Results 31 to 40 of about 35,734 (205)
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Developing oxygen evolution reaction (OER) catalysts that combine high performance with cost‐effectiveness is a critical challenge for advancing the commercialization of anion exchange membrane water electrolysis (AEMWE). Practical application is often hindered by issues such as poor batch reproducibility and low‐cost efficiency.
Chuang Zhang +9 more
wiley +1 more source
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT This study introduces a novel velocity‐iterative directional annealing (IDA) strategy to overcome stagnation challenges in columnar grain growth of Ti‐48Al‐2Cr‐2Nb alloys. By dynamically adjusting hot zone migration rates across iterative cycles, the IDA protocol achieved 92.2% synchronization between anisotropic α‐grain boundary (GB ...
Zedong Liu +6 more
wiley +1 more source
Jixie chuandong, 1993 应用有限元方法分析了密封式柔轮的位移场及应力场,得到了位移及应力的分布规律;发现了位移在短轴处的上凸现象及避免措施;讨论了结构参数对位移及应力的影响;提出了密封式柔轮的合理的结构参数。
朱林剑, 尤竹平, 马清武
doaj
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Ceramic reinforcement is crucial for crafting ultrastrong and wear‐resistant metallic components. However, pronounced stress concentration and strain incompatibility at ceramic–metal interfaces often trigger microcrack initiation and ceramic spalling exacerbating friction under sliding conditions.
Dongting Li +8 more
wiley +1 more source
Dianci bileiqi, 2023 输电线路接地故障的短路电流回流将在源端变电站接地网产生较高的暂态电位差和内部转移电位差，可能引发接地系统问题，对接地网均压、电气完整性和绝缘提出较高的要求。本文以接地运行变压器引发转移电位差而导致油色谱装置输油管放电烧蚀漏油、变电站内部参考电位引发转移电位差而导致火花放电草地起火，以及暂态电位升高风险点引发接地系统故障等典型事件为案例，对暂态地电位升不均匀性分布进行计算分析，指出线路故障期间的源端变电站网内暂态转移电位差可达到数千伏的水平，具备触发火花放电或绝缘击穿的条件，给站内绝缘薄弱点带来运行风险 ...
李谦, 张义, 王森, 张波
doaj
Dizhen xuebao, 2020 2016年11月22日日本本州东岸近海发生东日本MW9.0大地震的MS7.2强余震。本文利用美国内华达大学内华达大地测量实验室网站获得此次大地震周围共30多个GPS连续观测站及其它台站的IGS08全球参考框架坐标时间序列，采用北京附近的GPS连续观测站BJSH作为区域位移参考框架的核心站，获取了此次MS7.2强余震的同震水平位移和区域参考框架位移时间序列，得到了此次强余震前后的位移时空变化图像。结果显示：尽管本州东岸近海MS7.2地震作为东日本MW9.0地震的强余震，受其震后形变的影响强烈 ...
Guohua Gu, Wuxing Wang
doaj +1 more source
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Additively manufactured AlCoFeNi series eutectic high‐entropy alloys (EHEAs) exhibit nonequilibrium dual‐phase microstructure in the as‐printed state, allowing them to be easily tailored through annealing to explore their strength–toughness potential.
Huidong Wu +13 more
wiley +1 more source
Jianzhu Gangjiegou Jinzhan, 2022 提出一种适用于自复位钢木混合剪力墙结构的直接基于位移的设计方法，并设计了一栋6层自复位钢木混合剪力墙结构，通过非线性时程分析对设计方法的合理性进行了验证。进一步选取50条地震动记录进行结构的非线性时程分析，研究了结构在地震作用下的损伤状态。基于云图法的易损性分析，获得了6层自复位钢木混合剪力墙结构针对不同性能目标的易损性曲线，研究了自复位系数对结构易损性的影响。研究结果表明：直接基于位移的设计方法适用于自复位钢木混合剪力墙结构的分析，且可设置结构最大层间位移角和最大残余层间位移角为性能目标 ...
吕兆华, 陈飞, 李征
doaj
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Constructing a porous scaffold with the essential features of natural cancellous bone, including structural architecture and biochemical cues, is one of the pivotal factors for effective bone regeneration. In this study, a biomimetic composite porous Gelatin fibrous scaffold (SrHA/Gelatin) incorporating ultralong strontium‐doped hydroxyapatite
Yin‐Chuan Wang +8 more
wiley +1 more source
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT A comparative study was performed to elucidate the temperature‐dependent corrosion kinetics and the semiconductor/structural characteristics of the passive film formed on Fe40Ni7Cr17Mo12C13B9Y2 (at%) amorphous alloy coatings. The results indicate that increasing temperature accelerates the corrosion kinetics of the coating.
Yang Lv +12 more
wiley +1 more source