共搜索到25744条信息,每页显示10条信息,共2575页。用时:0小时0分0秒435毫秒
......
度. 关键词:7055铝合金;时效;淬火敏感效应 中图分类号:TG 146.1 文献标识码:A Influence of aging on quench sensitivity effect of7055 aluminum alloy ZHANG Xin-ming, LIU Sheng-dan, YOU Jiang-hai, ZHANG Chong, ZHANG Xiao-yan (School of Materials Science and Engineering, Central South University, Changsha 410083, China) Abstract: The influence of aging on the quench sensitivity effect......
and provide accurate parameters for electron devices. Key words: K-shell; cross section; relativistic effect 原子的内壳层电子碰撞电离截面在许多方面有重要的应用,如电子探针显微分析(EPMA),俄歇电子谱仪(AES),电子能损谱仪(EELS)及聚变等离子体中杂质的诊断,都迫切需要精确的有关电子致原子......
Magneto-Caloric Effect of Gd5Si2Ge2Compounds under Different Processing Conditions Zeng Hong1,Zhang Jiuxing1,Niu Peili1,Yue Ming1 (1.Key Laboratory of Advanced Functional Materials, Ministry of Education, Beijing University of Technology,Beijing 100022, China) Abstract:The magneto-caloric effect of Gd5 Si2Ge2 compounds produced by various techniques is investigated in terms......
......
diamond grinding agents, the surface seondary scratch is avoided, and easpecially, the new grinding material is found to deliver a ‘repairing’ effect on the marcoscopic surafce defects of pure Al. Key words: Al62Cu25.5Fe12.5 quasicrystals; grinding material; repairing effect 研磨抛光是一种重要的构件表面光整加工技术.金属材料的研磨抛光处理主要可分为机械和非机械型两类[1].在机械研磨抛光中,金刚石磨料以其超高的硬度及稳定性,适用于众多金属材料的研磨抛光处理,可使样品表面的粗糙度/光泽度达到相应的工业标准.而对于铝,镁和铜等......
disturbing effect during nanosized particle nucleation. This effect can prevent particles from enlarging and aggregation and make an absent oxygen circumstance during nanosized SnO2 nucleation... material; tin oxide; surface-interface effect 纳米材料所具有的"界面效应", "量子尺寸效应"和"宏观量子隧道效应"使其在结构, 光电, 磁学和化学性质等方面表现出特异性能[1-5]. 二氧化锡是一种宽带隙N型半导体(Eg≈3.50eV), 折射率约为2.0. 经掺杂的纳米二氧化锡具有特异的光电特性和气敏特性, 在许多领域有广泛的应......
......
J. Cent. South Univ. (2017) 24: 1684-1695 DOI: 10.1007/s11771-017-3575-9 Perturbation effect of rock rheology under uniaxial compression GAO Yan-fa(高延法)1, HUANG Wan-peng(黄万朋)2, 3, QU Guang-long(曲广龙... state is defined as the rock rheological perturbation effect. This work presents a new experimental system for investigating the rock rheological perturbation effect with experiments on medium-hard red......
......