共搜索到3826条信息,每页显示10条信息,共383页。用时:0小时0分0秒265毫秒
mechanism of surface ceramic coating on aluminum alloy Abstract: The ceramic coatings were developed by plasma enhanced electrochemical reaction technology. The surface ceramic coating on aluminum alloy was investigated by means of XRD, XPS, SEM and TEM. The phase structure of the ceramic coating includes γ Al 2O 3, AlPO 4 and CoO. The forming process of the ceramic coating......
STUDY ON THE THRESHOLD VALUE OF CERAMIC MICROCRACK PROPAGATION宋显辉,郑兆佳摘 要:<正>The fatigue behavior of alumina and silicon car-bide has been investigated in this paper.Once visiable macrocrack on ceramic materials appears,the specimen ruptures due tothe high speed of crack propagation and small ultimate strain.It is indicated that the bending fatigue......
Preparation of continuous Si-Fe-C-O functional ceramic fibers CHEN Zhi-yan(陈志彦)1, LI Xiao-dong(李效东)2, WANG Jun(王 军)2, LI Wen-fang(李文芳)1 1. School of Mechanical Engineering, South China University of Technology, Guangzhou 510640, China; 2. Key Laboratory of Ceramic Fibers and Composites, National University of Defense Technology,Changsha 410073, China Received 16 January 2007; accepted 27......
infiltration using porous Si3N4 ceramic as preform. The average grain size of SiC was 30 nm. Relationship between SiC content and relative complex permittivity of Si3N4-SiC within the frequency range... the content of SiC increased from 0 to 10 vol.%. The Si3N4-SiC ceramic with 3 vol.% SiC achieved a reflection loss below 10 dB (90% absorption) at 8.6-11.4 GHz, and the minimum value was 27.1 dB at 9.8......
Inelastic constitutive equation of plasma-sprayed ceramic thermal barrier coatingsMasayuki ARAIMaterials Science Research Laboratory, Central Research Institute of Electric Power Industry摘 要:Ceramic thermal barrier coatings (TBCs) are a very important technology for protecting the hot parts of gas turbines (GTs) from a high-temperature environment......
Thermal decomposition and mechanical properties of hydroxyapatite ceramic YANG Chun(杨 春)1, 2, GUO Ying-kui(郭英奎)1, ZHANG Mi-lin(张密林)2 1. College of Materials Science and Engineering, Harbin...; Abstract: Pure hydroxyapatite (HAP) ceramic and HAP composite ceramic with B2O3 were prepared by isostatic press forming and pressureless sintering. The relationships between thermal decomposition ratio......
; 文章编号:1672-7207(2013)09-3925-08 Effect of pre-ozonation on filtration of micro-polluted drinking water using ceramic membranes with different pore sizes GUO Jianning1, ZHANG... of pre-ozonation on the performance of ceramic membranes was investigated with an ozone-ceramic membrane hybrid testing system. Three ceramic membranes with different pore size were tested with raw......
......
Microstructures and Adhesive Strength of Three Kinds of Ceramic Coatings邱关明,崔彤,李喜坤,丘泰,姜茂发,刘立新摘 要:In gas turbine engine, the study of ceramic thermal... microfractographs and adhesive strength of three kinds of zirconia plasma-sprayed ceramic coating were investigated. The results indicated that nanostructured zirconia coating have higher adhesive......
......