Results 41 to 50 of about 182,819 (144)
Ni‐Induced Interface Refinement Enhances Strength‐Ductility Synergy in LPBF‐Processed Ti‐Mo‐Ni Alloy
Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT Microstructural refinement is a common strategy for strengthening additively manufactured titanium alloys because it promotes phase nucleation. Reducing the α/β interfacial formation energy is an effective way to increase the nucleation rate.
An Li +6 more
wiley +1 more source
Metal‐Filamentary Memristor‐Based Artificial Neurons for Embodied Neuromorphic Intelligence
Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT Embodied neuromorphic intelligence represents a transformative paradigm for next‐generation intelligent systems, with broad implications for robotics, autonomous driving, intelligent manufacturing, and smart infrastructures. Neuromorphic chips enable bioinspired computing with sparse, heterogeneous representations and spatiotemporal dynamics ...
Tianci Huang, Zuqing Yuan, Qilin Hua
wiley +1 more source
, 1986 Ⅰ.前言 由于灾难性工程断裂事故时有发生,工程结构安全性评定引起人们的极大关注。1982年美国Battelle实验室在关于断裂损失的首次综合考察中提出,材料的断裂以及为防止这类破坏所作的努力,使美国工业每年耗费达1190亿美元,相当于国家总产值的4％。但在不增加断裂危险情况下,加强检查、维护和修理,约有29％的断裂耗费可以避免。利用断裂力学的研究成果改进材料制造工艺和加强焊接过程的质量控制,可使每年耗费再减少24％。
李英治, 柳春图
core +1 more source
Gaoya dianqi, 2015 某型号高压开关用铸态拐臂在试验过程中发生断裂,通过宏观检验、化学分析、金相检验、扫描电镜与能谱分析等方法对铸态拐臂断裂的原因进行了分析。结果表明:非金属夹杂是裂纹源萌生的地方,随后裂纹不断扩展,最终导致球墨铸铁拐臂断裂失效。拐臂的断裂机制为解理+沿晶界的混合型断裂,连续分布的皮下气孔也是促使拐臂断裂的原因。
王建伟, 何佳, 赵涛, 邹新峰
doaj
Dizhen xuebao曲江断裂带位于川滇地块东南缘，自摆依寨出发，止于小江断裂带南段，是1970年MS7.7通海大地震的发震断层。为深入认识该断裂带的结构特征，本文基于密集线性台阵记录的远震P波走时延迟，对其低速体的边界与宽度进行探测。首先，利用不同判据从观测获得的远震走时延迟形态中识别断裂带低速体的可能边界与宽度；随后，采用远震QSSP-CGFD3D混合计算方法，通过远震波形模拟对结果进行评估。研究结果表明，基于远震走时延迟突增的位置能够较为准确地识别断裂带的边界。在实际应用中 ...
Hongtao¹ Gao +3 more
doaj +1 more source
Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT Conductive hydrogels show great potential in flexible electronics and biomedical devices, yet their practical applications are often hindered by insufficient mechanical strength, poor environmental stability, and limited functionality. To address these challenges, this study has developed a hydrogel platform that integrates diagnosis and ...
Wei Jiang +9 more
wiley +1 more source
Dizhen xuebao, 2019 通过建立三维数值模型，对隐伏正断层在均匀错动和倾斜错动方式下土体的破裂过程进行研究。利用应力罗德参数和等效塑性应变分别对断层错动过程中上覆土体的应力状态和破坏形式进行分析，并提出土体破裂的判别方法。通过对数值模拟结果的分析得到以下结论：① 在断层错动过程中，下盘一侧受断层错动影响的上覆土体的应力状态经压剪→纯剪→拉剪逐渐变化，而上盘一侧上覆土体的应力状态变化较为复杂，经压剪→纯剪→拉剪→纯剪→压剪重复变化；② 在断层均匀错动过程中，断层下盘一侧土体的破裂率先出现在地表拉剪区内，随错动量的增大 ...
Jianfeng Qi +3 more
doaj +1 more source
Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT With the rapid development of flexible electronics, there is an increasing demand for hydrogel‐based sensors with rapid fabrication, robust mechanical performance, and stable sensing behavior. Herein, a green and ultrafast self‐catalytic strategy is developed to fabricate a multifunctional hydrogel based on tannic acid‐coated cellulose ...
Jin Qian +6 more
wiley +1 more source
, 1998 不论是材料的断裂强度还是结构的承载能力均存在着明显的“尺度效应”。该文旨在总结断裂力学中的相似方法、无量纲数及其断裂力学中有关的尺度率 ...
赵亚溥
core +1 more source
Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT Lignin hydrogenolysis is a promising route to separable aromatic monomers, yet practical upgrading is still hindered by macromolecular mass‐transfer limitations and the aggregation/deactivation of metal sites. Herein, we propose a “dual‐confinement” strategy to construct ultrafine Ru nanoclusters supported on lignin‐based N‐doped hierarchical ...
Tianjin Li +11 more
wiley +1 more source