共搜索到1996条信息，每页显示10条信息，共200页。用时：0小时0分0秒360毫秒
nitrogen. During infiltration Si3N4 reacted with aluminium to form Si and AlN, the growth of composite was found to proceed in two ways, depending on the Al2O3 content in the initial preform. Firstly... atmosphere for the observed infiltration. 3.2 Growth of composite Infiltration experiments were carried out on two types performs, Si3N4 preform and Si3N4-10%Al2O3 preform. 10%Al2O3 was added......
Oxidation mechanisms of C-SiC-TaC-C composites prepared by chemical vapor infiltration CHEN Zhao-ke(陈招科), XIONG Xiang(熊翔), HUANG Bai-yun(黄伯云), LI Guo-dong(李国栋), XIAO Peng(肖鹏), WANG Ya-lei(王雅雷... composites by chemical vapor infiltration (CVI) methods. The oxidation-resistance properties of C-SiC-TaC-C composites were studied by X-Ray diffractometry (XRD), JEOL-6360LV scanning electronic microscopy......
SUPERPLASTICITY OF A SiCw/2024 Al COMPOSITE MADE BY PRESSURE INFILTRATION L.Cai1,X.J.Xu1,W.Wang1 (1.JiangsuUniversity of Science and Technology, Zhenjiang 212013, China) Abstract:The superplastic characteristics of the β-SiC whisker reinforced 2024 aluminum com-posite, fabricated by pressure infiltration and hot-rolling after extrusion, were inves-tigated. The composite has a fine grain size......
......
Preparation of Machinable Y-TZP/LaPO4 Composite Ceramics by Liquid Precursor Infiltration 李秀华1,周振君1,杨正方1,袁启明1 (1.Key Laboratory for High-Temperature Structural Ceramics and Engineering Ceramics... different LaPO4 contents were obtained by infiltration and pyrolysis cycles. The machinability and mechanical properties of materials were investigated. The results show that the machinable Y-TZP/LaPO4......
] Silliman S E. Particle transport through two-dimensional, saturated porous media: influence of physical structure of the medium[J]. Journal of Hydrology, 1995, 167: 79-98. [10] 刘想平, 侯立鹏. 油田注入水中固体颗粒对地层..., a mathematic model describing the law of particles sedimentation and seepage in dump was built. The theoretical solution of one-dimensional model resulted by finite difference method and a simulation......
Progress in oxygen behaviors in two-dimensional thin filmsGuang-Hua Yu,Wen-Ling Peng,Jing-Yan ZhangDepartment of Materials Physics and Chemistry, University of Science and Technology Beijing摘 要:With the development of spintronics,the investigation on the behavior of oxygen in two-dimensional materials has never ceased.On account of its lively nature......
percentage of infiltration is 86% in the first two hours of rainfall implementation. Then the percentage of infiltration gradually reduces with time due to the increase in surface runoff. After 6 h...J. Cent. South Univ. Technol. (2009) 16: 0297-0302 DOI: 10.1007/s11771-009-0051-1 Influences of rainfall infiltration on stability of accumulation slope by in-situ monitoring test ZHOU Zhong(周......
Effect of Mg and Si on infiltration behavior of Al alloys pressureless infiltration into porous SiCp preformsShu-bin Ren,Xiao-yu Shen,Xuan-hui Qu,and Xin-bo He School of Materials Science and Engineering,University of Science and Technology Beijing,Beijing 100083,China摘 要:The effect of Mg and Si additon to Al matrix on infiltration kinetics and rates......
Two-dimensional PtRu Nanoclusters Carbon Based Electrocatalysts for Methanol Oxidation胡忠良1,QIN Shilin2,LI Zhaohui2,ZHU Yirong1,LIU Weijian11. College of Metallurgy and Material Engineering, Hunan... performance was reported. Two-dimensional(2 D) PtRu nanoclusters have been successfully deposited on graphene oxide and carbon black supports. Compared with the commercial 3 D E-TEK PtRu samples......
