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Effects of rapid quenching on microstructures and electrochemical properties of La0.7Mg0.3Ni2.55Co0.45Bx(x=0-0.2) hydrogen storage alloy ZHANG Yang-huan(张羊换)1, 2, DONG Xiao-ping(董小平)1, WANG Guo... and rapid quenching. The electrochemical performances and microstructures of the as-cast and quenched alloys were investigated. The effects of rapid quenching on the microstructures and electrochemical......
Morphology-Controlled Synthesis of CeO2 Microstructures and Their Room Temperature FerromagnetismFanming Meng1,2,Zhenghua Fan1,Cheng Zhang1,Youdi Hu1,Tao Guan1,Aixia Li11. School of Physics...="ChDivSummary">Gear-shape CeO2 microstructures have been synthesized via a facile hydrothermal method with Ce(NO3)3·6H2O as the cerium source, NH4HCO3 as both the precipitator and the carbon source......
Study on Microstructures and Properties of Electro Brush-plating Composite Coatings HUANG Wan-juan1,GU Zhuo-ming1 (1.Shanghai Maritime University, Shanghai, China) 摘要:In this paper, composite... studied.The microstructure, constitution, microhardness and wear resistance were examined. The results show that,electro brush-plating composite coatings have firner microstructures and higher......
Trans. Nonferrous Met. Soc. China 20(2010) s847-s851 Characterization of surface liquid segregation in SSM-HPDC aluminium alloys 7075, 2024, 6082 and A201 H. M?LLER1, U. A. CURLE1 , E. P. MASUKU1 Materials Science and Manufacturing, Council for Scientific and Industrial Research (CSIR), Pretoria, South Africa Abstract: The surface liquid segregation (SLS) phenomenon in semi......
macro- and sub-structures. The distribution of such microstructures follows certain rules in micro space. Figure 1 shows an example of multi-scale structure over a functional surface machined... surfaces, it is necessary to obtain a multi-scale modelling approach representing both macro geometry and micro details of the surface in one unified model. Based on the fractal geometry theory......
SURFACE EXCITATION PARAMETER IN QUANTITATIVE SURFACE ANALYSIS BY ELECTRON SPECTROSCOPY H.M.Li1,Z.J.Ding1,Z.M.Zhang1,K. Salma1 (1.Hefei National Laboratory for Physical Sciences at Microscale and Department of Physics,University of Science and Technology of China, Hefei 230026, China) Abstract:The investigation of influence of surface effects on the energy spectra of electrons is essential......
J. Cent. South Univ. Technol. (2008) 15: 230-236 DOI: 10.1007/s11771-008-0044-5 Constitutive model of rock based on microstructures simulation YE Zhou-yuan(叶洲元), HONG Liang(洪 亮), LIU Xi-ling(刘希... kinds of damages in rock under varied loads. It is resumed that rock contains many microstructures and a structure of Bingham. The microstructure consists of two embranchments that are the unit......
温交变处理对断口形貌和相组成没有明显影响,均为准解理断裂. 关键词:AZ31镁合金;月球环境温度;力学性能;微观组织 中图分类号:TG146.2 文献标志码:A Mechanical properties and microstructures... temperature change situation, the influence of long time low temperature immersion (-196 ℃) and high-low temperature alternation processing (-196-200 ℃) on the mechanical properties, microstructures......
Effects of Ti addition on microstructures of melt-spun CuCr ribbons WANG You-hong(王宥宏)1,2, SONG Xiao-ping(宋晓平)1, SUN Zhan-bo(孙占波)1, ZHOU Xuan(周 轩)1, GUO Juan(郭 娟)1 1. School of Science, Xi...: The microstructure and resistivity of melt-spun CuCrTi ribbon were studied. The results reveal that the maximal size of the primary Cr particles in the microstructures is below 100 nm by 0.65%-3.8%Ti......
. The diffusion of the matrix metallic element toward the surface is the main manner of the inner stress relaxation. So the convex part on particles surface is pure silver. 3.4 Microstructures of Ag-Y2O3... Internal oxidation thermodynamics and microstructures of Ag-Y alloy WU Chun-ping(吴春萍)1, YI Dan-qing(易丹青)1, CHEN Jing-chao(陈敬超)2, LI Jian(李 荐)1, LIU Hui-qun(刘会群)1, WANG Bin(王 斌)1, FANG Xi-ya(方西亚......