sup>2D</jats:sup> to verify the proposed modeling methods for the geometric variation of the crystals and to study the effects of the preferred orientation of the grains on the macroscopic mechanical properties and microscopic fracture mechanisms of the crystalline rocks from different perspectives.","PeriodicalId":54484,"journal":{"name":"Reviews on Advanced Materials Science","volume":"60 1","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140298817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Fe3+-activated near-infrared (NIR) luminescent materials have attracted widespread attention due to their tunable emission wavelength and extensive applications in various fields such as plant growth, food analysis, biomedical imaging, and night vision. Many excellent NIR materials have been developed by introducing non-toxic and environmentally friendly Fe3+ ions into different inorganic hosts. This article elucidates the luminescent properties of Fe3+ ions by combining the Tanabe–Sugano energy level diagram and the configuration coordinate model. The latest research progress on Fe3+-doped NIR luminescent materials is outlined, summarizing the luminescent characteristics of various Fe3+-doped materials, including emission wavelength, emission bandwidth, quantum efficiency, and thermal stability. Particularly, a detailed summary and analysis of the application areas of Fe3+-doped NIR luminescent materials are provided. Finally, the future prospects and challenges faced by Fe3+-doped NIR luminescent materials are presented. This review contributes to a deeper understanding of the luminescence mechanism of Fe3+ and the research progress of iron ion-doped luminescent materials, aiming to develop advanced Fe3+-activated NIR luminescent materials with enhanced performance and explore new application fields.
{"title":"Research progress on Fe3+-activated near-infrared phosphor","authors":"Bin Sun, Huixian Zhang, Yiming Wang","doi":"10.1515/rams-2023-0160","DOIUrl":"https://doi.org/10.1515/rams-2023-0160","url":null,"abstract":"Fe<jats:sup>3+</jats:sup>-activated near-infrared (NIR) luminescent materials have attracted widespread attention due to their tunable emission wavelength and extensive applications in various fields such as plant growth, food analysis, biomedical imaging, and night vision. Many excellent NIR materials have been developed by introducing non-toxic and environmentally friendly Fe<jats:sup>3+</jats:sup> ions into different inorganic hosts. This article elucidates the luminescent properties of Fe<jats:sup>3+</jats:sup> ions by combining the Tanabe–Sugano energy level diagram and the configuration coordinate model. The latest research progress on Fe<jats:sup>3+</jats:sup>-doped NIR luminescent materials is outlined, summarizing the luminescent characteristics of various Fe<jats:sup>3+</jats:sup>-doped materials, including emission wavelength, emission bandwidth, quantum efficiency, and thermal stability. Particularly, a detailed summary and analysis of the application areas of Fe<jats:sup>3+</jats:sup>-doped NIR luminescent materials are provided. Finally, the future prospects and challenges faced by Fe<jats:sup>3+</jats:sup>-doped NIR luminescent materials are presented. This review contributes to a deeper understanding of the luminescence mechanism of Fe<jats:sup>3+</jats:sup> and the research progress of iron ion-doped luminescent materials, aiming to develop advanced Fe<jats:sup>3+</jats:sup>-activated NIR luminescent materials with enhanced performance and explore new application fields.","PeriodicalId":54484,"journal":{"name":"Reviews on Advanced Materials Science","volume":"86 1","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140203642","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jun Zhao, Muhammad Sufian, Mohammed Awad Abuhussain, Fadi Althoey, Ahmed Farouk Deifalla
This study thoroughly reviews the recent design methods for ultra-high-performance concrete (UHPC) with agricultural waste. The goal is to identify UHPC composites that meets environmental sustainability requirements while fulfilling workability, durability, and mechanical properties. The capacity of typical review studies is limited in bridging the various literature aspects systematically. The article includes comparative analyses identifying these methods’ intrinsic connections and current trends. The analysis indicates that 71% of documents on incorporating agricultural waste into UHPC are in the “Engineering” and “Materials Science” disciplines, with 69% being journal articles, and 27% conference documents. Significant research keywords involve “Ultra-High-Performance Concrete,” “Cements,” “Sustainable Development,” and “Agricultural Wastes,” highlighting the extensive exploration of agricultural waste in UHPC. It has been discovered that agricultural waste can replace silica fume in UHPC, improving strength and durability by reducing pore volume and enhancing microstructure. Substituting 5–30% of cement with rice husk ash significantly boosts compressive strength, enhancing cement hydration, pore structure, and pozzolanic reaction, offering substantial environmental benefits and supporting the construction industry’s contribution to low-carbon sustainable development. This article provides guidance and recommendations for developing sustainable UHPC to meet diverse design specifications, promoting environmentally friendly construction practices.
{"title":"Exploring the potential of agricultural waste as an additive in ultra-high-performance concrete for sustainable construction: A comprehensive review","authors":"Jun Zhao, Muhammad Sufian, Mohammed Awad Abuhussain, Fadi Althoey, Ahmed Farouk Deifalla","doi":"10.1515/rams-2023-0181","DOIUrl":"https://doi.org/10.1515/rams-2023-0181","url":null,"abstract":"This study thoroughly reviews the recent design methods for ultra-high-performance concrete (UHPC) with agricultural waste. The goal is to identify UHPC composites that meets environmental sustainability requirements while fulfilling workability, durability, and mechanical properties. The capacity of typical review studies is limited in bridging the various literature aspects systematically. The article includes comparative analyses identifying these methods’ intrinsic connections and current trends. The analysis indicates that 71% of documents on incorporating agricultural waste into UHPC are in the “Engineering” and “Materials Science” disciplines, with 69% being journal articles, and 27% conference documents. Significant research keywords involve “Ultra-High-Performance Concrete,” “Cements,” “Sustainable Development,” and “Agricultural Wastes,” highlighting the extensive exploration of agricultural waste in UHPC. It has been discovered that agricultural waste can replace silica fume in UHPC, improving strength and durability by reducing pore volume and enhancing microstructure. Substituting 5–30% of cement with rice husk ash significantly boosts compressive strength, enhancing cement hydration, pore structure, and pozzolanic reaction, offering substantial environmental benefits and supporting the construction industry’s contribution to low-carbon sustainable development. This article provides guidance and recommendations for developing sustainable UHPC to meet diverse design specifications, promoting environmentally friendly construction practices.","PeriodicalId":54484,"journal":{"name":"Reviews on Advanced Materials Science","volume":"17 1","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140203781","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Shide Yu, Zhenyu Chen, Yiyin Sun, Dahong Huang, Ting Sun
This study aims to investigate the diffusion stabilization process of nano-Co2O3 during the non-precursor transformation of 3Y-TZP. 3Y-TZP was set as the control group, and the experimental groups were 0.1–0.3 mol% nano-Co2O3-doped 3Y-TZP. The samples were prepared by the ball milling process, isostatic cool pressing, and sintering. All samples were hydrothermally treated at 134°C and 2 bar for different time periods. The resistance to low-temperature degradation of nano-Co2O3-doped 3Y-TZP was analyzed by X-ray diffraction. The microstructure of zirconia ceramic samples was determined by scanning electron microscopy, transmission electron microscopy, atomic force microscopy, and electron paramagnetic resonance studies. The addition of nano-Co2O3 into 3Y-TZP resulted in higher hydrothermal aging resistance than 3Y-TZP. The addition of 0.2 mol% nano-Co2O3 dopants resulted in the highest hydrothermal aging resistance among nano-Co2O3-doped 3Y-TZP ceramics. The grain sizes of 3Y-0.2Co are smaller than those in the control group. With the increase of cobaltous oxide doping contents, the segregation of Co3+ ions at the crystal boundary increased. The content of oxygen vacancies on the surface of the sample increased with the increase of the Co2O3 doping content. The oxygen vacancy concentrations of 3Y-0.2Co increased obviously after aging. 3Y-0.1Co, 3Y-0.3Co, and the control showed decreased oxygen vacancy concentrations after aging. Trivalent element doping of 3Y-TZP effectively improved the aging resistance of 3Y-TZP. The addition of 0.2 mol% nano-Co2O3 resulted in the highest hydrothermal aging resistance. Improved aging resistance is attributed to the nano-Co2O3 doping resulting in the 3Y-TZP grain size inhibition, grain boundary segregation of cobalt ions, and oxygen vacancy maintenance. This work is expected to provide an effective reference for the development and application of budget dental materials by regulating grain boundary engineering.
{"title":"Effect of grain boundary segregation and oxygen vacancy annihilation on aging resistance of cobalt oxide-doped 3Y-TZP ceramics for biomedical applications","authors":"Shide Yu, Zhenyu Chen, Yiyin Sun, Dahong Huang, Ting Sun","doi":"10.1515/rams-2023-0159","DOIUrl":"https://doi.org/10.1515/rams-2023-0159","url":null,"abstract":"This study aims to investigate the diffusion stabilization process of nano-Co<jats:sub>2</jats:sub>O<jats:sub>3</jats:sub> during the non-precursor transformation of 3Y-TZP. 3Y-TZP was set as the control group, and the experimental groups were 0.1–0.3 mol% nano-Co<jats:sub>2</jats:sub>O<jats:sub>3</jats:sub>-doped 3Y-TZP. The samples were prepared by the ball milling process, isostatic cool pressing, and sintering. All samples were hydrothermally treated at 134°C and 2 bar for different time periods. The resistance to low-temperature degradation of nano-Co<jats:sub>2</jats:sub>O<jats:sub>3</jats:sub>-doped 3Y-TZP was analyzed by X-ray diffraction. The microstructure of zirconia ceramic samples was determined by scanning electron microscopy, transmission electron microscopy, atomic force microscopy, and electron paramagnetic resonance studies. The addition of nano-Co<jats:sub>2</jats:sub>O<jats:sub>3</jats:sub> into 3Y-TZP resulted in higher hydrothermal aging resistance than 3Y-TZP. The addition of 0.2 mol% nano-Co<jats:sub>2</jats:sub>O<jats:sub>3</jats:sub> dopants resulted in the highest hydrothermal aging resistance among nano-Co<jats:sub>2</jats:sub>O<jats:sub>3</jats:sub>-doped 3Y-TZP ceramics. The grain sizes of 3Y-0.2Co are smaller than those in the control group. With the increase of cobaltous oxide doping contents, the segregation of Co<jats:sup>3+</jats:sup> ions at the crystal boundary increased. The content of oxygen vacancies on the surface of the sample increased with the increase of the Co<jats:sub>2</jats:sub>O<jats:sub>3</jats:sub> doping content. The oxygen vacancy concentrations of 3Y-0.2Co increased obviously after aging. 3Y-0.1Co, 3Y-0.3Co, and the control showed decreased oxygen vacancy concentrations after aging. Trivalent element doping of 3Y-TZP effectively improved the aging resistance of 3Y-TZP. The addition of 0.2 mol% nano-Co<jats:sub>2</jats:sub>O<jats:sub>3</jats:sub> resulted in the highest hydrothermal aging resistance. Improved aging resistance is attributed to the nano-Co<jats:sub>2</jats:sub>O<jats:sub>3</jats:sub> doping resulting in the 3Y-TZP grain size inhibition, grain boundary segregation of cobalt ions, and oxygen vacancy maintenance. This work is expected to provide an effective reference for the development and application of budget dental materials by regulating grain boundary engineering.","PeriodicalId":54484,"journal":{"name":"Reviews on Advanced Materials Science","volume":"143 1","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140153284","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hanbo Zhu, Jibing Deng, Mei-Ling Zhuang, Chuanzhi Sun, Li Gao, Yuefeng Shao, Mingsen Wang, Youzhi Wang, Yao-Rong Dong, Lei Tong
In recent years, HRB400 and HTRB600 steel bars have become the mainstream standard reinforcing steel used in concrete structures in China. However, significant controversy still exists regarding the selection of material constitutive models and the determination of model parameters for buckling, fatigue, hysteresis, and other material characteristics. In this article, an automated process of multi-parameter calculation of the constitutive model for reinforcing steel – simulation accuracy evaluation of the constitutive model – selection of the constitutive model of reinforcing steel is established based on the hybrid programming method using MATLAB and OpenSees software. First, tensile and low-cycle fatigue tests were carried out on HRB400 and HTRB600 steel bars. Second, based on the constitutive model in OpenSees software and the skeleton curve and characteristics such as yielding, fatigue, and hysteresis, the constitutive model parameters of HRB400 and HTRB600 steel bars are determined using indirect and direct fitting methods. Finally, the five similarity parameters of the simulated normalized cumulative hysteretic energy dissipation coefficient are compared with the test results. The results indicate that the simulation accuracy of the Reinforcing Steel model exceeds 72%, which is higher than other four models, making it the best choice for reinforcing steel in numerical simulation.
{"title":"Numerical investigations on constitutive model parameters of HRB400 and HTRB600 steel bars based on tensile and fatigue tests","authors":"Hanbo Zhu, Jibing Deng, Mei-Ling Zhuang, Chuanzhi Sun, Li Gao, Yuefeng Shao, Mingsen Wang, Youzhi Wang, Yao-Rong Dong, Lei Tong","doi":"10.1515/rams-2023-0186","DOIUrl":"https://doi.org/10.1515/rams-2023-0186","url":null,"abstract":"In recent years, HRB400 and HTRB600 steel bars have become the mainstream standard reinforcing steel used in concrete structures in China. However, significant controversy still exists regarding the selection of material constitutive models and the determination of model parameters for buckling, fatigue, hysteresis, and other material characteristics. In this article, an automated process of multi-parameter calculation of the constitutive model for reinforcing steel – simulation accuracy evaluation of the constitutive model – selection of the constitutive model of reinforcing steel is established based on the hybrid programming method using MATLAB and OpenSees software. First, tensile and low-cycle fatigue tests were carried out on HRB400 and HTRB600 steel bars. Second, based on the constitutive model in OpenSees software and the skeleton curve and characteristics such as yielding, fatigue, and hysteresis, the constitutive model parameters of HRB400 and HTRB600 steel bars are determined using indirect and direct fitting methods. Finally, the five similarity parameters of the simulated normalized cumulative hysteretic energy dissipation coefficient are compared with the test results. The results indicate that the simulation accuracy of the Reinforcing Steel model exceeds 72%, which is higher than other four models, making it the best choice for reinforcing steel in numerical simulation.","PeriodicalId":54484,"journal":{"name":"Reviews on Advanced Materials Science","volume":"7 1","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140153084","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Akeem Damilola Akinwekomi, Olufemi Sylvester Bamisaye, Michael Oluwatosin Bodunrin
Research attention in powder metallurgy (PM) processing of high-entropy alloys (HEAs) is rising. Some reviews have been published but a detailed historical analysis to identify the thematic research areas and prospective future research areas is lacking. Therefore, this study presents a bibliometric literature analysis of PM-processed HEAs by mapping and clustering 700 articles published between 2007 and August 2022 in the Scopus database. The most prolific authors, their collaborators, institutions, and most preferred journals publishing PM-HEA works are identified and mapped. Publication trend shows that significant research attention in the PM processing of HEAs began to gain traction in 2016. The top three journals in this field are Journal of Alloys and Compounds, Materials Science and Engineering A, and Intermetallics. However, co-authorship network analysis does not reveal significant inter-institutional research collaboration indicating that strengthening this area could help to accelerate scientific discovery, enhance technology transfer, and commercialization of HEA products. Based on the co-occurrence frequencies of author keywords, popular research directions are identified, and a systematic review of emerging functional applications is undertaken. This work provides a comprehensive visual reference guide for researchers to deepen their knowledge of this field and delivers insight into prospective future research opportunities to stimulate further ground-breaking works.
粉末冶金（PM）加工高熵合金（HEAs）的研究关注度正在上升。虽然已经发表了一些综述，但还缺乏详细的历史分析来确定专题研究领域和未来的前瞻性研究领域。因此，本研究通过对Scopus数据库中2007年至2022年8月期间发表的700篇文章进行映射和聚类，对永磁加工高熵合金进行了文献计量分析。本研究确定并绘制了发表 PM-HEA 作品最多的作者、合作者、机构和最受欢迎的期刊。论文发表趋势显示，2016 年开始，对 PM 处理 HEA 的研究开始受到重视。该领域排名前三的期刊是《合金与化合物学报》、《材料科学与工程 A》和《金属间化合物》。然而，共同作者网络分析并未显示出显著的机构间研究合作，这表明加强这一领域的研究有助于加快科学发现、促进技术转让和 HEA 产品的商业化。根据作者关键词的共现频率，确定了热门研究方向，并对新兴功能应用进行了系统回顾。这部著作为研究人员提供了全面的视觉参考指南，帮助他们加深对这一领域的了解，并为未来的研究机会提供了洞察力，从而激发更多开创性的工作。
{"title":"Powder metallurgy processing of high entropy alloys: Bibliometric analysis and systematic review","authors":"Akeem Damilola Akinwekomi, Olufemi Sylvester Bamisaye, Michael Oluwatosin Bodunrin","doi":"10.1515/rams-2023-0188","DOIUrl":"https://doi.org/10.1515/rams-2023-0188","url":null,"abstract":"Research attention in powder metallurgy (PM) processing of high-entropy alloys (HEAs) is rising. Some reviews have been published but a detailed historical analysis to identify the thematic research areas and prospective future research areas is lacking. Therefore, this study presents a bibliometric literature analysis of PM-processed HEAs by mapping and clustering 700 articles published between 2007 and August 2022 in the Scopus database. The most prolific authors, their collaborators, institutions, and most preferred journals publishing PM-HEA works are identified and mapped. Publication trend shows that significant research attention in the PM processing of HEAs began to gain traction in 2016. The top three journals in this field are <jats:italic>Journal of Alloys and Compounds, Materials Science and Engineering A, and Intermetallics</jats:italic>. However, co-authorship network analysis does not reveal significant inter-institutional research collaboration indicating that strengthening this area could help to accelerate scientific discovery, enhance technology transfer, and commercialization of HEA products. Based on the co-occurrence frequencies of author keywords, popular research directions are identified, and a systematic review of emerging functional applications is undertaken. This work provides a comprehensive visual reference guide for researchers to deepen their knowledge of this field and delivers insight into prospective future research opportunities to stimulate further ground-breaking works.","PeriodicalId":54484,"journal":{"name":"Reviews on Advanced Materials Science","volume":"43 1","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140128231","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Adrianna Banach-Kopeć, Szymon Mania, Robert Tylingo
Bioprinting has a critical role in tissue engineering, allowing the creation of sophisticated cellular scaffolds with high resolution, shape fidelity, and cell viability. Achieving these parameters remains a challenge, necessitating bioinks that are biocompatible, printable, and biodegradable. This review highlights the potential of marine-derived polymers and crosslinking techniques including mammalian collagen and gelatin along with their marine equivalents. While denaturation temperatures vary based on origin, warm-water fish collagen and gelatin emerge as promising solutions. Building on the applications of mammalian collagen and gelatin, this study investigates their marine counterparts. Diverse research groups present different perspectives on printability and cell survival. Despite advances, current scaffolds are limited in size and layers, making applications such as extensive skin burn treatment or tissue regeneration difficult. The authors argue for the development of bioprinting, which includes spherical and adaptive printing. In adaptive printing, layers differentiate and propagate sequentially to overcome the challenges of multilayer printing and provide optimal conditions for the growth of deeply embedded cells. Moving the boundaries of bioprinting, future prospects include transformative applications in regenerative medicine.
{"title":"Marine polymers in tissue bioprinting: Current achievements and challenges","authors":"Adrianna Banach-Kopeć, Szymon Mania, Robert Tylingo","doi":"10.1515/rams-2023-0180","DOIUrl":"https://doi.org/10.1515/rams-2023-0180","url":null,"abstract":"Bioprinting has a critical role in tissue engineering, allowing the creation of sophisticated cellular scaffolds with high resolution, shape fidelity, and cell viability. Achieving these parameters remains a challenge, necessitating bioinks that are biocompatible, printable, and biodegradable. This review highlights the potential of marine-derived polymers and crosslinking techniques including mammalian collagen and gelatin along with their marine equivalents. While denaturation temperatures vary based on origin, warm-water fish collagen and gelatin emerge as promising solutions. Building on the applications of mammalian collagen and gelatin, this study investigates their marine counterparts. Diverse research groups present different perspectives on printability and cell survival. Despite advances, current scaffolds are limited in size and layers, making applications such as extensive skin burn treatment or tissue regeneration difficult. The authors argue for the development of bioprinting, which includes spherical and adaptive printing. In adaptive printing, layers differentiate and propagate sequentially to overcome the challenges of multilayer printing and provide optimal conditions for the growth of deeply embedded cells. Moving the boundaries of bioprinting, future prospects include transformative applications in regenerative medicine.","PeriodicalId":54484,"journal":{"name":"Reviews on Advanced Materials Science","volume":"13 1","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140128293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Muhammad Nasir Amin, Suleman Ayub Khan, Ahmed A. Alawi Al-Naghi, Enamur R. Latifee, Nawaf Alnawmasi, Ahmed Farouk Deifalla
Popular and eco-friendly alkali-activated materials (AAMs) replace Portland cement concrete. Due to the considerable compositional variability of AAMs and the inability of established materials science methods to understand composition–performance relationships, accurate property forecasts have proved impossible. This study set out to develop AAM compressive strength (CS) evaluation machine learning (ML) models using techniques including extreme gradient boosting (XGB), bagging regressor (BR), and multi-layer perceptron neural network (MLPNN). Ten input variables were used with a large dataset of 676 points. Statistical and K-fold studies were also used to evaluate the developed models’ correctness. XGB predicted the CS of AAM the best, followed by BR and MLPNN. The MLPNN and BR models had R2 values of 0.80 and 0.90, respectively, whereas the XGB model had 0.94. Results from statistical analyses and k-fold cross-validation of the used ML models further attest to their validity. The built models can potentially compute the CS of AAMs for a variety of input parameter values, reducing the requirement for costly and time-consuming laboratory testing. Researchers and businesses may find this study useful in determining the necessary quantities of AAMs’ raw components.
广受欢迎的环保型碱活性材料（AAMs）可替代硅酸盐水泥混凝土。由于碱活性材料的成分变化很大，而且现有的材料科学方法无法理解成分与性能之间的关系，因此无法进行准确的性能预测。本研究利用极端梯度提升（XGB）、袋装回归器（BR）和多层感知器神经网络（MLPNN）等技术开发了 AAM 抗压强度（CS）评估机器学习（ML）模型。使用了十个输入变量和一个包含 676 个点的大型数据集。统计和 K 折研究也用于评估所开发模型的正确性。XGB 对 AAM 的 CS 预测最好，其次是 BR 和 MLPNN。MLPNN 和 BR 模型的 R 2 值分别为 0.80 和 0.90，而 XGB 模型的 R 2 值为 0.94。对所使用的 ML 模型进行统计分析和 k 倍交叉验证的结果进一步证明了这些模型的有效性。所建立的模型可以计算各种输入参数值的 AAM 的 CS 值，从而减少了对成本高、耗时长的实验室测试的要求。研究人员和企业可能会发现本研究有助于确定 AAMs 原始成分的必要数量。
{"title":"Low-carbon embodied alkali-activated materials for sustainable construction: A comparative study of single and ensemble learners","authors":"Muhammad Nasir Amin, Suleman Ayub Khan, Ahmed A. Alawi Al-Naghi, Enamur R. Latifee, Nawaf Alnawmasi, Ahmed Farouk Deifalla","doi":"10.1515/rams-2023-0162","DOIUrl":"https://doi.org/10.1515/rams-2023-0162","url":null,"abstract":"Popular and eco-friendly alkali-activated materials (AAMs) replace Portland cement concrete. Due to the considerable compositional variability of AAMs and the inability of established materials science methods to understand composition–performance relationships, accurate property forecasts have proved impossible. This study set out to develop AAM compressive strength (CS) evaluation machine learning (ML) models using techniques including extreme gradient boosting (XGB), bagging regressor (BR), and multi-layer perceptron neural network (MLPNN). Ten input variables were used with a large dataset of 676 points. Statistical and K-fold studies were also used to evaluate the developed models’ correctness. XGB predicted the CS of AAM the best, followed by BR and MLPNN. The MLPNN and BR models had <jats:italic>R</jats:italic> <jats:sup>2</jats:sup> values of 0.80 and 0.90, respectively, whereas the XGB model had 0.94. Results from statistical analyses and k-fold cross-validation of the used ML models further attest to their validity. The built models can potentially compute the CS of AAMs for a variety of input parameter values, reducing the requirement for costly and time-consuming laboratory testing. Researchers and businesses may find this study useful in determining the necessary quantities of AAMs’ raw components.","PeriodicalId":54484,"journal":{"name":"Reviews on Advanced Materials Science","volume":"43 1","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140128291","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Grzegorz Przesławski, Katarzyna Szcześniak, Bartosz Grześkowiak, Antonino Mazzaglia, Maciej Jarzębski, Agata Niewczas, Paweł Kuczyński, Aneta Zarębska-Mróz, Agnieszka Marcinkowska
Nowadays, the search for unconventional antibacterial agents is very common. One of them may be eugenol (EU) (4-allyl-2-methoxyphenol), which exhibits antimicrobial properties against pathogenic bacteria and is used in the pharmaceutical industry. Owing to its structure, EU decreases the exotherm of polymerization without a negative impact on the degree of conversion. The properties of EU-modified bone cement, such as doughing time, maximum temperature, and setting time, will be characterized, as well as mechanical properties, EU release, and antibacterial properties. Bone cements were synthesized by mixing a powder phase composed of two commercially available methacrylate copolymers (Evonic) and a liquid phase containing 2-hydroxyethyl methacrylate, methyl methacrylate, triethylene glycol dimethacrylate, and EU with an amount of 0.5 wt% of bone cement sample. As an initiating system, benzoyl peroxide and N,N-dimethylaniline were used. Samples were prepared with various amounts of the initiating system. The doughing time, maximum temperature (Tmax), setting temperature (Tset), setting time (tset), and compressive strength tests were determined according to the ISO 5833:2002 standard requirements. The doughing time for bone cement depends on the amount of the initiating system. The maximum temperature during curing of bone cement is very low; however, the setting time is closer to the upper limit set by the standard. The compressive strength of the tested materials is good and significantly exceeds the requirements of the standard. EU release was very high and ranged from around 43–62% after 168 h. Moreover, antibacterial studies show that the tested bone cements are bacteriostatic for Staphylococcus aureus or and Escherichia coil strains. In summary, modified bone cements meet the ISO 5833:2002 standard requirements in all parameters and are characterized by good mechanical properties (similar to or higher than commercial bone cement), high EU release, and bacteriostatic properties.
如今，寻找非常规抗菌剂的工作非常普遍。其中一种可能是丁香酚（EU）（4-烯丙基-2-甲氧基苯酚），它对病原菌具有抗菌特性，并被用于制药业。由于其结构，丁香酚可降低聚合放热，但不会对转化率产生负面影响。我们将对 EU 改性骨水泥的特性（如成团时间、最高温度和凝结时间）以及机械特性、EU 释放和抗菌特性进行表征。骨水泥的合成方法是将两种市售甲基丙烯酸酯共聚物（Evonic）组成的粉相与含有甲基丙烯酸 2-羟乙基酯、甲基丙烯酸甲酯、三乙二醇二甲基丙烯酸酯和 EU 的液相混合在一起，混合量为骨水泥样品的 0.5 wt%。作为引发体系，使用了过氧化苯甲酰和 N,N-二甲基苯胺。用不同量的引发体系制备样品。骨水泥的成团时间、最高温度（T max）、凝结温度（T set）、凝结时间（t set）和抗压强度测试均按照 ISO 5833:2002 标准要求进行测定。骨水泥的成团时间取决于引发体系的数量。骨水泥固化过程中的最高温度非常低，但凝结时间更接近标准规定的上限。测试材料的抗压强度很好，大大超过了标准要求。此外，抗菌研究表明，测试的骨水泥对金黄色葡萄球菌或卷曲杆菌菌株具有抑菌作用。总之，改性骨水泥的所有参数都符合 ISO 5833:2002 标准的要求，并具有良好的机械性能（类似于或高于商用骨水泥）、高欧盟释放率和抑菌性能。
{"title":"Modification of methacrylate bone cement with eugenol – A new material with antibacterial properties","authors":"Grzegorz Przesławski, Katarzyna Szcześniak, Bartosz Grześkowiak, Antonino Mazzaglia, Maciej Jarzębski, Agata Niewczas, Paweł Kuczyński, Aneta Zarębska-Mróz, Agnieszka Marcinkowska","doi":"10.1515/rams-2023-0171","DOIUrl":"https://doi.org/10.1515/rams-2023-0171","url":null,"abstract":"Nowadays, the search for unconventional antibacterial agents is very common. One of them may be eugenol (EU) (4-allyl-2-methoxyphenol), which exhibits antimicrobial properties against pathogenic bacteria and is used in the pharmaceutical industry. Owing to its structure, EU decreases the exotherm of polymerization without a negative impact on the degree of conversion. The properties of EU-modified bone cement, such as doughing time, maximum temperature, and setting time, will be characterized, as well as mechanical properties, EU release, and antibacterial properties. Bone cements were synthesized by mixing a powder phase composed of two commercially available methacrylate copolymers (Evonic) and a liquid phase containing 2-hydroxyethyl methacrylate, methyl methacrylate, triethylene glycol dimethacrylate, and EU with an amount of 0.5 wt% of bone cement sample. As an initiating system, benzoyl peroxide and <jats:italic>N</jats:italic>,<jats:italic>N</jats:italic>-dimethylaniline were used. Samples were prepared with various amounts of the initiating system. The doughing time, maximum temperature (<jats:italic>T</jats:italic> <jats:sub>max</jats:sub>), setting temperature (<jats:italic>T</jats:italic> <jats:sub>set</jats:sub>), setting time (<jats:italic>t</jats:italic> <jats:sub>set</jats:sub>), and compressive strength tests were determined according to the ISO 5833:2002 standard requirements. The doughing time for bone cement depends on the amount of the initiating system. The maximum temperature during curing of bone cement is very low; however, the setting time is closer to the upper limit set by the standard. The compressive strength of the tested materials is good and significantly exceeds the requirements of the standard. EU release was very high and ranged from around 43–62% after 168 h. Moreover, antibacterial studies show that the tested bone cements are bacteriostatic for <jats:italic>Staphylococcus aureus</jats:italic> or and <jats:italic>Escherichia coil</jats:italic> strains. In summary, modified bone cements meet the ISO 5833:2002 standard requirements in all parameters and are characterized by good mechanical properties (similar to or higher than commercial bone cement), high EU release, and bacteriostatic properties.","PeriodicalId":54484,"journal":{"name":"Reviews on Advanced Materials Science","volume":"46 1","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140075045","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The construction sector has been under growing public attention recently as one of the leading causes of climate change and its detrimental effects on local communities. In this regard, geopolymer concrete (GPC) has been proposed as a replacement for conventional concrete. Predicting the concrete’s strength before pouring is, therefore, quite useful. The mechanical strength of slag and corncob ash (SCA–GPC), a GPC made from slag and corncob ash, was predicted utilizing multi-expression programming (MEP). Modeling parameters’ relative importance was determined using sensitivity analysis. When estimating the compressive, flexural, and split tensile strengths of SCA–GPC with MEP, 0.95, 0.93, and 0.92 R2-values were noted between the target and predicted results. The developed models were validated using statistical tests for error and efficiency. The sensitivity analysis revealed that within the mix proportions, the slag quantity (65%), curing age (25%), and fine aggregate (3.30%) quantity significantly influenced the mechanical strength of SCA–GPC. The MEP models result in distinct empirical equations for the strength characteristics of SCA–GPC, unlike Python-based models, which might aid industry and researchers worldwide in determining optimal mix design proportions, thus eliminating unneeded test repetitions in the laboratory.
{"title":"Experimenting the influence of corncob ash on the mechanical strength of slag-based geopolymer concrete","authors":"Jing Wang, Qian Qu, Suleman Ayub Khan, Badr Saad Alotaibi, Fadi Althoey, Yaser Gamil, Taoufik Najeh","doi":"10.1515/rams-2023-0187","DOIUrl":"https://doi.org/10.1515/rams-2023-0187","url":null,"abstract":"The construction sector has been under growing public attention recently as one of the leading causes of climate change and its detrimental effects on local communities. In this regard, geopolymer concrete (GPC) has been proposed as a replacement for conventional concrete. Predicting the concrete’s strength before pouring is, therefore, quite useful. The mechanical strength of slag and corncob ash (SCA–GPC), a GPC made from slag and corncob ash, was predicted utilizing multi-expression programming (MEP). Modeling parameters’ relative importance was determined using sensitivity analysis. When estimating the compressive, flexural, and split tensile strengths of SCA–GPC with MEP, 0.95, 0.93, and 0.92 <jats:italic>R</jats:italic> <jats:sup>2</jats:sup>-values were noted between the target and predicted results. The developed models were validated using statistical tests for error and efficiency. The sensitivity analysis revealed that within the mix proportions, the slag quantity (65%), curing age (25%), and fine aggregate (3.30%) quantity significantly influenced the mechanical strength of SCA–GPC. The MEP models result in distinct empirical equations for the strength characteristics of SCA–GPC, unlike Python-based models, which might aid industry and researchers worldwide in determining optimal mix design proportions, thus eliminating unneeded test repetitions in the laboratory.","PeriodicalId":54484,"journal":{"name":"Reviews on Advanced Materials Science","volume":"20 1","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140032387","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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