Pub Date : 2025-04-19DOI: 10.1016/j.matlet.2025.138581
M.Meenakshi Sundari , A. Jegatheesan , R. Mohan , M.Sam Arul Raj , N.Ambika Devi , P. Ravikumar , M. Ayyanar , K. Ravichandran
Chitosan (CS) is a natural polysaccharide with significant potential for biological applications. This study aims to extract chitosan from crab shell (Portunus trituberculatus) waste through a series of processes including demineralization, deproteinization, and deacetylation. The crystallinity index and deacetylation degree (DD) were determined, and the chitosan was characterized using several analytical techniques, viz. XRD, FTIR, Raman spectroscopy and SEM with EDS. The crab shell derived chitosan exhibits significant antioxidant, antidiabetic and anti-inflammatory properties. The CS showed 90.35 % inhibition in ABTS free radical scavenging assays and showed 88.40 % of inhibition against the alpha glucosidase enzyme. It also showed an anti-inflammation potential with the IC50 value of 132.72 ± 1.36 µg/mL. Furthermore, the cytotoxicity test of the CS against MCF – 7 cell line exhibited an IC50 value of 22.86 ± 0.05 µg/mL.
{"title":"Exploring the bioactive potential of chitosan extracted from Portunus trituberculatus crab shell for multifaceted applications: Antioxidant, antidiabetic, anti-inflammatory and cytotoxic activities","authors":"M.Meenakshi Sundari , A. Jegatheesan , R. Mohan , M.Sam Arul Raj , N.Ambika Devi , P. Ravikumar , M. Ayyanar , K. Ravichandran","doi":"10.1016/j.matlet.2025.138581","DOIUrl":"10.1016/j.matlet.2025.138581","url":null,"abstract":"<div><div>Chitosan (CS) is a natural polysaccharide with significant potential for biological applications. This study aims to extract chitosan from crab shell <em>(Portunus trituberculatus)</em> waste through a series of processes including demineralization, deproteinization, and deacetylation. The crystallinity index and deacetylation degree (DD) were determined, and the chitosan was characterized using several analytical techniques, <em>viz.</em> XRD, FTIR, Raman spectroscopy and SEM with EDS. The crab shell derived chitosan exhibits significant antioxidant, antidiabetic and anti-inflammatory properties. The CS showed 90.35 % inhibition in ABTS free radical scavenging assays and showed 88.40 % of inhibition against the alpha glucosidase enzyme. It also showed an anti-inflammation potential with the IC<sub>50</sub> value of 132.72 ± 1.36 µg/mL. Furthermore, the cytotoxicity test of the CS against MCF – 7 cell line exhibited an IC<sub>50</sub> value of 22.86 ± 0.05 µg/mL.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"393 ","pages":"Article 138581"},"PeriodicalIF":2.7,"publicationDate":"2025-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143855565","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}
Pub Date : 2025-04-19DOI: 10.1016/j.matlet.2025.138607
Xiangrong Cao , Heng Wu , Longkai Pan , Minggang Zhang , Peng Chang
Zinc ion batteries (ZIBs) are candidates for high-safety energy storage devices. However, the competitive cathode materials with high energy density and stability are still challenging. Herein, a novel cathode, amorphous Zn-Mn-O compound (A-Zn2MnO4) with enhanced phase ability has been proposed. The A-Zn2MnO4 demonstrates superior capacity (432.6mAh g−1 at 0.2 A g−1). Furthermore, the A-Zn2MnO4 can increase with the cycle time and reach a capacity of 270mAh g−1 at 0.6 A g−1 (97 % improvement over the first cycle) due to its’ enhanced phase changeability. This work reports an original A-Zn2MnO4 cathode, which can be prepared by a simple coprecipitation method at room temperature, providing a potential new option for advanced ZIBs cathode materials.
{"title":"Simple preparation route of amorphous Zn-Mn-O compound with enhanced phase changeability as a high-capacity cathode for zinc ion batteries","authors":"Xiangrong Cao , Heng Wu , Longkai Pan , Minggang Zhang , Peng Chang","doi":"10.1016/j.matlet.2025.138607","DOIUrl":"10.1016/j.matlet.2025.138607","url":null,"abstract":"<div><div>Zinc ion batteries (ZIBs) are candidates for high-safety energy storage devices. However, the competitive cathode materials with high energy density and stability are still challenging. Herein, a novel cathode, amorphous Zn-Mn-O compound (A-Zn<sub>2</sub>MnO<sub>4</sub>) with enhanced phase ability has been proposed. The A-Zn<sub>2</sub>MnO<sub>4</sub> demonstrates superior capacity (432.6mAh g<sup>−1</sup> at 0.2 A g<sup>−1</sup>). Furthermore, the A-Zn<sub>2</sub>MnO<sub>4</sub> can increase with the cycle time and reach a capacity of 270mAh g<sup>−1</sup> at 0.6 A g<sup>−1</sup> (97 % improvement over the first cycle) due to its’ enhanced phase changeability. This work reports an original A-Zn<sub>2</sub>MnO<sub>4</sub> cathode, which can be prepared by a simple coprecipitation method at room temperature, providing a potential new option for advanced ZIBs cathode materials.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"393 ","pages":"Article 138607"},"PeriodicalIF":2.7,"publicationDate":"2025-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143863990","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}
Pub Date : 2025-04-18DOI: 10.1016/j.matlet.2025.138606
Gabriel Bernardo , Adélio Mendes , Steven R. Parnell
P3HT is a semiconducting polymer widely used in solution-processable photovoltaic research. Measuring the solubility of P3HT in organic solvents is usually an arduous and time-consuming process. Here we report the presence or absence of P3HT nanoparticle agglomeration in optically opaque solutions of P3HT, with concentrations ranging from 6.2 to 22.0 mg·mL−1, in pure chloroform and in chloroform:acetone mixtures, using the neutron scattering technique, Spin-Echo Small Angle Neutron Scattering (SESANS). We demonstrate in-situ that the solubility of P3HT decreases from ∼ 22.0 mg/mL to < 6.2 mg/mL when the amount of acetone in solution increases from 0 vol% to 60 vol%. This work uses the ability of SESANS to probe P3HT nanoparticle aggregates, with dimensions ranging from ∼ 1 to several microns, in P3HT solutions with concentrations above the solubility limit.
{"title":"Solubility of P3HT in chloroform and chloroform:acetone mixtures: A spin-echo SANS study","authors":"Gabriel Bernardo , Adélio Mendes , Steven R. Parnell","doi":"10.1016/j.matlet.2025.138606","DOIUrl":"10.1016/j.matlet.2025.138606","url":null,"abstract":"<div><div>P3HT is a semiconducting polymer widely used in solution-processable photovoltaic research. Measuring the solubility of P3HT in organic solvents is usually an arduous and time-consuming process. Here we report the presence or absence of P3HT nanoparticle agglomeration in optically opaque solutions of P3HT, with concentrations ranging from 6.2 to 22.0 mg·mL<sup>−1</sup>, in pure chloroform and in chloroform:acetone mixtures, using the neutron scattering technique, Spin-Echo Small Angle Neutron Scattering (SESANS). We demonstrate <em>in-situ</em> that the solubility of P3HT decreases from ∼ 22.0 mg/mL to < 6.2 mg/mL when the amount of acetone in solution increases from 0 vol% to 60 vol%. This work uses the ability of SESANS to probe P3HT nanoparticle aggregates, with dimensions ranging from ∼ 1 to several microns, in P3HT solutions with concentrations above the solubility limit.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"393 ","pages":"Article 138606"},"PeriodicalIF":2.7,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143863989","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}
Pub Date : 2025-04-18DOI: 10.1016/j.matlet.2025.138603
Shenglong Liu , Yuanlong Li , Yiyu Liu , Zhengqiao Li , Lei Qin , Hua Wu , Ying Xing
Two-dimensional (2D) superconductor-ferromagnet van der Waals heterostructures have recently arisen wide research interests in low dimensional devices on spintronics and quantum computation. However, the synthesis of atomically thin heterostructures is quite challenging. In this paper, we have successfully synthesized superconducting NbSe2 flakes and ferromagnetic VSe2 flakes, and then stacked NbSe2-VSe2 heterostructures by a two-step chemical vapor deposition (CVD) method. On step one, large and smooth NbSe2 flakes were obtained on sapphire substrate. On the second step, we achieve heteroepitaxy growth of VSe2 on the NbSe2 surface. This work broadens the field of TMDs based van der Waals heterostructures and provides a potential platform for exploring topological superconductivity.
{"title":"Growth of 2D van der Waals superconductor-ferromagnet NbSe2-VSe2 heterostructure by CVD method","authors":"Shenglong Liu , Yuanlong Li , Yiyu Liu , Zhengqiao Li , Lei Qin , Hua Wu , Ying Xing","doi":"10.1016/j.matlet.2025.138603","DOIUrl":"10.1016/j.matlet.2025.138603","url":null,"abstract":"<div><div>Two-dimensional (2D) superconductor-ferromagnet van der Waals heterostructures have recently arisen wide research interests in low dimensional devices on spintronics and quantum computation. However, the synthesis of atomically thin heterostructures is quite challenging. In this paper, we have successfully synthesized superconducting NbSe<sub>2</sub> flakes and ferromagnetic VSe<sub>2</sub> flakes, and then stacked NbSe<sub>2</sub>-VSe<sub>2</sub> heterostructures by a two-step chemical vapor deposition (CVD) method. On step one, large and smooth NbSe<sub>2</sub> flakes were obtained on sapphire substrate. On the second step, we achieve heteroepitaxy growth of VSe<sub>2</sub> on the NbSe<sub>2</sub> surface. This work broadens the field of TMDs based van der Waals heterostructures and provides a potential platform for exploring topological superconductivity.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"393 ","pages":"Article 138603"},"PeriodicalIF":2.7,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143852182","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}
To investigate the effects of ultrasonic vibration (UV) on mechanical properties and microstructure evolution of Ti-6Al-4V alloy manufactured by laser direct energy deposition, a series of experiments have been carried out by the INSTRON testing machine, scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The results demonstrate that UV significantly enhances the plasticity of Ti-6Al-4V alloy, with an increase in elongation by 87.4 % and tensile strength by 4.04 %. And the phenomenon of HCP-FCC phase transformation of Ti-6Al-4V alloy has been found during additive manufacturing under the UV. The formation of FCC nano-twinned phase contributes to the enhancement of the mechanical properties of Ti-6Al-4V alloy to some extent.
{"title":"Effects of ultrasonic vibration on mechanical properties and microstructure evolution of Ti-6Al-4V alloy manufactured by laser direct energy deposition","authors":"Chunhuan Guo , Hanyu Yin , Wei Chen , Fengchun Jiang","doi":"10.1016/j.matlet.2025.138600","DOIUrl":"10.1016/j.matlet.2025.138600","url":null,"abstract":"<div><div>To investigate the effects of ultrasonic vibration (UV) on mechanical properties and microstructure evolution of Ti-6Al-4V alloy manufactured by laser direct energy deposition, a series of experiments have been carried out by the INSTRON testing machine, scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The results demonstrate that UV significantly enhances the plasticity of Ti-6Al-4V alloy, with an increase in elongation by 87.4 % and tensile strength by 4.04 %. And the phenomenon of HCP-FCC phase transformation of Ti-6Al-4V alloy has been found during additive manufacturing under the UV. The formation of FCC nano-twinned phase contributes to the enhancement of the mechanical properties of Ti-6Al-4V alloy to some extent.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"393 ","pages":"Article 138600"},"PeriodicalIF":2.7,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143850842","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}
Pub Date : 2025-04-18DOI: 10.1016/j.matlet.2025.138604
Changhyun (Lyon) Nam , Kwangeun Kim
GaAs/Si tunnel diodes (TDs) were achieved on recycled polypropylene (PP) substrates through crystalline nanomembrane (NM) stacking. Crystalline NM-based GaAs/Si TDs were constructed on the UV/O3-treated PP substrate by the combination of NM and TD stacking. Conduction regions of band-to-band tunneling, negative differential resistance, and thermionic emission were revealed by electrical characterization of the GaAs/Si/PP TDs. The peak-to-valley current ratios of GaAs/Si/PP TDs (2.15, 1.92, and 2.03) were determined to be comparable to those of conventional epitaxial and direct-bonded TDs. These findings demonstrated the sustainable capability of recycled PP substrates in the development of crystalline NM-based tunneling devices.
{"title":"Stacked crystalline nanomembrane GaAs/Si tunnel diodes on polypropylene substrates derived from disposable masks","authors":"Changhyun (Lyon) Nam , Kwangeun Kim","doi":"10.1016/j.matlet.2025.138604","DOIUrl":"10.1016/j.matlet.2025.138604","url":null,"abstract":"<div><div>GaAs/Si tunnel diodes (TDs) were achieved on recycled polypropylene (PP) substrates through crystalline nanomembrane (NM) stacking. Crystalline NM-based GaAs/Si TDs were constructed on the UV/O<sub>3</sub>-treated PP substrate by the combination of NM and TD stacking. Conduction regions of band-to-band tunneling, negative differential resistance, and thermionic emission were revealed by electrical characterization of the GaAs/Si/PP TDs. The peak-to-valley current ratios of GaAs/Si/PP TDs (2.15, 1.92, and 2.03) were determined to be comparable to those of conventional epitaxial and direct-bonded TDs. These findings demonstrated the sustainable capability of recycled PP substrates in the development of crystalline NM-based tunneling devices.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"393 ","pages":"Article 138604"},"PeriodicalIF":2.7,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143850843","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}
Additive manufacturing (AM) has become a crucial technique for fabricating high-performance superalloys. K447A, a promising candidate for high-temperature applications, exhibits significant cracking issues during AM processing. In this study, a mixture of K447A and IN718 powders was processed via selective laser melting (SLM) to enhance mechanical properties and minimize cracking. The optimal composition was identified as KI28 (20% K447A, 80% IN718). Microstructural analysis revealed that KI28 exhibited the smallest laser melt pool area and a short-chain Laves phase morphology, reducing crack formation. Additionally, mechanical testing demonstrated that the increased IN718 content improved tensile strength and ductility. These findings provide valuable insights for optimizing Ni-based superalloys through AM processing.
{"title":"Microstructures and properties of selective laser melted K447A/IN718 Ni-based superalloy composites","authors":"Yu Zhang , Zhen Ding , Bing Tian , Fengchun Jiang , Mehrdad Zarinejad , Yunxiang Tong","doi":"10.1016/j.matlet.2025.138598","DOIUrl":"10.1016/j.matlet.2025.138598","url":null,"abstract":"<div><div>Additive manufacturing (AM) has become a crucial technique for fabricating high-performance superalloys. K447A, a promising candidate for high-temperature applications, exhibits significant cracking issues during AM processing. In this study, a mixture of K447A and IN718 powders was processed via selective laser melting (SLM) to enhance mechanical properties and minimize cracking. The optimal composition was identified as KI28 (20% K447A, 80% IN718). Microstructural analysis revealed that KI28 exhibited the smallest laser melt pool area and a short-chain Laves phase morphology, reducing crack formation. Additionally, mechanical testing demonstrated that the increased IN718 content improved tensile strength and ductility. These findings provide valuable insights for optimizing Ni-based superalloys through AM processing.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"393 ","pages":"Article 138598"},"PeriodicalIF":2.7,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143860184","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}
Pub Date : 2025-04-18DOI: 10.1016/j.matlet.2025.138574
Zhiyuan Lu , Yongjiao Sun , Bingliang Wang , Yuchen Hou , Wenyuan Zhao , Zihan Wei , Wendong Zhang , Koichi Suematsu , Jie Hu
In this work, two-dimensional (2D) conductive metal–organic frameworks Mg3(HITP)2 nanosheet functionalized with MoS2 and Pd NPs hybrid structures were synthesized toward NO2 detection under ultrahigh humid atmosphere at room temperature (RT). The morphology, chemical state and element composition were systematically investigated by different methods, and gas sensing experiments were conducted on the as-proposed sensors toward NO2 at RT under 95 %RH. Obviously, the optimum Pd1/Mo10/MgHI sensor exhibits high response, good linearity, excellent selectivity and repeatability, and the measured response can reach to 55 toward 100 ppm NO2, which is almost two times higher than that of Mo10/MgHI sensor (28). The enhanced NO2 sensing performance can be attributed to the synergistic effect between the interfaces of the sensing nanocomponents, which opens a new way for detecting NO2 under ultrahigh humid environment at RT.
{"title":"Synthesis and gas sensing properties of MoS2 and Pd NPs functionalized conductive Mg3(HITP)2 hybrid structures toward NO2 detection in ultrahigh humidity environment at room temperature","authors":"Zhiyuan Lu , Yongjiao Sun , Bingliang Wang , Yuchen Hou , Wenyuan Zhao , Zihan Wei , Wendong Zhang , Koichi Suematsu , Jie Hu","doi":"10.1016/j.matlet.2025.138574","DOIUrl":"10.1016/j.matlet.2025.138574","url":null,"abstract":"<div><div>In this work, two-dimensional (2D) conductive metal–organic frameworks Mg<sub>3</sub>(HITP)<sub>2</sub> nanosheet functionalized with MoS<sub>2</sub> and Pd NPs hybrid structures were synthesized toward NO<sub>2</sub> detection under ultrahigh humid atmosphere at room temperature (RT). The morphology, chemical state and element composition were systematically investigated by different methods, and gas sensing experiments were conducted on the as-proposed sensors toward NO<sub>2</sub> at RT under 95 %RH. Obviously, the optimum Pd<sub>1</sub>/Mo<sub>10</sub>/MgHI sensor exhibits high response, good linearity, excellent selectivity and repeatability, and the measured response can reach to 55 toward 100 ppm NO<sub>2</sub>, which is almost two times higher than that of Mo<sub>10</sub>/MgHI sensor (28). The enhanced NO<sub>2</sub> sensing performance can be attributed to the synergistic effect between the interfaces of the sensing nanocomponents, which opens a new way for detecting NO<sub>2</sub> under ultrahigh humid environment at RT.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"394 ","pages":"Article 138574"},"PeriodicalIF":2.7,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143869982","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}
In this work, a high-performance Joule heater is proposed, which is composed of LIG as the heating layer and medical band-aids as the substrate. Thanks to the sodium lignosulfonate as carbon source, laser-induced graphene (LIG), is successfully prepared on the medical band-aids. The Joule heater exhibits remarkable electrothermal performance, capable of reaching a high temperature of 96.6 °C at a low operating voltage of 8 V. The band-aid-assisted LIG-based Joule heater is demonstrated for thermotherapy applications, showing good heating temperature controllability. This work can provide a solution for the development of comfortable LIG-based flexible electronics based on medical band-aids.
{"title":"Band-aid-assisted Joule heater based on laser-induced graphene for thermotherapy applications","authors":"Yexiong Huang, Zikai Bao, Tingyu Liu, Chunxin Hao, Xinyuan Wang, Jinmin Li","doi":"10.1016/j.matlet.2025.138602","DOIUrl":"10.1016/j.matlet.2025.138602","url":null,"abstract":"<div><div>In this work, a high-performance Joule heater is proposed, which is composed of LIG as the heating layer and medical band-aids as the substrate. Thanks to the sodium lignosulfonate as carbon source, laser-induced graphene (LIG), is successfully prepared on the medical band-aids. The Joule heater exhibits remarkable electrothermal performance, capable of reaching a high temperature of 96.6 °C at a low operating voltage of 8 V. The band-aid-assisted LIG-based Joule heater is demonstrated for thermotherapy applications, showing good heating temperature controllability. This work can provide a solution for the development of comfortable LIG-based flexible electronics based on medical band-aids.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"393 ","pages":"Article 138602"},"PeriodicalIF":2.7,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143847849","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}
Pub Date : 2025-04-18DOI: 10.1016/j.matlet.2025.138599
Lin Fu , Hongjie Jiang , Kai Huang , Hao Cheng , Chongyu Liu , Hongfeng Huang , Shuhui Liu
FSP-ZA27/7075Al composites with enhanced high-temperature damping capacity were fabricated using friction stir processing. The interface bonding between the ZA27 and 7075Al alloys is strong, with no apparent defects or new phase formation in the composites. The improved damping capacity and comprehensive damping index of the composites, in comparison to the 7075Al alloy, result from the contributions of grain refinement and the inherent damping capacity of the reinforcement phase. At 300 °C, the internal friction value of the composites is 798 % and 1258 % greater than that of FSP-7075Al and 7075-T651 Al alloys, respectively. At 275 °C, the composites show internal friction peaks similar to those of the ZA27 alloy.
{"title":"Microstructure and damping capacity of high-temperature damping ZA27/7075Al composites prepared by friction stir processing","authors":"Lin Fu , Hongjie Jiang , Kai Huang , Hao Cheng , Chongyu Liu , Hongfeng Huang , Shuhui Liu","doi":"10.1016/j.matlet.2025.138599","DOIUrl":"10.1016/j.matlet.2025.138599","url":null,"abstract":"<div><div>FSP-ZA27/7075Al composites with enhanced high-temperature damping capacity were fabricated using friction stir processing. The interface bonding between the ZA27 and 7075Al alloys is strong, with no apparent defects or new phase formation in the composites. The improved damping capacity and comprehensive damping index of the composites, in comparison to the 7075Al alloy, result from the contributions of grain refinement and the inherent damping capacity of the reinforcement phase. At 300 °C, the internal friction value of the composites is 798 % and 1258 % greater than that of FSP-7075Al and 7075-T651 Al alloys, respectively. At 275 °C, the composites show internal friction peaks similar to those of the ZA27 alloy.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"393 ","pages":"Article 138599"},"PeriodicalIF":2.7,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143847850","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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