Microstructure and electrode discharge machining of TIN/Si3N4 composites

被引:0
|
作者
Liu, CC [1 ]
Huang, JL [1 ]
机构
[1] Natl Cheng Kung Univ, Dept Mat Sci & Engn, Tainan 701, Taiwan
关键词
Tin/Si3N4; composite; electrical discharge machining;
D O I
10.4028/www.scientific.net/MSF.475-479.1337
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Conductive TiN/Si3N4 ceramic composites were processed by electrical discharge machining (EDM) and their microstructure and conductivity investigated. A low electrical resistivity of 1.25 X 10(-3) ohm.cm was obtained in 40vol%TiN/Si3N4 composite. The whole process of tool electrode wear is evaluated by sinker-EDM. The machined surfaces of TiN/Si3N4 ceramic composites were examined by scanning electron microscopy (SEM) and profilometry to determine the surface finish. Micropores of 700 mu m in depth and 70 mu m in in diameter were successfully machined in TiN/Si3N4 composites by the micro-EDM method.
引用
收藏
页码:1337 / 1340
页数:4
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