Pub Date : 2026-03-24DOI: 10.1016/j.jallcom.2026.187577
S. Goswami, D.I. Gorbunov, D. Kriegner, I. Ishii, C.A. Corrêa, T. Suzuki, D. Brunt, G. Balakrishnan, S. Zherlitsyn, J. Wosnitza, O.A. Petrenko, M.S. Henriques
{"title":"Spontaneous lattice distortion and crystal field effects in HoB 4 ","authors":"S. Goswami, D.I. Gorbunov, D. Kriegner, I. Ishii, C.A. Corrêa, T. Suzuki, D. Brunt, G. Balakrishnan, S. Zherlitsyn, J. Wosnitza, O.A. Petrenko, M.S. Henriques","doi":"10.1016/j.jallcom.2026.187577","DOIUrl":"https://doi.org/10.1016/j.jallcom.2026.187577","url":null,"abstract":"","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"13 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2026-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147502086","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}
Pub Date : 2026-03-24DOI: 10.1016/j.jallcom.2026.187575
Piotr Noga, Anna Kula, Tomasz Skrzekut
{"title":"Mechanical Performance and Microstructural Features of Rapidly Solidified 1050 Aluminum Alloy","authors":"Piotr Noga, Anna Kula, Tomasz Skrzekut","doi":"10.1016/j.jallcom.2026.187575","DOIUrl":"https://doi.org/10.1016/j.jallcom.2026.187575","url":null,"abstract":"","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"59 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2026-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147502284","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}
Ti-V-based multi-principal high-entropy alloys (HEAs) are promising solid-state hydrogen storage materials, while achieving a balanced combination of hydrogen capacity, reversibility, and cycling stability in multiphase alloy systems remains challenging. In this study, a series of TixVxNb10Zr10CryFey (x/y = 0.6, 1.0, 3.0, and 7.0) HEAs was prepared to investigate the influence of the Ti-V/(Cr-Fe) composition ratio (x/y) on phase structure evolution and hydrogen storage performance. The results show that increasing the x/y ratio induces a gradual transition from a single C14 Laves-phase structure to body-centered cubic (BCC) and C14 Laves phase, accompanied by lattice expansion. As the x/y ratio increases, the hydrogen storage capacity is significantly enhanced, reaching 2.66 wt% for Ti35V35Nb10Zr10Cr5Fe5 alloy at 303 K and 3 MPa, while the hydrogen absorption kinetics are fastest for Ti30V30Nb10Zr10Cr10Fe10 alloy. Thermodynamic and kinetic analyses indicate that hydride stability increases with x/y ratio, accompanied by higher desorption barriers. Cycling tests further reveal that Laves-dominant alloys (x/y = 0.6 and 1.0) retain more than 92% capacity after 10 cycles, whereas dual-phase alloys exhibit larger capacity decay, highlighting a capacity-stability trade-off governed by phase constitution. These results demonstrate that hydrogen storage performance in Ti-V-based HEAs can be effectively tuned by composition-driven phase regulation, providing insights into the roles of body-centered cubic (BCC) solid solutions and C14 Laves phases in governing hydrogen absorption, thermodynamics and cycling behavior.
{"title":"Composition-driven phase regulation and hydrogen storage behavior of Ti-V-Nb-Zr-Cr-Fe high-entropy alloys","authors":"Maohua Rong, Xinying Zhou, Yue Liu, Jian Wang, Hongyu Zhang, Rongyuan Wang, Feng Wang","doi":"10.1016/j.jallcom.2026.187589","DOIUrl":"https://doi.org/10.1016/j.jallcom.2026.187589","url":null,"abstract":"Ti-V-based multi-principal high-entropy alloys (HEAs) are promising solid-state hydrogen storage materials, while achieving a balanced combination of hydrogen capacity, reversibility, and cycling stability in multiphase alloy systems remains challenging. In this study, a series of Ti<sub><em>x</em></sub>V<sub><em>x</em></sub>Nb<sub>10</sub>Zr<sub>10</sub>Cr<sub><em>y</em></sub>Fe<sub><em>y</em></sub> (<em>x/y</em> = 0.6, 1.0, 3.0, and 7.0) HEAs was prepared to investigate the influence of the Ti-V/(Cr-Fe) composition ratio (<em>x/y</em>) on phase structure evolution and hydrogen storage performance. The results show that increasing the <em>x/y</em> ratio induces a gradual transition from a single C14 Laves-phase structure to body-centered cubic (BCC) and C14 Laves phase, accompanied by lattice expansion. As the <em>x/y</em> ratio increases, the hydrogen storage capacity is significantly enhanced, reaching 2.66 wt% for Ti<sub>35</sub>V<sub>35</sub>Nb<sub>10</sub>Zr<sub>10</sub>Cr<sub>5</sub>Fe<sub>5</sub> alloy at 303 K and 3 MPa, while the hydrogen absorption kinetics are fastest for Ti<sub>30</sub>V<sub>30</sub>Nb<sub>10</sub>Zr<sub>10</sub>Cr<sub>10</sub>Fe<sub>10</sub> alloy. Thermodynamic and kinetic analyses indicate that hydride stability increases with <em>x/y</em> ratio, accompanied by higher desorption barriers. Cycling tests further reveal that Laves-dominant alloys (<em>x/y</em> = 0.6 and 1.0) retain more than 92% capacity after 10 cycles, whereas dual-phase alloys exhibit larger capacity decay, highlighting a capacity-stability trade-off governed by phase constitution. These results demonstrate that hydrogen storage performance in Ti-V-based HEAs can be effectively tuned by composition-driven phase regulation, providing insights into the roles of body-centered cubic (BCC) solid solutions and C14 Laves phases in governing hydrogen absorption, thermodynamics and cycling behavior.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"90 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2026-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147507666","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}
Pub Date : 2026-03-24DOI: 10.1016/j.jallcom.2026.187525
Yao Li, Dianfei Shao, Bo Cen, Chenyue Jiang, Jun Liang, Yuxiu Zhang
{"title":"Inherited effect from isothermal annealing on the microstructures, mechanical properties and thermal conductivity of extruded Mg-Mn-Zn alloys sheet and rod","authors":"Yao Li, Dianfei Shao, Bo Cen, Chenyue Jiang, Jun Liang, Yuxiu Zhang","doi":"10.1016/j.jallcom.2026.187525","DOIUrl":"https://doi.org/10.1016/j.jallcom.2026.187525","url":null,"abstract":"","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"52 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2026-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147502287","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}
Silicon (Si) is a prime candidate for solid-state thin-film lithium-ion battery (TFB) anodes, but suffers from severe capacity fading caused by volume-expansion-induced delamination. To address this, we propose an interfacial anchoring strategy utilizing a titanium (Ti) interlayer to mechanically and chemically rivet silicon films. Leveraging the high reactivity and nanocrystalline structure of Ti, the interlayer achieves dual anchoring via chemical bonding and a rough interface. Furthermore, doubleaberration-corrected transmission electron microscopy (AC-STEM) and electron energy loss spectroscopy (EELS) reveal that the enhanced adhesion stems from rough interface coupled with chemical bonding. Additionally, c-AFM reveals that the introduction of Ti layers significantly enhanced the local current response of the thin film. Benefiting from these synergistic improvements, the Si/Ti multilayer thin film anode not only retains a high specific capacity of 1978 mAh g⁻¹ (70.4% retention) after 2000 cycles at 3 A g⁻¹ but also delivers a remarkable capacity of 1046 mAh g⁻¹ at high rate of 70 A g⁻¹ . This work offers a robust interfacial engineering solution for developing high-performance silicon-based thin-film anodes.
硅（Si）是固态薄膜锂离子电池（TFB）阳极的主要候选材料，但由于体积膨胀引起的分层导致严重的容量衰退。为了解决这个问题，我们提出了一种界面锚定策略，利用钛（Ti）中间层来机械和化学铆接硅膜。利用钛的高反应性和纳米晶结构，中间层通过化学键和粗糙的界面实现双锚定。此外，双像差校正透射电子显微镜（AC-STEM）和电子能量损失谱（EELS）显示，粘附力的增强源于粗糙界面与化学键的耦合。此外，c-AFM表明，Ti层的引入显著增强了薄膜的局部电流响应。得益于这些协同改进，Si/Ti多层薄膜阳极不仅在3 a g⁻¹ 循环2000次后保持了1978 mAh的高比容量（保持70.4%），而且在70 a g⁻¹ 的高速率下提供了1046 mAh的高比容量。这项工作为开发高性能硅基薄膜阳极提供了一个强大的界面工程解决方案。
{"title":"Interfacial anchoring by a titanium adhesion layer for high-performance silicon thin-film anodes","authors":"Tu Lan, Zeyu Cui, Junyi Tian, Xinyue Shi, Huiqian Yang, Changming Dai, Zhiwei Ju, Xiantong Wang, Yibo Zeng, Ying Zhang, Hang Guo","doi":"10.1016/j.jallcom.2026.187579","DOIUrl":"https://doi.org/10.1016/j.jallcom.2026.187579","url":null,"abstract":"Silicon (Si) is a prime candidate for solid-state thin-film lithium-ion battery (TFB) anodes, but suffers from severe capacity fading caused by volume-expansion-induced delamination. To address this, we propose an interfacial anchoring strategy utilizing a titanium (Ti) interlayer to mechanically and chemically rivet silicon films. Leveraging the high reactivity and nanocrystalline structure of Ti, the interlayer achieves dual anchoring via chemical bonding and a rough interface. Furthermore, doubleaberration-corrected transmission electron microscopy (AC-STEM) and electron energy loss spectroscopy (EELS) reveal that the enhanced adhesion stems from rough interface coupled with chemical bonding. Additionally, c-AFM reveals that the introduction of Ti layers significantly enhanced the local current response of the thin film. Benefiting from these synergistic improvements, the Si/Ti multilayer thin film anode not only retains a high specific capacity of 1978 mAh g⁻¹ (70.4% retention) after 2000 cycles at 3 A g⁻¹ but also delivers a remarkable capacity of 1046 mAh g⁻¹ at high rate of 70 A g⁻¹ . This work offers a robust interfacial engineering solution for developing high-performance silicon-based thin-film anodes.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"32 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2026-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147507667","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：