Journal of Alloys and Compounds最新文献_第10页

Substrate orientation-controlled photoelectric properties of 213-nm GeO2 solar blind photodetectors 213-nm GeO2太阳盲光电探测器的衬底取向控制光电性能

IF 6.2 2区材料科学

Journal of Alloys and Compounds Pub Date : 2025-07-19 DOI: 10.1016/j.jallcom.2025.182360

Chengming Wei, Jiabao Liu, Chen Guo, Jiabao Hu, Lingdong Wang, Shuxian Zang, Xingyu Liu, Yang Chen, Shuiping Huang, Fabi Zhang, Xu Wang

{"title":"Substrate orientation-controlled photoelectric properties of 213-nm GeO2 solar blind photodetectors","authors":"Chengming Wei, Jiabao Liu, Chen Guo, Jiabao Hu, Lingdong Wang, Shuxian Zang, Xingyu Liu, Yang Chen, Shuiping Huang, Fabi Zhang, Xu Wang","doi":"10.1016/j.jallcom.2025.182360","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.182360","url":null,"abstract":"GeO2 is recognized as an ultra-wide bandgap semiconductor with high thermal conductivity and carrier mobility, possessing the great development potential in the solar blind photodetection field. During the deposition, selected substrates with different lattice orientations can cause variations in physical properties of GeO2 films, thereby influencing the performance of the GeO2 solar blind photodetector (SBPD). Here, GeO2 films were deposited on m and r-plane sapphire substrates using the magnetron sputtering method and 213-nm SBPDs have been developed by selecting the high-temperature annealed GeO2 films. The GeO2 SBPD fabricated on m-plane sapphire substrate exhibits more excellent performances including faster rise and fall times of 8.09 and 8.15 ms, a higher photo-dark current ratio of 237.03, a larger photoresponsivity of 2.76 A/W, and a higher detectivity of 1.87 × 1014 Jones. By constructing energy band structures of GeO2 SBPDs, excellent device performances can be attributed to the less migration energy requirement induced by small band barriers. Moreover, it is also demonstrated the existence of the built-in electric field and the smaller lattice mismatch further improve the GeO2 SBPD performance. Experimental results demonstrate effects of substrate orientation-controlled photoelectric properties of 213-nm GeO2 SBPDs, providing a new option for solar blind detection applications.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"52 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144664666","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Reactive Ball Milling-Induced Improvement in Hydrogen Storage Performance of Mg-Co Alloys 反应球磨对Mg-Co合金储氢性能的改善

IF 6.2 2区材料科学

Journal of Alloys and Compounds Pub Date : 2025-07-19 DOI: 10.1016/j.jallcom.2025.182230

Haiqiang Bai, Biao Liu, Ling Kang, Yanhong Wang, Jing Bai, Santosh Kumar Verma, Yunhua Xu

{"title":"Reactive Ball Milling-Induced Improvement in Hydrogen Storage Performance of Mg-Co Alloys","authors":"Haiqiang Bai, Biao Liu, Ling Kang, Yanhong Wang, Jing Bai, Santosh Kumar Verma, Yunhua Xu","doi":"10.1016/j.jallcom.2025.182230","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.182230","url":null,"abstract":"The ability of magnesium-based hydrogen storage materials to store and release hydrogen is hampered by their relatively slow rates. To address this, Mg-x% Co (x = 5, 10, 15) magnesium-rich hydrogen storage alloys were fabricated using reactive ball milling. The resulting alloys were multiphase, composed of Mg, Co, MgCo₂, and Mg₂CoH₅, which provided nucleation sites and improved hydrogen uptake. The reduced particle size and surface microcracks and pores enhanced hydrogen diffusion. The Mg-15%Co alloy had the ability to take in 4.72 wt.% hydrogen in 1 minute when the temperature was set at 350°C. Hydrogenation resulted in the formation of a biphasic structure composed of Mg₂CoH₅ and Mg₆Co₂H₁₁. This structure destabilized the Mg-H bond and improved the kinetics of hydrogen release. The hydrogen release capacity first increased and then decreased with Co content, with Mg-10%Co showing the best performance. Due to the combined action of ball milling and Co catalysis, the Mg-10%Co alloy had an activation energy for hydrogen release of 113.65 kJ/mol, making it the alloy with the lowest such activation energy in the set. Differential scanning calorimetry (DSC) analysis confirms that cobalt addition reduces the hydrogen release peak temperature of Mg by 16.58–29.67 °C, with the Mg-10% Co alloy exhibiting peak temperatures of 410.72–425.53 °C, attributed to synergistic decomposition of MgH₂ with intermediate hydrides like Mg₂CoH₅ and Mg₆Co₂H₁₁. The findings of this study indicate that alloying Mg-based alloys with transition elements while performing ball milling is a practical method for enhancing their hydrogen storage and release kinetics.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"9 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144664336","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dual-action synergistic enhancement of photothermoelectric properties of PEDOT:PSS films via black phosphorus 黑磷双作用协同增强PEDOT:PSS薄膜的光热电性能

IF 6.2 2区材料科学

Journal of Alloys and Compounds Pub Date : 2025-07-19 DOI: 10.1016/j.jallcom.2025.182358

Mengting Liu, Xiaoqi Lan, Huixuan Liu, Yifeng Hou, Cheng Liu, Congcong Liu, Xiaodong Wang, Jingkun Xu, Fengxing Jiang

{"title":"Dual-action synergistic enhancement of photothermoelectric properties of PEDOT:PSS films via black phosphorus","authors":"Mengting Liu, Xiaoqi Lan, Huixuan Liu, Yifeng Hou, Cheng Liu, Congcong Liu, Xiaodong Wang, Jingkun Xu, Fengxing Jiang","doi":"10.1016/j.jallcom.2025.182358","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.182358","url":null,"abstract":"Photothermoelectric materials convert light energy into electrical energy based on the photothermal effect and thermoelectric effect, enabling the utilization of multiple energy sources and enhancing energy utilization efficiency. However, the performance of photothermoelectric materials is often constrained by their photothermal and thermoelectric properties. PEDOT:PSS has excellent thermoelectric properties and significant absorption in the NIR region. Nevertheless, its relatively low light conversion efficiency limits its development in the field of photothermoelectric applications. Herein, the black phosphorus nanosheets were introduced to effectively improve the photothermoelectric properties of PEDOT:PSS. The introduction of Black phosphorus was found to enhance the photothermal conversion performance of the film, which could be attributed to the improved light absorption. Additionally, the energy filtering effect at the interface between Black phosphorus and PEDOT:PSS improves the thermoelectric properties of films. The dual effect of Black phosphorus has greatly improved the photothermoelectric properties of PEDOT:PSS, and the power factor of the composite film under light is approximately 4-fold that of PEDOT:PSS film. The dual enhancement of the photothermal and thermoelectric properties in PEDOT:PSS through the incorporation of Black phosphorus provides a new strategy for developing high-performance Photothermoelectric materials.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"10 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144664454","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Gradient Hydrogen Bonding-Reinforced Peach Gum/Polyacrylic Acid Binder Enables Commercialization Breakthrough for Chemical Vapor Deposition Silicon-Carbon Anodes 梯度氢键增强桃胶/聚丙烯酸粘合剂实现化学气相沉积硅碳阳极的商业化突破

IF 6.2 2区材料科学

Journal of Alloys and Compounds Pub Date : 2025-07-19 DOI: 10.1016/j.jallcom.2025.182380

Zuxue Mo, Hua Fan, Yilong Wu, Zhenjun Zhang, Xiangyong Xue, Haiqing Qin, Anjun Lu, Mingyang Luo, Haowen Jiang

{"title":"Gradient Hydrogen Bonding-Reinforced Peach Gum/Polyacrylic Acid Binder Enables Commercialization Breakthrough for Chemical Vapor Deposition Silicon-Carbon Anodes","authors":"Zuxue Mo, Hua Fan, Yilong Wu, Zhenjun Zhang, Xiangyong Xue, Haiqing Qin, Anjun Lu, Mingyang Luo, Haowen Jiang","doi":"10.1016/j.jallcom.2025.182380","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.182380","url":null,"abstract":"This study aligns with the trend in silicon-carbon anode development by synthesizing commercial chemical vapor deposition silicon-carbon (CVD Si/C) anode materials and innovatively incorporating peach gum polysaccharide (PG) with polyacrylic acid (PAA) and single-walled carbon nanotubes (SWCNTs) to fabricate Si/C@PGS electrodes with superior long-term cycling stability. Through comprehensive material characterization and density functional theory (DFT) calculations, the mechanisms underlying the enhanced cycling stability of the electrodes are elucidated. Electrochemical tests demonstrate that Si/C@PGS electrodes maintain a high-capacity retention rate of 88.4% after 200 cycles at 0.1 C. The electrodes were also successfully integrated into commercial pouch cells, achieving stable cycling for over 1600 cycles under 1 C charge and 2 C discharge conditions. This research offers a potential solution for the practical application of high-energy-density lithium-ion batteries.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"10 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144664665","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nanoprecipitate-mediated magnetic domain wall pinning and enhanced magnetocrystalline anisotropy via trace holmium doping in Fe3Ga alloys 纳米沉淀介导的Fe3Ga合金磁畴壁钉钉及微量钬掺杂增强磁晶各向异性

IF 6.2 2区材料科学

Journal of Alloys and Compounds Pub Date : 2025-07-19 DOI: 10.1016/j.jallcom.2025.182144

Yuying Liu, Jiaqi Su, Minghang Li, Binye Liang, Botao Jiang, Xinzhe Hu, Yunzhong Chen, Zian Li

{"title":"Nanoprecipitate-mediated magnetic domain wall pinning and enhanced magnetocrystalline anisotropy via trace holmium doping in Fe3Ga alloys","authors":"Yuying Liu, Jiaqi Su, Minghang Li, Binye Liang, Botao Jiang, Xinzhe Hu, Yunzhong Chen, Zian Li","doi":"10.1016/j.jallcom.2025.182144","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.182144","url":null,"abstract":"This study investigates the influence of trace holmium (Ho) doping on the microstructural and magnetic properties of (Fe0.75Ga0.25)99.7Ho0.3 alloys through advanced transmission electron microscopy (TEM) techniques, with a particular emphasis on directly correlating microstructure-magnetism. Lorentz TEM and off-axis electron holography (OAEH) analyses demonstrate that Ho incorporation induces the formation of nanoprecipitates, which facilitate grain refinement and serve as effective domain-wall pinning centers, thereby significantly restricting domain wall mobility. These microstructural modifications result in a slow magnetic response at low applied fields and enhanced magnetocrystalline anisotropy, as corroborated by quantitative assessments of domain wall width derived from holographic data. Our findings demonstrate that trace rare-earth doping serves as an effective strategy for engineering microstructures and tailoring magnetocrystalline anisotropy for optimized magnetic properties of Fe3Ga alloys. Concurrently, we demonstrate the capability of advanced TEM-based magnetic imaging to resolve nanoscale magnetic behavior, including real-time domain wall motion and spatially resolved anisotropy energy quantification.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"24 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144664669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ultrafast healing of micro-pores in cold-sprayed CuCrZr-W composite coatings via high-frequency induction heating 高频感应加热冷喷涂CuCrZr-W复合涂层微孔的超快愈合

IF 6.2 2区材料科学

Journal of Alloys and Compounds Pub Date : 2025-07-19 DOI: 10.1016/j.jallcom.2025.182369

Wan-Li Song, Zhou-Xin Wang, Qi Chen, Cheng Zhang, Lin Liu

{"title":"Ultrafast healing of micro-pores in cold-sprayed CuCrZr-W composite coatings via high-frequency induction heating","authors":"Wan-Li Song, Zhou-Xin Wang, Qi Chen, Cheng Zhang, Lin Liu","doi":"10.1016/j.jallcom.2025.182369","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.182369","url":null,"abstract":"Micro-pore healing in cold-sprayed composite coatings with hard particles remains challenging for achieving optimal performance. This work employs high-frequency induction heating (HFIH) to rapidly heal micro-pores (within 17 s) in a cold sprayed CuCrZr-W composite coating by leveraging current detouring and crowding at the boundaries of high-resistance W particles and micro-pores. During cold spraying, limited plastic deformation of CuCrZr particles creates micro-pores at particle interfaces. HFIH induces localized high current density at the CuCrZr-W interface, generating significant thermal and athermal effects. Joule heating elevates local temperatures, promoting rapid Cu grain growth and atomic diffusion, which leads to the shrinkage and partial healing of micro-pores. Furthermore, high current density drives atoms (such as Cr and Zr) accumulation at the interface, enhancing micro-pore filling, and forms a thicker amorphous layer at the CuCrZr/W interface through atomic diffusion, improving the interfacial bonding. As a result, the coating’s conductivity significantly rises from 20% IACS to 44% IACS, and shear strength between the coating and substrate increases from 169 MPa to 189 MPa.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"15 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144664455","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

MXene/ZIF-67-Based Janus Separator for High-Performance Lithium-Sulphur Batteries 基于MXene/ zif -67的高性能锂硫电池Janus分离器

IF 6.2 2区材料科学

Journal of Alloys and Compounds Pub Date : 2025-07-18 DOI: 10.1016/j.jallcom.2025.182305

Chongchong Fu, Di He, Xin Liu, Wei Gu, Yuting Qin, Jiahui Lu, Chengyin Wang, Tianyi Wang

{"title":"MXene/ZIF-67-Based Janus Separator for High-Performance Lithium-Sulphur Batteries","authors":"Chongchong Fu, Di He, Xin Liu, Wei Gu, Yuting Qin, Jiahui Lu, Chengyin Wang, Tianyi Wang","doi":"10.1016/j.jallcom.2025.182305","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.182305","url":null,"abstract":"Lithium-sulphur (Li-S) batteries, renowned for their exceptional theoretical energy density, have emerged as promising candidates for next-generation energy storage systems. However, their widespread commercialization remains hindered by the polysulfide shuttle effect and the instability of the lithium (Li) metal anode. In this study, a Janus separator based on ZIF-67 and MXene was proposed to improve the performance of both the cathode and anode. The cathode-facing layer employs a ZIF-67 featuring micropores that selectively confine polysulfides through combined physical sieving and chemical adsorption, effectively suppressing shuttle phenomena. Simultaneously, the anode-oriented MXene layer enhances lithium-ion (Li+) diffusion capability through its polar surface functional groups, elevates the Li+ transference number, promotes uniform lithium deposition, and effectively suppresses lithium dendrite growth. The Janus separator enables Li-S batteries to achieve exceptional long-term cycling stability under high current density with low capacity decay rate, while maintaining superior discharge capacity even under high sulphur loading conditions. By offering bidirectional functionalization, this design simultaneously stabilizes the sulphur cathode and Li metal anode, providing a novel strategy for advanced separator engineering in Li-S batteries.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"29 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144652379","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optical spectroscopy of ZrO2-Eu2O3 tetragonal solid solutions with monoclinic phase inclusions 含有单斜相夹杂物的ZrO2-Eu2O3四方固溶体的光谱学

IF 6.2 2区材料科学

Journal of Alloys and Compounds Pub Date : 2025-07-18 DOI: 10.1016/j.jallcom.2025.182340

M.A. Borik, S.A. Bukarev, M.V. Gerasimov, A.V. Kulebyakin, E.E. Lomonova, V.A. Myzina, A.A. Reu, P.A. Ryabochkina, N.Yu. Tabachkova, T.V. Volkova

{"title":"Optical spectroscopy of ZrO2-Eu2O3 tetragonal solid solutions with monoclinic phase inclusions","authors":"M.A. Borik, S.A. Bukarev, M.V. Gerasimov, A.V. Kulebyakin, E.E. Lomonova, V.A. Myzina, A.A. Reu, P.A. Ryabochkina, N.Yu. Tabachkova, T.V. Volkova","doi":"10.1016/j.jallcom.2025.182340","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.182340","url":null,"abstract":"The luminescent spectral properties of 96 mol.%ZrO2-4mol.%Eu2O3solid solutions have been studied. X-ray and luminescent spectral data for the 96 mol.%ZrO2-4mol.%Eu2O3tetragonal crystals and their circular differential interference contrast optical images suggest the presence of monoclinic phase inclusions in the crystals.The maximum of the O2-→Eu3+charge transfer band for the monoclinic phase present in the 96 mol.%ZrO2-4mol.%Eu2O3 tetragonal crystals is shifted towards longer wavelengths compared to the respective band of the pure tetragonal phase.We show that the Eu2+ ions in the 96 mol.%ZrO2-4mol.%Eu2O3 tetragonal crystals with monoclinic phase inclusions preferentially occupy monoclinic phase lattice sites.Based on the results of this work, one can suggest a method for fast detection of monoclinic phase inclusions in ZrO2-R2O3 solid solutions (R = REM) using optical spectroscopy.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"24 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144652318","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Insight into charge conduction and relaxation in La2-xCaxFeMnO6 solid solution double perovskites La2-xCaxFeMnO6固溶体双钙钛矿中电荷传导和弛豫的研究

IF 6.2 2区材料科学

Journal of Alloys and Compounds Pub Date : 2025-07-18 DOI: 10.1016/j.jallcom.2025.182341

Baniya R. Meena, Sandip Chatterjee, Anup K. Ghosh

{"title":"Insight into charge conduction and relaxation in La2-xCaxFeMnO6 solid solution double perovskites","authors":"Baniya R. Meena, Sandip Chatterjee, Anup K. Ghosh","doi":"10.1016/j.jallcom.2025.182341","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.182341","url":null,"abstract":"A series of La2-xCaxFeMnO6 (where x = 0, 0.1, 0.2, and 0.5) solid solution has been prepared by the solid-state reaction method. Single-phase disordered cubic crystal structure of crystallite size ~ 50 nm has been confirmed by the Rietveld refinement of X-ray diffraction (XRD) data. Raman spectroscopic study shows improper disordering of MnO6 and FeO6 octahedral. The average grain size (~ 4 µm) and elemental analysis have been estimated by SEM and EDS measurements, respectively. The electronic structure of the prepared samples has been investigated by using the X-ray photoemission spectroscopy (XPS). The value of dielectric constant has been improved from colossal (~1826) to giant (~15238) with low dielectric loss at room temperature due to Ca2+ doping. All samples exhibit the negative temperature coefficient of resistance (NTCR) characteristic. The electrical characteristics of both the grain and grain boundary have been investigated by the analysis of imaginary part of impedance (Z''). The non-Debye type relaxation has been explained by the non-overlapping small polaron tunnelling (NSPT) transport mechanism. I-V characteristic shows the low value of leakage current density (~ 10-4 Amp/cm2) for all measured samples. This study may open an intriguing path for the engineering of better-performing dielectric materials for various electronic devices.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"6 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144652381","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Microstructure and mechanical properties of multi-pass hot-drawn Mg-Gd-Y-Zn-Zr alloy wires 多道次热拉Mg-Gd-Y-Zn-Zr合金丝的组织与力学性能

IF 6.2 2区材料科学

Journal of Alloys and Compounds Pub Date : 2025-07-18 DOI: 10.1016/j.jallcom.2025.182348

Kaipeng Yang, Kai Ma, Wenxiang Xu, Liqing Wang, Zhen Zhang, Yunlong Li, Zhiquan Huang, Zhanyong Zhao, Peikang Bai, Jibo Hou, Fude Wang

{"title":"Microstructure and mechanical properties of multi-pass hot-drawn Mg-Gd-Y-Zn-Zr alloy wires","authors":"Kaipeng Yang, Kai Ma, Wenxiang Xu, Liqing Wang, Zhen Zhang, Yunlong Li, Zhiquan Huang, Zhanyong Zhao, Peikang Bai, Jibo Hou, Fude Wang","doi":"10.1016/j.jallcom.2025.182348","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.182348","url":null,"abstract":"This work investigates the grain orientation evolution, second phase, and their influence on the mechanical properties of Mg-8.5Gd-4Y-2Zn-0.3Zr alloy wires during multi-pass hot drawing. A Φ6 mm extruded Mg-8.5Gd-4Y-2Zn-0.3Zr alloy rod was processed into a Φ1.45 mm wire via multi-pass hot drawing at 450°C. During the drawing process, the intergranular 18R-LPSO phase transformed from a block-shaped morphology to fragmented strip-shaped morphology. The average grain size decreased slightly from 7.83 μm to 7.44 μm. Initially weak <0001>//ED anomalous texture and strong <01-10>//ED texture gradually transformed the strong <01-10>//DD basal texture. The final Φ1.45 mm wire exhibited a tensile strength of 495 MPa, yield strength of 447 MPa, and elongation of 2.41%, demonstrating significant strength enhancement compared to the initial state. Calculations revealed that grain boundary strengthening, dislocation strengthening, and 18R-LPSO phase strengthening contributed collectively to yield strength. The 18R-LPSO phase strengthening identified as the dominant mechanism.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"12 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144652315","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0