Sintering Diamond/Cemented Carbides by the Pulse Plasma Sintering Method

被引：39
作者：
Michalski, Andrzej [1 ]
Rosinski, Marcin [1 ]
机构：
[1] Warsaw Univ Technol, Fac Mat Sci & Engn, Warsaw, Poland
来源：
JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2008年 / 91卷 / 11期
关键词：
D O I：
10.1111/j.1551-2916.2008.02738.x
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Under the conditions of thermodynamic instability, we produced dense sintered composites built of diamond particles (30 vol%) and a cemented carbide matrix. The composites were consolidated by high-current electric pulses at a temperature of about 1100 degrees C and load of 75 MPa for 5 min. The diamond particles are strongly bound with the cemented carbide matrix, by a transition layer composed of a solid solution of carbon and tungsten in cobalt. No graphite precipitates were found in the sintered composites, as examined by microstructure observations, examinations of the phase composition, and an analysis of the Raman scattering spectra. The hardness of the diamond/cemented carbide was 23 GPa.
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收藏
页码：3560 / 3565
页数：6
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