Pub Date : 2025-03-03DOI: 10.1016/j.matchemphys.2025.130663
Weiye Xie , Ruifang Chen , Zhichen Guan , Wei Qian , Jie Cai , Deng Zhang , Yinqun Hua
The IN718 superalloy underwent laser shock peening (LSP) and heat treatment (HT) processes. The electrochemical corrosion behavior of four sample types was evaluated in a 3.5 wt% NaCl water solution. The results indicated that the combined application of LSP and HT (LSP + HT) significantly improved the corrosion resistance of IN718. LSP refined grain size and modified dislocation structure, creating additional diffusion channels and increasing binding energy. These changes promoted the precipitation of higher quantities of γ′ and γ″ phase particles during subsequent HT, accelerating the formation of a protective passivation layer. The HT process concurrently minimized microscopic defects within the crystal structure, significantly enhancing the material's corrosion resistance. Moreover, the corrosion current density of the LSP + HT samples decreased by 76.26 % compared to the as-received (AR) samples. Additionally, surface pitting in the LSP + HT samples was substantially reduced after corrosion, with the average pit diameter decreasing by 53.7 % compared to the AR samples.
{"title":"Effect of laser shock peening and heat treatment on the electrochemical behavior of IN718 superalloy","authors":"Weiye Xie , Ruifang Chen , Zhichen Guan , Wei Qian , Jie Cai , Deng Zhang , Yinqun Hua","doi":"10.1016/j.matchemphys.2025.130663","DOIUrl":"10.1016/j.matchemphys.2025.130663","url":null,"abstract":"<div><div>The IN718 superalloy underwent laser shock peening (LSP) and heat treatment (HT) processes. The electrochemical corrosion behavior of four sample types was evaluated in a 3.5 wt% NaCl water solution. The results indicated that the combined application of LSP and HT (LSP + HT) significantly improved the corrosion resistance of IN718. LSP refined grain size and modified dislocation structure, creating additional diffusion channels and increasing binding energy. These changes promoted the precipitation of higher quantities of γ′ and γ″ phase particles during subsequent HT, accelerating the formation of a protective passivation layer. The HT process concurrently minimized microscopic defects within the crystal structure, significantly enhancing the material's corrosion resistance. Moreover, the corrosion current density of the LSP + HT samples decreased by 76.26 % compared to the as-received (AR) samples. Additionally, surface pitting in the LSP + HT samples was substantially reduced after corrosion, with the average pit diameter decreasing by 53.7 % compared to the AR samples.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"339 ","pages":"Article 130663"},"PeriodicalIF":4.3,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143620064","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Herein, we design a novel electrocatalyst-based bimetallic (Fe/Cu) Metal-organic Framework intercalated with Vanadium disulfide (VS2) nanosheet acting as a suitable electrochemical sensor for the detection of Melamine. The MOF@VS2 nanocomposite was synthesized using a one-step hydrothermal method. The analytical techniques for cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and differential pulse voltammetry (DPV) were used to examine the electrochemical studies of melamine detection. Interestingly, MOF@VS2 nanocomposite coated with glass carbon electrode utilizes an oxidative pathway to break down melamine, followed by three steps. The initial oxidation reaction converts melamine directly into ammeline. Further, ammeline, undergoing additional oxidation, transforms into ammelide. As a result, the oxidation of ammelide yields cyanuric acid. Based on this mechanism, the proposed electrochemical sensor demonstrated a high oxidation potential of +0.24 V, a wide linear range (10–150 μM), a low detection limit of 0.42 nM, and superior electron transfer kinetics, making it more effective in melamine detection than coexisting molecules. The novel electrocatalyst of MOF@VS2 nanocomposite brings about a high synergistic effect, good electrical conductivity, and a large surface area. This finding suggests its potential applications as a melamine sensor, particularly in the food safety and healthcare sectors.
{"title":"A unique VS2 nanosheet decorated metal-organic framework based highly synergistic electrocatalyst for the efficient detection of melamine in food samples","authors":"Nandha Gopal Balasubramaniyan , Sethupathy Ramanathan , Narendra Pal Singh Chauhan , Panneerselvam Perumal","doi":"10.1016/j.matchemphys.2025.130660","DOIUrl":"10.1016/j.matchemphys.2025.130660","url":null,"abstract":"<div><div>Herein, we design a novel electrocatalyst-based bimetallic (Fe/Cu) Metal-organic Framework intercalated with Vanadium disulfide (VS<sub>2</sub>) nanosheet acting as a suitable electrochemical sensor for the detection of Melamine. The MOF@VS<sub>2</sub> nanocomposite was synthesized using a one-step hydrothermal method. The analytical techniques for cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and differential pulse voltammetry (DPV) were used to examine the electrochemical studies of melamine detection. Interestingly, MOF@VS<sub>2</sub> nanocomposite coated with glass carbon electrode utilizes an oxidative pathway to break down melamine, followed by three steps. The initial oxidation reaction converts melamine directly into ammeline. Further, ammeline, undergoing additional oxidation, transforms into ammelide. As a result, the oxidation of ammelide yields cyanuric acid. Based on this mechanism, the proposed electrochemical sensor demonstrated a high oxidation potential of +0.24 V, a wide linear range (10–150 μM), a low detection limit of 0.42 nM, and superior electron transfer kinetics, making it more effective in melamine detection than coexisting molecules. The novel electrocatalyst of MOF@VS<sub>2</sub> nanocomposite brings about a high synergistic effect, good electrical conductivity, and a large surface area. This finding suggests its potential applications as a melamine sensor, particularly in the food safety and healthcare sectors.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"338 ","pages":"Article 130660"},"PeriodicalIF":4.3,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143551200","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-03-03DOI: 10.1016/j.matchemphys.2025.130651
Abdelaziz Lekrine , Ahmed Belaadi , Isma Dembri , Mohammad Jawaid , Ahmad Safwan Ismail , Djamel Ghernaout
The purpose of this investigation was to develop 100 % natural biocomposites from biopolymers such as polylactic acid (PLA) based on treated fibers and biochar (B) derived from the Washingtonia filifera (WF) plant. The dynamic mechanical characteristics, coefficient of thermal expansion, and thermal stability (TS) of biocomposites were studied using dynamic mechanical and thermomechanical analyses. Increasing the fiber treatment period caused the melting temperature of the biocomposites to decrease. The PLA-BWF72 composite demonstrated better TS compared to the others. Compared to untreated hybrid biocomposites, these composites exhibit enhanced TS and resistance following treatment with sodium bicarbonate. The dynamic mechanical analysis revealed that PLA-BWF72 hybrid biocomposites (2621.987 MPa) had a significantly higher storage modulus (SM) than the biocomposites produced. However, PLA-BWF24 hybrid biocomposites showed the lowest SM (2299.174 MPa), indicating a low level of stiffness. Cole-Cole plots of the hybrid biocomposites developed revealed the presence of imperfect semicircles, indicating their heterogeneity.
{"title":"Fiber treatment impact on the thermal behavior of biomass/palm-fibers polylactic-acid hybrid biocomposites","authors":"Abdelaziz Lekrine , Ahmed Belaadi , Isma Dembri , Mohammad Jawaid , Ahmad Safwan Ismail , Djamel Ghernaout","doi":"10.1016/j.matchemphys.2025.130651","DOIUrl":"10.1016/j.matchemphys.2025.130651","url":null,"abstract":"<div><div>The purpose of this investigation was to develop 100 % natural biocomposites from biopolymers such as polylactic acid (PLA) based on treated fibers and biochar (B) derived from the Washingtonia filifera (WF) plant. The dynamic mechanical characteristics, coefficient of thermal expansion, and thermal stability (TS) of biocomposites were studied using dynamic mechanical and thermomechanical analyses. Increasing the fiber treatment period caused the melting temperature of the biocomposites to decrease. The PLA-BWF72 composite demonstrated better TS compared to the others. Compared to untreated hybrid biocomposites, these composites exhibit enhanced TS and resistance following treatment with sodium bicarbonate. The dynamic mechanical analysis revealed that PLA-BWF72 hybrid biocomposites (2621.987 MPa) had a significantly higher storage modulus (SM) than the biocomposites produced. However, PLA-BWF24 hybrid biocomposites showed the lowest SM (2299.174 MPa), indicating a low level of stiffness. Cole-Cole plots of the hybrid biocomposites developed revealed the presence of imperfect semicircles, indicating their heterogeneity.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"338 ","pages":"Article 130651"},"PeriodicalIF":4.3,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143577738","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-03-03DOI: 10.1016/j.matchemphys.2025.130672
Omer Munir , Muhammad Saleem , Muhammad Zeewaqar Manzoor , Amir Shahzad , Shazima Shahid , Syed Mohsin Bin Arif , Muhammad Nadeem Akhtar
The increasing demand for advanced energy storage devices drives research into innovative and high-performance composite materials. Among these are hybrid materials made of carbon-based substances such as carbon nanotubes and metal-organic frameworks (MOFs), which exhibit advanced electrochemical properties compared to single-component systems. This work used the solution mixing and self-assembly method to synthesize a novel ZIF-8/ZIF-67/MWCNT composite with unique structural and electrochemical properties. XRD analysis confirmed the crystalline structure of the composite, and FTIR and Raman spectra further validated the successful integration of ZIF-8, ZIF-67, and MWCNTs. Further, SEM analysis gave an average particle size of 2.38 μm, and BET results showed a low surface area of 0.2001 m2/g and an average pore size of 523.1 Å that promotes ion transport. The rough surface of this composite contributed to enhanced electrochemical performance, showing a hybrid behavior and achieved a specific capacitance of 194.48 F/g at 0.8 A/g, with an energy density of 3.90 Wh/kg and a power density of 152 W/kg, respectively. The composite also retains 50.12 % of its initial capacitance after 3000 cycles at a higher scan rate of 100 mV/s, demonstrating excellent cyclic stability even under such higher scan rates. These results point to ZIF-8/ZIF-67/MWCNT composite as a promising candidate for high-performance supercapacitor applications, utilizing the combined advantages of EDLC and pseudocapacitance.
{"title":"Novel ZIF-8/ZIF-67 and multi-wall carbon nanotubes ternary composite: A promising electrode material for high capacitance supercapacitors","authors":"Omer Munir , Muhammad Saleem , Muhammad Zeewaqar Manzoor , Amir Shahzad , Shazima Shahid , Syed Mohsin Bin Arif , Muhammad Nadeem Akhtar","doi":"10.1016/j.matchemphys.2025.130672","DOIUrl":"10.1016/j.matchemphys.2025.130672","url":null,"abstract":"<div><div>The increasing demand for advanced energy storage devices drives research into innovative and high-performance composite materials. Among these are hybrid materials made of carbon-based substances such as carbon nanotubes and metal-organic frameworks (MOFs), which exhibit advanced electrochemical properties compared to single-component systems. This work used the solution mixing and self-assembly method to synthesize a novel ZIF-8/ZIF-67/MWCNT composite with unique structural and electrochemical properties. XRD analysis confirmed the crystalline structure of the composite, and FTIR and Raman spectra further validated the successful integration of ZIF-8, ZIF-67, and MWCNTs. Further, SEM analysis gave an average particle size of 2.38 μm, and BET results showed a low surface area of 0.2001 m<sup>2</sup>/g and an average pore size of 523.1 Å that promotes ion transport. The rough surface of this composite contributed to enhanced electrochemical performance, showing a hybrid behavior and achieved a specific capacitance of 194.48 F/g at 0.8 A/g, with an energy density of 3.90 Wh/kg and a power density of 152 W/kg, respectively. The composite also retains 50.12 % of its initial capacitance after 3000 cycles at a higher scan rate of 100 mV/s, demonstrating excellent cyclic stability even under such higher scan rates. These results point to ZIF-8/ZIF-67/MWCNT composite as a promising candidate for high-performance supercapacitor applications, utilizing the combined advantages of EDLC and pseudocapacitance.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"338 ","pages":"Article 130672"},"PeriodicalIF":4.3,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143591978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lithium-ion batteries (LIBs) are extensively utilized for energy storage due to their high energy density, minimal memory effect, low self-discharge rates, and excellent cycling stability. Approximately 180.000 tonnes of LIBs have been utilized, with nickel batteries representing 40 % of the overall consumption. Addressing the issue of accumulated battery waste is crucial, particularly regarding the challenges presented by nickel manganese cobalt (NMC) cathode waste. Therefore, this study proposes the use of a solid-state sintering method to regenerate the decomposed cathode material of lithium nickel manganese cobalt oxide (LiNi0.3Mn0.3Co0.3O2) from LIBs. LIBs are regenerated through the addition of lithium doping, allowing the structure to revert to its original state with lithium carbonate serving as the lithium source. The regeneration process is conducted by incorporating lithium along with its transition metal ratio (Li/TM = 1.05:1; 1.10:1; 1.15:1; 1.20:1) and varying the sintering temperature (700 °C, 750 °C, 800 °C, and 850 °C). The findings demonstrate that configurations featuring a Li/TM ratio of 1.10 and a sintering temperature of 800 °C show optimal electrochemical performance, achieving a discharge capacity of 124.87 mAh/g at 0.1C and 111.59 mAh/g at 0.5C, along with a capacity retention of 94.7 % after 50 cycles. This outcome demonstrates reduced efficiency and emissions as a result of the process's brief duration and absence of ion extraction. The NMC recycling process serves as an important mechanism for quality control.
{"title":"Potential regulation strategy of molar ratio and solid-state sintering temperature on regeneration of spent lithium nickel manganese cobalt oxides (NMC 111) cathode","authors":"Infimum Deviasi Yulamda , Widyastuti Widyastuti , Lukman Noerochim , Retno Asih , Muhammad Bagas Ananda , Alvian Toto Wibisono , Yusuf Pradesar , Rojana Pornprasertsuk , Uda Hashim , Sudaryanto Sudaryanto , Liyana Labiba Zulfa , Eka Nurul Falah , Ninik Safrida","doi":"10.1016/j.matchemphys.2025.130658","DOIUrl":"10.1016/j.matchemphys.2025.130658","url":null,"abstract":"<div><div>Lithium-ion batteries (LIBs) are extensively utilized for energy storage due to their high energy density, minimal memory effect, low self-discharge rates, and excellent cycling stability. Approximately 180.000 tonnes of LIBs have been utilized, with nickel batteries representing 40 % of the overall consumption. Addressing the issue of accumulated battery waste is crucial, particularly regarding the challenges presented by nickel manganese cobalt (NMC) cathode waste. Therefore, this study proposes the use of a solid-state sintering method to regenerate the decomposed cathode material of lithium nickel manganese cobalt oxide (LiNi<sub>0.3</sub>Mn<sub>0.3</sub>Co<sub>0.3</sub>O<sub>2</sub>) from LIBs. LIBs are regenerated through the addition of lithium doping, allowing the structure to revert to its original state with lithium carbonate serving as the lithium source. The regeneration process is conducted by incorporating lithium along with its transition metal ratio (Li/TM = 1.05:1; 1.10:1; 1.15:1; 1.20:1) and varying the sintering temperature (700 °C, 750 °C, 800 °C, and 850 °C). The findings demonstrate that configurations featuring a Li/TM ratio of 1.10 and a sintering temperature of 800 °C show optimal electrochemical performance, achieving a discharge capacity of 124.87 mAh/g at 0.1C and 111.59 mAh/g at 0.5C, along with a capacity retention of 94.7 % after 50 cycles. This outcome demonstrates reduced efficiency and emissions as a result of the process's brief duration and absence of ion extraction. The NMC recycling process serves as an important mechanism for quality control.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"338 ","pages":"Article 130658"},"PeriodicalIF":4.3,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143578165","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This study focused on synthesizing a novel cathode material by doping bimetallic Fe and Zn-oxide nanoparticles in 1:1 M ratio onto the surface of a PbO2/Pb electrode through a hydrothermal process. The synthesized PbO2/Pb-based electrodes were comprehensively characterised using several techniques. The Electro Fenton (EF) process was optimized for treating wastewater containing methylene blue (MB), with a bimetal oxide (Fe–Zn–PbO2/Pb) electrode as the cathode. Optimization of process parameters was conducted using the Box Behnken model using Design of Expert tool, resulting in remarkable MB removal and Chemical Oxygen Demand (COD) change of 94 % (±0.5 %) and 78 % (±0.6 %), respectively, under optimized conditions (150 mg/L initial concentration, 180 min treatment time, and 60 mA/cm2 current density). Results confirmed that the EF process through oxygen the reduction potential for different electrode and found that H2O2 production approximately two-fold higher than the PbO2. Liquid Chromatography-Mass Spectrometry analysis elucidated the degradation mechanism of MB. The Fe–Zn–PbO2/Pb cathode exhibited superior performance, with a peak mineralization current efficiency of 67 % and energy consumption of 2.5 kWh/g-TOC. Moreover, it significantly reduced both the percentage of COD (93.7 %) and Total Organic Carbon (85 %) change in real dye industry wastewater, highlighting its potential for addressing complex industrial wastewater treatment.
{"title":"Optimization and modeling of bimetallic oxide (Fe–Zn) nanoparticles on a PbO2/Pb electrode for the electro-fenton process in industrial wastewater treatment","authors":"Shambhoo Sharan , Prateek Khare , Ravi Shankar , Navneet Kumar Mishra , Ankit Tyagi , Akshay Modi , Shiv Singh","doi":"10.1016/j.matchemphys.2025.130667","DOIUrl":"10.1016/j.matchemphys.2025.130667","url":null,"abstract":"<div><div>This study focused on synthesizing a novel cathode material by doping bimetallic Fe and Zn-oxide nanoparticles in 1:1 M ratio onto the surface of a PbO<sub>2</sub>/Pb electrode through a hydrothermal process. The synthesized PbO<sub>2</sub>/Pb-based electrodes were comprehensively characterised using several techniques. The Electro Fenton (EF) process was optimized for treating wastewater containing methylene blue (MB), with a bimetal oxide (Fe–Zn–PbO<sub>2</sub>/Pb) electrode as the cathode. Optimization of process parameters was conducted using the Box Behnken model using Design of Expert tool, resulting in remarkable MB removal and Chemical Oxygen Demand (COD) change of 94 % (±0.5 %) and 78 % (±0.6 %), respectively, under optimized conditions (150 mg/L initial concentration, 180 min treatment time, and 60 mA/cm<sup>2</sup> current density). Results confirmed that the EF process through oxygen the reduction potential for different electrode and found that H<sub>2</sub>O<sub>2</sub> production approximately two-fold higher than the PbO<sub>2</sub>. Liquid Chromatography-Mass Spectrometry analysis elucidated the degradation mechanism of MB. The Fe–Zn–PbO<sub>2</sub>/Pb cathode exhibited superior performance, with a peak mineralization current efficiency of 67 % and energy consumption of 2.5 kWh/g-TOC. Moreover, it significantly reduced both the percentage of COD (93.7 %) and Total Organic Carbon (85 %) change in real dye industry wastewater, highlighting its potential for addressing complex industrial wastewater treatment.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"338 ","pages":"Article 130667"},"PeriodicalIF":4.3,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143551183","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-03-03DOI: 10.1016/j.matchemphys.2025.130659
Nesa Doostmohammadi , Mardali Yousefpour , Mohammad Sadegh Nourbakhsh , Marjan Bahraminasab
Design of bone tissue engineering composites consisting of biodegradable polymers and biocompatible ceramics as bioscaffolds has attracted many attentions in recent years. In the present study, polycaprolacton (PCL) scaffolds and its composites with zirconia (PCL/ZrO2), and zirconia and fluorapatite (PCL/ZrO2/FA) were fabricated by a 3D printing technique. Various analyses such as X-ray diffraction, scanning electron microscope, energy dispersive spectroscopy and Fourier transform infrared spectroscopy were used to characterize the scaffolds. Furtheremore, compressive strength, degradability, and cytotoxicity were also assessed. The results showed that by adding ZrO2 and FA to polycaprolactone, the filament (strut) diameter increased from about 464.2 to 643.8 and 766.3 μm, respectively; thus, the pore size decreased (from 735.5 to 436.5 and 426.2 μm), accordingly. The EDS and FTIR results showed that in PCL/ZrO2 and PCL/ZrO2/FA scaffolds, the contributing elements including zirconium, calcium, and phosphorus were uniformly dispersed in polymer matrix. In addition, it was found that the compressive strength of the composite scaffolds was higher due to the presence of ZrO2 (1.807 MPa) and ZrO2/FA (2.252 MPa). Meanwhile, biodegradability test in simulated body fluid showed that PCL scaffolds had a slower degradation rate than the two composite scaffolds. Furthermore, the biocompatibility of scaffolds was confirmed by MTT assay on osteoblastic cells (MC3T3-E1). From the results obtained, it can be concluded that PCL/ZrO2/FA composite scaffolds with 3 wt% of ZrO2 and 2 wt % of FA can be considered as an optimal scaffold, which can be a suitable candidate for bone regeneration and orthopedic applications.
{"title":"Fabrication and characterization of 3D printed PCL/ZrO2/FA scaffolds for bone tissue engineering","authors":"Nesa Doostmohammadi , Mardali Yousefpour , Mohammad Sadegh Nourbakhsh , Marjan Bahraminasab","doi":"10.1016/j.matchemphys.2025.130659","DOIUrl":"10.1016/j.matchemphys.2025.130659","url":null,"abstract":"<div><div>Design of bone tissue engineering composites consisting of biodegradable polymers and biocompatible ceramics as bioscaffolds has attracted many attentions in recent years. In the present study, polycaprolacton (PCL) scaffolds and its composites with zirconia (PCL/ZrO<sub>2</sub>), and zirconia and fluorapatite (PCL/ZrO<sub>2</sub>/FA) were fabricated by a 3D printing technique. Various analyses such as X-ray diffraction, scanning electron microscope, energy dispersive spectroscopy and Fourier transform infrared spectroscopy were used to characterize the scaffolds. Furtheremore, compressive strength, degradability, and cytotoxicity were also assessed. The results showed that by adding ZrO<sub>2</sub> and FA to polycaprolactone, the filament (strut) diameter increased from about 464.2 to 643.8 and 766.3 μm, respectively; thus, the pore size decreased (from 735.5 to 436.5 and 426.2 μm), accordingly. The EDS and FTIR results showed that in PCL/ZrO<sub>2</sub> and PCL/ZrO<sub>2</sub>/FA scaffolds, the contributing elements including zirconium, calcium, and phosphorus were uniformly dispersed in polymer matrix. In addition, it was found that the compressive strength of the composite scaffolds was higher due to the presence of ZrO<sub>2</sub> (1.807 MPa) and ZrO<sub>2</sub>/FA (2.252 MPa). Meanwhile, biodegradability test in simulated body fluid showed that PCL scaffolds had a slower degradation rate than the two composite scaffolds. Furthermore, the biocompatibility of scaffolds was confirmed by MTT assay on osteoblastic cells (MC3T3-E1). From the results obtained, it can be concluded that PCL/ZrO<sub>2</sub>/FA composite scaffolds with 3 wt% of ZrO<sub>2</sub> and 2 wt % of FA can be considered as an optimal scaffold, which can be a suitable candidate for bone regeneration and orthopedic applications.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"338 ","pages":"Article 130659"},"PeriodicalIF":4.3,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143577737","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-03-03DOI: 10.1016/j.matchemphys.2025.130664
Hongkai Qiao , Qinglin Li , Jiao Zhang , Jing Yang , Changjun Han , Zhi Dong
Zn-based alloys are becoming an interesting material in the medical field because of their good biocompatibility and suitable degradation rate. However, the lower strength and poor plasticity severely limit their future applicability. To enhance the mechanical performance and meet the requirement of degradation rate after implantation, the alloying, extrusion, and rolling of Zn alloys have been widely applied. In this work, the effects on the microstructure, mechanical performances, and corrosive behavior of biomedical degradable Zn-0.5Sr alloy with 0.6 wt% Li addition and extrusion deformation were systematically investigated. The microstructure evolution revealed that the α-Zn grains size was significantly reduced from 8.7 μm to 4.8 μm when 0.6 wt% Li was added to Zn-0.5Sr alloy. Furthermore, Zn-0.5Sr-0.6Li alloy had a more obvious texture structure along the extrusion direction after extrusion than that of Zn-0.5Sr alloy. Compared to the mechanical properties of extruded Zn-0.5Sr-0.6Li alloy and Zn-0.5Sr alloy, the yield strength (YS) was enhanced from 125 MPa to 378 MPa, and the ultimate tensile strength (UTS) was improved from 173 MPa to 541 MPa. However, the plasticity occurred to deterioration, and the elongation (El) decreased from 10.85 % to 7.69 %. In addition, the electrochemical testing results showed that the degradation rate of extruded Zn-0.5Sr alloy was 4.098 mm/year, while the degradation rate of Zn-0.5Sr-0.6Li alloy was dramatically reduced to 2.146 mm/year. Meanwhile, following 30 days of in vitro immersion corrosion, the degradation rate of the extruded Zn-0.5Sr alloy was 1.987 ± 0.007 mm/year, while the rate of corrosion of Zn-0.5Sr-0.6Li alloy was 1.216 ± 0.015 mm/year. The result indicated that the addition of Li to Zn-0.5Sr alloy resulted in a decrease in the corrosion rate. Furthermore, it was demonstrated that adding Li to Zn-0.5Sr alloy can improve biocompatibility through in-vitro cell experiments. This work indicated that the Zn-0.5Sr alloy treated by Li element addition and extruded deformation has great potential for application in the field of bone repair.
{"title":"Investigation on the microstructure, mechanical performances, in vitro degradation behavior and biocompatibility of biodegradable Zn-0.5Sr alloy by Li alloying and extruded deformation","authors":"Hongkai Qiao , Qinglin Li , Jiao Zhang , Jing Yang , Changjun Han , Zhi Dong","doi":"10.1016/j.matchemphys.2025.130664","DOIUrl":"10.1016/j.matchemphys.2025.130664","url":null,"abstract":"<div><div>Zn-based alloys are becoming an interesting material in the medical field because of their good biocompatibility and suitable degradation rate. However, the lower strength and poor plasticity severely limit their future applicability. To enhance the mechanical performance and meet the requirement of degradation rate after implantation, the alloying, extrusion, and rolling of Zn alloys have been widely applied. In this work, the effects on the microstructure, mechanical performances, and corrosive behavior of biomedical degradable Zn-0.5Sr alloy with 0.6 wt% Li addition and extrusion deformation were systematically investigated. The microstructure evolution revealed that the α-Zn grains size was significantly reduced from 8.7 μm to 4.8 μm when 0.6 wt% Li was added to Zn-0.5Sr alloy. Furthermore, Zn-0.5Sr-0.6Li alloy had a more obvious texture structure along the extrusion direction after extrusion than that of Zn-0.5Sr alloy. Compared to the mechanical properties of extruded Zn-0.5Sr-0.6Li alloy and Zn-0.5Sr alloy, the yield strength (YS) was enhanced from 125 MPa to 378 MPa, and the ultimate tensile strength (UTS) was improved from 173 MPa to 541 MPa. However, the plasticity occurred to deterioration, and the elongation (El) decreased from 10.85 % to 7.69 %. In addition, the electrochemical testing results showed that the degradation rate of extruded Zn-0.5Sr alloy was 4.098 mm/year, while the degradation rate of Zn-0.5Sr-0.6Li alloy was dramatically reduced to 2.146 mm/year. Meanwhile, following 30 days of in vitro immersion corrosion, the degradation rate of the extruded Zn-0.5Sr alloy was 1.987 ± 0.007 mm/year, while the rate of corrosion of Zn-0.5Sr-0.6Li alloy was 1.216 ± 0.015 mm/year. The result indicated that the addition of Li to Zn-0.5Sr alloy resulted in a decrease in the corrosion rate. Furthermore, it was demonstrated that adding Li to Zn-0.5Sr alloy can improve biocompatibility through in-vitro cell experiments. This work indicated that the Zn-0.5Sr alloy treated by Li element addition and extruded deformation has great potential for application in the field of bone repair.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"338 ","pages":"Article 130664"},"PeriodicalIF":4.3,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143563135","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-03-03DOI: 10.1016/j.matchemphys.2025.130666
N. Benaissa , T. Garmim , Z. El Jouad , A. Louardi , A. Talbi , A. Rmili , A. El Bachiri , K. Nouneh , M. Monkade
This study focuses on the synthesis of CuO (Copper Oxide) thin films via the spray pyrolysis method, along with the optimization of parameters affecting the experimental process. Using the Taguchi design with an L9(33) orthogonal array, we systematically investigated the influence of three critical controllable parameters on the deposition process. These parameters included the cadmium doping percentage, the substrate temperature, and the precursor molar concentration. The Taguchi method was chosen for its efficiency in experimental design, allowing us to study the effects of multiple variables simultaneously with a reduced number of experiments. For each factor, three levels were predefined to represent distinct conditions, ensuring a comprehensive exploration of their individual and interactive impacts on the process. The signal-to-noise (S/N) ratio is used to minimize variation and identify the optimal parameter combination that ensures the desired optical band gap is achieved. The obtained deposited thin film under optimal conditions exhibit a uniform and pure CuO monoclinic structure. Raman spectroscopy unveiled distinct modes characteristic of affirming the composition of CuO. Additionally, the CuO film showed an optical bandgap value of 1.53 eV.
{"title":"Synthesis of Cadmium doped CuO thin films via spray pyrolysis and optimization of the optical band gap using Taguchi approach","authors":"N. Benaissa , T. Garmim , Z. El Jouad , A. Louardi , A. Talbi , A. Rmili , A. El Bachiri , K. Nouneh , M. Monkade","doi":"10.1016/j.matchemphys.2025.130666","DOIUrl":"10.1016/j.matchemphys.2025.130666","url":null,"abstract":"<div><div>This study focuses on the synthesis of CuO (Copper Oxide) thin films via the spray pyrolysis method, along with the optimization of parameters affecting the experimental process. Using the Taguchi design with an L<sub>9</sub>(3<sup>3</sup>) orthogonal array, we systematically investigated the influence of three critical controllable parameters on the deposition process. These parameters included the cadmium doping percentage, the substrate temperature, and the precursor molar concentration. The Taguchi method was chosen for its efficiency in experimental design, allowing us to study the effects of multiple variables simultaneously with a reduced number of experiments. For each factor, three levels were predefined to represent distinct conditions, ensuring a comprehensive exploration of their individual and interactive impacts on the process. The signal-to-noise (S/N) ratio is used to minimize variation and identify the optimal parameter combination that ensures the desired optical band gap is achieved. The obtained deposited thin film under optimal conditions exhibit a uniform and pure CuO monoclinic structure. Raman spectroscopy unveiled distinct modes characteristic of affirming the composition of CuO. Additionally, the CuO film showed an optical bandgap value of 1.53 eV.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"338 ","pages":"Article 130666"},"PeriodicalIF":4.3,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143551197","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-03-03DOI: 10.1016/j.matchemphys.2025.130662
V. Uday Kumar , M. Vidhish Naik , P. Chakravarthy , R. Arockia Kumar
Zinc-based alloys are emerging as potential alternatives to Mg and Fe-based biodegradable alloys. However, zinc's relatively poor mechanical properties must be enhanced to make it suitable for biodegradable implant applications. Therefore, efforts are being made to improve the mechanical properties of zinc through alloying and deformation processing. This study focuses on the effect of adding manganese (Mn) and copper (Cu) to zinc, as well as the influence of extrusion temperature, on its mechanical properties. The as-cast Zn, Zn-0.8Mn, and Zn-0.8Mn-0.8Cu (wt.%) alloys were cast and extruded at varying temperatures of 200, 250, and 300 °C. The hardness, elastic modulus, tensile strength, and compressive strength of the extruded alloys were compared to those of pure zinc. The elastic modulus of the as-cast Zn and its alloys was approximately 86 GPa, which increased to 125 GPa after hot extrusion. This notable increase in modulus is attributed to the texture developed during the hot extrusion process. Alloying addition, perse increased the hardness of zinc by 44–61 %. At the same time, samples subjected to hot extrusion were observed to have less hardness than the as-cast counterparts. The influence of extrusion temperature on hardness was insignificant. Adding Mn and Cu improved the compressive yield strength of zinc (43–145 MPa, i.e. 239 %). The zinc's compressive yield strength increased by 258 % after hot extrusion, but it is just 28–47 % for the alloys. Whereas tensile strength of zinc has been increased by 125 % through alloying and hot extrusion. Amongst the various alloys tested, the binary alloy Zn-0.8Mn phenomenally exhibited 48–74 % of ductility after the hot-extrusion. The degradation rate in simulated body fluid was evaluated through electrochemical tests. The hot-extruded materials exhibited higher corrosion rates (0.141–0.681 mm/year) than the as-cast counterparts (0.036–0.325 mm/year).
{"title":"Effects of alloying and extrusion temperatures on the microstructure, mechanical properties, and biodegradability of zinc alloys","authors":"V. Uday Kumar , M. Vidhish Naik , P. Chakravarthy , R. Arockia Kumar","doi":"10.1016/j.matchemphys.2025.130662","DOIUrl":"10.1016/j.matchemphys.2025.130662","url":null,"abstract":"<div><div>Zinc-based alloys are emerging as potential alternatives to Mg and Fe-based biodegradable alloys. However, zinc's relatively poor mechanical properties must be enhanced to make it suitable for biodegradable implant applications. Therefore, efforts are being made to improve the mechanical properties of zinc through alloying and deformation processing. This study focuses on the effect of adding manganese (Mn) and copper (Cu) to zinc, as well as the influence of extrusion temperature, on its mechanical properties. The as-cast Zn, Zn-0.8Mn, and Zn-0.8Mn-0.8Cu (wt.%) alloys were cast and extruded at varying temperatures of 200, 250, and 300 °C. The hardness, elastic modulus, tensile strength, and compressive strength of the extruded alloys were compared to those of pure zinc. The elastic modulus of the as-cast Zn and its alloys was approximately 86 GPa, which increased to 125 GPa after hot extrusion. This notable increase in modulus is attributed to the texture developed during the hot extrusion process. Alloying addition, perse increased the hardness of zinc by 44–61 %. At the same time, samples subjected to hot extrusion were observed to have less hardness than the as-cast counterparts. The influence of extrusion temperature on hardness was insignificant. Adding Mn and Cu improved the compressive yield strength of zinc (43–145 MPa, i.e. 239 %). The zinc's compressive yield strength increased by 258 % after hot extrusion, but it is just 28–47 % for the alloys. Whereas tensile strength of zinc has been increased by 125 % through alloying and hot extrusion. Amongst the various alloys tested, the binary alloy Zn-0.8Mn phenomenally exhibited 48–74 % of ductility after the hot-extrusion. The degradation rate in simulated body fluid was evaluated through electrochemical tests. The hot-extruded materials exhibited higher corrosion rates (0.141–0.681 mm/year) than the as-cast counterparts (0.036–0.325 mm/year).</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"338 ","pages":"Article 130662"},"PeriodicalIF":4.3,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143577733","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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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