High pressure sintering behavior of polycrystalline diamond with tungsten

被引：2
|
作者：
Wang, Yanfei [1 ]
Wang, Kaixue [1 ]
Tan, Ning [1 ]
Liu, Chengliang [1 ]
Li, Yu [1 ]
Kou, Zili [1 ]
机构：
[1] Sichuan Univ, Inst Atom & Mol Phys, Chengdu 610064, Peoples R China
来源：
HIGH PRESSURE RESEARCH | 2011年 / 31卷 / 03期
基金：
中国国家自然科学基金;
关键词：
polycrystalline diamond; tungsten; high pressure and high temperature; sintering; electrical resistance; SUB-CARBIDE W2C; AL; MICROSTRUCTURE; COMPACTS;
D O I：
10.1080/08957959.2011.598152
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Polycrystalline diamond was investigated under high pressure and high temperature of 5.0 GPa and 1100-1500 degrees C in the presence of tungsten. In situ resistance measurements indicated that reactions between diamond and tungsten happened at about 960 degrees C. Phase analysis demonstrated that WC increased and meta-stability of W2C decreased clearly at the higher temperature. It is clear from the characterization of the sintered body that the electrical resistance decreased and the density of specimens increased as the sintering temperature rose. The specimen sintered at 1500 degrees C has a homogeneous microstructure and good conductivity.
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页码：419 / 427
页数：9
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