Journal of Alloys and Compounds最新文献

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The synergistic storm: unveiling the potential of the CuSe-MoS2 composite in extrinsic pseudocapacitor, and understanding their charge storage mechanism 协同风暴:揭示 CuSe-MoS2 复合材料在外生型伪电容器中的潜力,了解其电荷存储机制
IF 6.2 2区 材料科学
Journal of Alloys and Compounds Pub Date : 2025-01-20 DOI: 10.1016/j.jallcom.2025.178773
Muhammad Sajjad, Muhammad Zia Ullah Shah, Jing Zhang, Zhiyu Mao
{"title":"The synergistic storm: unveiling the potential of the CuSe-MoS2 composite in extrinsic pseudocapacitor, and understanding their charge storage mechanism","authors":"Muhammad Sajjad, Muhammad Zia Ullah Shah, Jing Zhang, Zhiyu Mao","doi":"10.1016/j.jallcom.2025.178773","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.178773","url":null,"abstract":"A wet chemical method was used to synthesize a CuSe-MoS<sub>2</sub> composite, aiming to enhance the charge storage capacity of pure CuSe for energy storage applications. X-ray diffraction analysis confirmed that both the CuSe and MoS<sub>2</sub> samples exhibited a hexagonal crystal structure. Scanning electron microscopy revealed a nanoparticle morphology for CuSe and a nanosphere morphology for MoS<sub>2</sub>. Detailed characterization showed that the CuSe- MoS<sub>2</sub> composite achieved a higher capacitance of 678<!-- --> <!-- -->F/g with a significantly lower charge transfer resistance (Rct), indicating improved conductivity and charge storage behavior in an aqueous alkaline electrolyte. Furthermore, a hybrid supercapacitor was assembled using CuSe- MoS<sub>2</sub> composite electrodes and activated carbon electrodes. This device exhibited a voltage window of 1.6<!-- --> <!-- -->V and a capacitance of 94<!-- --> <!-- -->F/g at 1<!-- --> <!-- -->A/g. Remarkably, it maintained 89.4% of its initial capacitance after 5000 cycles at a high current density of 10<!-- --> <!-- -->A/g, demonstrating excellent stability. The device also achieved a high specific energy of 33<!-- --> <!-- -->Wh/kg and a high specific power of 3900<!-- --> <!-- -->W/kg, indicating its potential for practical energy storage applications.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"138 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142990783","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
Synthesis of Ternary Layered Carbide M3SnC2 (M=Ti, Zr, Hf) for Microwave Absorption 用于微波吸收的三元层状碳化物 M3SnC2(M=钛、锆、铪)的合成
IF 6.2 2区 材料科学
Journal of Alloys and Compounds Pub Date : 2025-01-20 DOI: 10.1016/j.jallcom.2025.178750
Miaoqing Chen, Yubin Zhang, Zaisheng Zhu, Mengting Li, Fei Fang, Youbing Li
{"title":"Synthesis of Ternary Layered Carbide M3SnC2 (M=Ti, Zr, Hf) for Microwave Absorption","authors":"Miaoqing Chen, Yubin Zhang, Zaisheng Zhu, Mengting Li, Fei Fang, Youbing Li","doi":"10.1016/j.jallcom.2025.178750","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.178750","url":null,"abstract":"Electromagnetic wave pollution has emerged as a global challenge, disrupting the normal operation of various electronic devices and posing significant risks to human health. MAX phases are considered promising materials for absorbing electromagnetic (EM) waves due to their unique layered structure and inherent properties. In this study, we synthesized three ternary Sn-based MAX phases: Ti<sub>3</sub>SnC<sub>2</sub>, Zr<sub>3</sub>SnC<sub>2</sub>, and Hf<sub>3</sub>SnC<sub>2</sub>. The Ti<sub>3</sub>SnC<sub>2</sub> and Zr<sub>3</sub>SnC<sub>2</sub> exhibit minimum reflection losses (RL<sub>min</sub>) of −35.5<!-- --> <!-- -->dB at 1.5<!-- --> <!-- -->mm and −40.2<!-- --> <!-- -->dB at 1.6<!-- --> <!-- -->mm, along with effective absorption bandwidths (E<sub>AB</sub>) of 2.56<!-- --> <!-- -->GHz and 3.6<!-- --> <!-- -->GHz, respectively. And show efficient absorption of electromagnetic wave energy across the X (8.2-12.4<!-- --> <!-- -->GHz) and Ku (12.4-18<!-- --> <!-- -->GHz) bands, with thicknesses ranging from 1.1 to 1.8<!-- --> <!-- -->mm. In contrast, Hf<sub>3</sub>SnC<sub>2</sub> does not effectively absorb electromagnetic waves. This study highlights the significant potential of MAX phase materials as wave-absorbing solutions.<h3>Data Availability Statement</h3>Data will be made available on request.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"36 9 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142990792","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
Precipitation behaviors of Al6Mn of Mn-increased 5083 during homogenization annealing and its influences on hot deformation and mechanical properties mn - 5083均质化退火过程中Al6Mn的析出行为及其对热变形和力学性能的影响
IF 6.2 2区 材料科学
Journal of Alloys and Compounds Pub Date : 2025-01-20 DOI: 10.1016/j.jallcom.2025.178753
Peng Zhang, Yue Wang, Pizhi Zhao, Bang Liu, Zhenshan Liu, Zhengyi Jiang, Yinbao Tian, Yang Yang, Jian Han
{"title":"Precipitation behaviors of Al6Mn of Mn-increased 5083 during homogenization annealing and its influences on hot deformation and mechanical properties","authors":"Peng Zhang, Yue Wang, Pizhi Zhao, Bang Liu, Zhenshan Liu, Zhengyi Jiang, Yinbao Tian, Yang Yang, Jian Han","doi":"10.1016/j.jallcom.2025.178753","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.178753","url":null,"abstract":"In this study, the precipitation behaviors of Mn-containing phases in Mn-increased 5083 alloy via designed homogenization annealing were investigated. With the prolonged duration, Al<sub>6</sub>Mn precipitates transitioned from initially-fine distributions to coarser forms. Uniaxial compression tests on the samples featuring different Al<sub>6</sub>Mn precipitates were performed in a temperature range of 380-480 °C, and a strain rate from 0.005 to 5.0<!-- --> <!-- -->s<sup>-1</sup>. The dispersed Al<sub>6</sub>Mn nanoparticles were found to significantly enhance the recrystallization activation energy. And the mechanical tests of hot rolled plates demonstrated that samples with dispersed Al<sub>6</sub>Mn nanoparticles exhibited the highest ultimate tensile strength (UTS) and yield strength (YS). This enhancement is primarily due to the pinning effect of nano-scaled Al<sub>6</sub>Mn particles on dislocations and sub-grain boundaries, inhibiting recrystallization and thereby improving the thermal stability and strength of the material. And Electron backscatter diffraction (EBSD) results indicated that at high Z (Zener-Hollomon coefficient) values, continuous dynamic recrystallization (CDRX) predominated as the major softening mechanism. Conversely, at lower Z values, the inhibition of CDRX led to discontinuous dynamic recrystallization (DDRX) as the primary softening mechanism.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"9 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142990722","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
Effects of scandium on the microstructure and mechanical properties of 2524 aluminum alloy 钪对2524铝合金组织和力学性能的影响
IF 6.2 2区 材料科学
Journal of Alloys and Compounds Pub Date : 2025-01-20 DOI: 10.1016/j.jallcom.2025.178733
Yilei Wang, Yong Li, Tongjin Zhang, Haiyao Wang, Hang Zou, Boyang Gao, Hongqun Tang
{"title":"Effects of scandium on the microstructure and mechanical properties of 2524 aluminum alloy","authors":"Yilei Wang, Yong Li, Tongjin Zhang, Haiyao Wang, Hang Zou, Boyang Gao, Hongqun Tang","doi":"10.1016/j.jallcom.2025.178733","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.178733","url":null,"abstract":"The effects of scandium (Sc) on the precipitation behavior and properties of 2524 aluminum alloy were studied using electron probe microanalysis (EPMA), differential scanning calorimetry (DSC), electron backscatter diffraction (EBSD), and transmission electron microscopy (TEM). It was noticed that the addition of Sc caused a decline in Al<sub>20</sub>Cu<sub>2</sub>Mn<sub>3</sub> (T) phases precipitation during homogenization, resulting in the late precipitation of Guinier-Preston-Bagaryatsky (GPB) regions and Al<sub>2</sub>CuMg (S) phases in the early aging stage. In the later period of aging, the addition of Sc improved the strength of the alloy by increasing the quantity and density of precipitated S phases. In addition, Sc effectively prevented the coarsening of S phases during over-aging, promoted the high-density distribution of S phases, and improved the thermal stability of the alloy. The tensile strength of the samples containing 0.15<!-- --> <!-- -->wt% and 0.3<!-- --> <!-- -->wt% of Sc increased from 419<!-- --> <!-- -->MPa (tensile strength of the sample without Sc) to 466<!-- --> <!-- -->MPa and 446<!-- --> <!-- -->MPa at room temperature, respectively. Similarly, at 210°C, the tensile strength of the samples containing 0.15<!-- --> <!-- -->wt% and 0.3<!-- --> <!-- -->wt% of Sc increased from 229<!-- --> <!-- -->MPa (tensile strength of the sample without Sc) to 265<!-- --> <!-- -->MPa and 247<!-- --> <!-- -->MPa, respectively. This study provides a valuable reference for improving the high-temperature performance of 2xxx series aluminum alloys.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"35 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142990642","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 of titanium alloy in additive/subtractive hybrid manufacturing: a review 增材/减材混合制造中的钛合金微观结构:综述
IF 6.2 2区 材料科学
Journal of Alloys and Compounds Pub Date : 2025-01-20 DOI: 10.1016/j.jallcom.2025.178769
Yuying Yang, Shuaiyuan Yan, Shuoshuo Qu, Mingdong Yi, Zhaoqiang Chen, Tingting Zhou, Chonghai Xu
{"title":"Microstructure of titanium alloy in additive/subtractive hybrid manufacturing: a review","authors":"Yuying Yang, Shuaiyuan Yan, Shuoshuo Qu, Mingdong Yi, Zhaoqiang Chen, Tingting Zhou, Chonghai Xu","doi":"10.1016/j.jallcom.2025.178769","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.178769","url":null,"abstract":"Due to its exceptional characteristics, including high-temperature resistance, corrosion resistance, and oxidation resistance, titanium alloy is extensively utilized in advanced fields such as aerospace and biomedical applications. Additive/Subtractive Hybrid Manufacturing (A/SHM) combines the advantages of Additive Manufacturing (AM) and Subtractive Manufacturing (SM), facilitating the one-step fabrication of complex component structures with high precision and quality. This approach offers innovative design concepts and methodologies for the processing and manufacturing of titanium alloy components. This review recapitulates the evolution laws of microstructure formation of titanium alloys in A/SHM, including phase composition and grain morphology, and expounds the correlation between microstructure and mechanical properties. It encompasses the influence of different processes such as scanning speed and laser power in A/SHM on the microstructure of titanium alloys and conducts process optimization. It further analyzes the deficiencies and challenges in the current cognition of A/SHM and presents personal insights into future research directions. This review also introduces the industrial applications of titanium alloy components fabricated by A/SHM and emphasizes its extensive development potential.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"31 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142990781","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
Revolutionary bismuth vanadate nanowires: enhanced water oxidation with exposed (0 0 1) facets 革命性的钒酸铋纳米线:利用裸露的 (0 0 1) 面增强水氧化作用
IF 6.2 2区 材料科学
Journal of Alloys and Compounds Pub Date : 2025-01-20 DOI: 10.1016/j.jallcom.2025.178772
Janak Preet Kaur, Chong Siang Yaw, Wei Sea Chang, Meng Nan Chong
{"title":"Revolutionary bismuth vanadate nanowires: enhanced water oxidation with exposed (0 0 1) facets","authors":"Janak Preet Kaur, Chong Siang Yaw, Wei Sea Chang, Meng Nan Chong","doi":"10.1016/j.jallcom.2025.178772","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.178772","url":null,"abstract":"Bismuth vanadate (BiVO<sub>4</sub>) photoanodes are promising for the oxygen evolution reaction (OER) due to their effective light absorption, high photostability, and extended carrier diffusion length. This study reports the first successful synthesis of BiVO<sub>4</sub> nanowires with exposed (0 0 1) facets, confirmed by XRD and HRTEM. The optimal 1D crystal structure of BiVO<sub>4</sub> was achieved using acetic acid as a capping agent, with the BVO-0.04<!-- --> <!-- -->M sample exhibiting consistent nanowire morphology, high light absorption, and significantly higher photocurrent density. The findings demonstrated the attainment of significantly high photocurrent density of 1<!-- --> <!-- -->mA<!-- --> <!-- -->cm<sup>-2</sup> at 1<!-- --> <!-- -->V vs Ag/AgCl for a native and bare BiVO<sub>4</sub> with exposed (0 0 1) facets, which was correlated to the high charge carrier density and mobility arising from the 1D nanostructures. This study presents a self-assembled and innovative BiVO<sub>4</sub> nanoarchitecture, paving the way for strategic photoanode designs to enhance water splitting efficiency.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"9 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142990793","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
Self-supporting nickel single atom catalyst derived from nickel metal organic framework for efficient electrocatalysis of CO2 自支撑镍单原子催化剂来源于镍金属有机骨架,用于CO2的高效电催化
IF 6.2 2区 材料科学
Journal of Alloys and Compounds Pub Date : 2025-01-20 DOI: 10.1016/j.jallcom.2025.178780
Jiale Sun, Haihui Zhou, Junwei Xu, Ping Gao, Xia Huang, Yifei Li, Nanshan Xu, Rilong Zhu, Zhongyuan Huang
{"title":"Self-supporting nickel single atom catalyst derived from nickel metal organic framework for efficient electrocatalysis of CO2","authors":"Jiale Sun, Haihui Zhou, Junwei Xu, Ping Gao, Xia Huang, Yifei Li, Nanshan Xu, Rilong Zhu, Zhongyuan Huang","doi":"10.1016/j.jallcom.2025.178780","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.178780","url":null,"abstract":"The common powder nickel single atom catalyst shows superior electrochemical CO<sub>2</sub> reduction (ECR) performance, but it still faces some drawbacks of complicated preparation procedure, active site blocking and large resistance. In this work, the self-supporting Ni single atom catalyst was successfully grown on the carbon paper (Ni-N<sub>x</sub>-b/CP) through the construction of nickel metal organic framework and subsequent calcination process. The Ni-N<sub>x</sub>-b/CP possesses 3D hexagonal prism skeleton with abundant porous structure, which could provide more active sites and sufficient transport for electrolyte and CO<sub>2</sub> gas. Ni-N<sub>x</sub>-b/CP displays a high CO partial current density (j<sub>CO</sub>) of -160.8<!-- --> <!-- -->mA<!-- --> <!-- -->cm<sup>-2</sup> at -1.0<!-- --> <!-- -->V (vs reversible hydrogen electrode) and keeps CO faradaic efficiency (FE<sub>CO</sub>) at above 90% at the potential range of -0.5 - -1.0<!-- --> <!-- -->V in flow cell. Meanwhile, Zn-CO<sub>2</sub> battery assembled with Ni-N<sub>x</sub>-b/CP cathode and Zn anode delivers a high power density of 1.10<!-- --> <!-- -->mW<!-- --> <!-- -->cm<sup>-2</sup> at 3.46<!-- --> <!-- -->mA<!-- --> <!-- -->cm<sup>-2</sup> and good cycling stability. The self-supporting catalyst obtained by metal organic framework can be expected to expand other catalysts and improve their catalytic performances.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"6 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142990645","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
Cationic substitution induces multicolor emission in YBaZn3-yMgyGaO7:Bi3+ phosphors for WLEDs and information encryption wled用ybazn3 - ygygao7:Bi3+荧光粉的阳离子取代诱导多色发光和信息加密
IF 6.2 2区 材料科学
Journal of Alloys and Compounds Pub Date : 2025-01-20 DOI: 10.1016/j.jallcom.2025.178756
Dan Zhang, Taifang Zhang, Jingxi Li, Bibo Lou, Peng Wang, Chonggeng Ma
{"title":"Cationic substitution induces multicolor emission in YBaZn3-yMgyGaO7:Bi3+ phosphors for WLEDs and information encryption","authors":"Dan Zhang, Taifang Zhang, Jingxi Li, Bibo Lou, Peng Wang, Chonggeng Ma","doi":"10.1016/j.jallcom.2025.178756","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.178756","url":null,"abstract":"Currently, the development of innovative, efficient phosphors featuring near-ultraviolet excitation and broadband emission, notably Bi<sup>3+</sup>-activated phosphor, is pivotal for realizing high-performance white light-emitting diodes (WLEDs). In this work, we report a series of broadband orange-green emitting YBaZn<sub>3-<em>y</em></sub>Mg<sub><em>y</em></sub>GaO<sub>7</sub>: Bi<sup>3+</sup> phosphors with strong n-UV excitation. By employing cationic substitution, we successfully tuned the emission wavelength from 605 to 550<!-- --> <!-- -->nm, thereby unlocking potential for multifunctional applications in solid state lighting and information encryption. YBaZn<sub>3</sub>GaO<sub>7</sub>:0.015Bi<sup>3+</sup> phosphor generates 605<!-- --> <!-- -->nm orange emission with a full width at half-maximum (FWHM) of 220<!-- --> <!-- -->nm under 330 nm n-UV excitation, with high luminescence intensity and excellent thermal stability. In addition, the luminescence mechanism of Bi<sup>3+</sup> ions in YBaZn<sub>3-<em>y</em></sub>Mg<sub><em>y</em></sub>GaO<sub>7</sub>: Bi<sup>3+</sup> was investigated thoroughly. A high-performance W-LED device has been fabricated, utilizing a unique YBaZn<sub>3</sub>GaO<sub>7</sub>:0.015Bi<sup>3+</sup> phosphor and commercial blue and green phosphors, pumped by a 365<!-- --> <!-- -->nm chip. This phosphor-converted (pc) WLED has an excellent color-rendering index (R<sub>a</sub>) of 95.6 and a comfortable correlated color temperature (CCT) of 5193<!-- --> <!-- -->K. This result indicates its potential applications in the field of health lighting. Furthermore, the orange-green YBaZn<sub>3-<em>y</em></sub>Mg<sub><em>y</em></sub>GaO<sub>7</sub>: Bi<sup>3+</sup> phosphor demonstrates precise information identification in information encryption, confirming its potential in this field.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"58 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142991029","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
Investigation on microstructure and high-temperature tensile properties of in-situ (ZrB2+Al2O3)/AA6016 nanocomposite 原位(ZrB2+Al2O3)/AA6016 纳米复合材料的微观结构和高温拉伸性能研究
IF 6.2 2区 材料科学
Journal of Alloys and Compounds Pub Date : 2025-01-20 DOI: 10.1016/j.jallcom.2025.178771
Pengfei Zhao, Xizhou Kai, Sixian Liu, Luyao Huang, Chuang Guan, Wei Qian, Yutao Zhao
{"title":"Investigation on microstructure and high-temperature tensile properties of in-situ (ZrB2+Al2O3)/AA6016 nanocomposite","authors":"Pengfei Zhao, Xizhou Kai, Sixian Liu, Luyao Huang, Chuang Guan, Wei Qian, Yutao Zhao","doi":"10.1016/j.jallcom.2025.178771","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.178771","url":null,"abstract":"To improve the high-temperature performance of 6016 aluminum alloy, in-situ ZrB<sub>2</sub> and Al<sub>2</sub>O<sub>3</sub> nanoparticles were introduced to the matrix alloy. The ZrB<sub>2</sub> and Al<sub>2</sub>O<sub>3</sub> nanoparticles were hexagonal and spherical shape with semi-coherent and coherent interface between Al, respectively. The semi-coherent ZrB<sub>2</sub> and coherent Al<sub>2</sub>O<sub>3</sub> nanoparticles can provide α-Al with sufficient nucleation sites so as to refine grains. The UTS and EL of in-situ (ZrB<sub>2</sub>+Al<sub>2</sub>O<sub>3</sub>)/AA6016 composites at 473<!-- --> <!-- -->K reached 226.5<!-- --> <!-- -->MPa and 13.7%, which were 12.5% and 25.7% higher than matrix alloys. The fracture morphology indicated that the voids nucleation and growth are the dominant fracture mechanism for both matrix alloys and composites during high-temperature tensile test. The composites possess finer grains and diminutive cavities compared with those in the matrix alloys. Thermodynamically stable nanoparticles are capable of impeding dislocation motion, grain growth, as well as the generation of tiny holes, which enables the composites to exhibit enhanced properties. Moreover, the precipitates with smaller size and larger density make the composites show superior properties. The capabilities of nanoparticles in releasing stress concentration and causing cracks deflection and bridging are the main toughening mechanisms of the composite.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"27 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142990719","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
Ce-doped LaMnO3 ceramic hole-transporting material synthesis for quasi-solid-state quantum dot-sensitized solar cells as efficient electrolyte 准固态量子点敏化太阳能电池高效电解质掺杂铈LaMnO3陶瓷空穴输运材料的合成
IF 6.2 2区 材料科学
Journal of Alloys and Compounds Pub Date : 2025-01-20 DOI: 10.1016/j.jallcom.2025.178767
Senyang Wang, Xin Li, Mengyu Liu, Pi Wang, Jingyi Qi, Ling Li
{"title":"Ce-doped LaMnO3 ceramic hole-transporting material synthesis for quasi-solid-state quantum dot-sensitized solar cells as efficient electrolyte","authors":"Senyang Wang, Xin Li, Mengyu Liu, Pi Wang, Jingyi Qi, Ling Li","doi":"10.1016/j.jallcom.2025.178767","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.178767","url":null,"abstract":"Considering the instability of quantum dot sensitized solar cells (QDSSCs) due to the leakage and volatileness of polysulfide electrolyte. We explored the possibility of applying Ce doping LaMnO<sub>3</sub> ceramic hole transport material (LaMnCe) inside QDSSCs. LaMnO<sub>3</sub> oxides possess high electronic conductivity. Doping of Ce can adjust the band position of materials to match Zn-Cu-In-Se (ZCISe) QDSSCs. LaMnCe was added to the photoanode by spin method and further constructed into the quasi-solid state QDSSCs. The QDSSCs can achieve the PCE of 9.15% (V<sub>oc</sub> is 0.66<!-- --> <!-- -->V, J<sub>sc</sub> is 24.49<!-- --> <!-- -->mA·cm<sup>-2</sup>, FF is 57.80), which is 33% higher than the standard liquid QDSSCs. The average electron lifetime of quasi-solid-state QDSSCs prepared with LaMnCe is 5% higher than that of liquid QDSSCs, and the stability performance of the QDSSCs has been raised significantly.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"46 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142991028","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
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