High pressure and high temperature sintering of fine-grained PCD using bi-layered assembly

被引：5

作者：

Zhang, Yongfang ^{[1
]}

Kou, Zili ^{[1
]}

Li, Yongjun ^{[1
]}

Zhang, Jian ^{[1
]}

Qin, Jiaqian ^{[1
]}

Fang, Leiming ^{[1
]}

机构：

[1] Sichuan Univ, Inst Atom & Mol Phys, Chengdu 610064, Peoples R China

来源：

HIGH PRESSURE RESEARCH | 2009年 / 29卷 / 02期

基金：

中国国家自然科学基金;

关键词：

polycrystalline diamond compacts; high pressure and high temperature; sintering; diamond-diamond direct bonding; POLYCRYSTALLINE DIAMOND; BEHAVIOR; COMPACTS; GROWTH;

D O I：

10.1080/08957950802593774

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

This work presents the study of the synthesis and characterization of polycrystalline diamond (PCD) compacts using a bi-layered assembly method and solving the catastrophic nature of failure molding when using single-layered assembly and 0.5-1.5m diamond powder as starting materials. The well-sintered PCD compacts are prepared on WC-16wt% Co substrates at temperatures from 1350C to 1500C for 15min at static high pressure of 5.2 GPa, using the bi-layered assembly method. According to our scanning electron microscope observation, the specimens sintered at 1450C have a homogeneous microstructure. The graphitization of the diamond appears at 1500C according to X-ray diffraction analysis. The specimens sintered at 1450C show the best performance according to the wear resistance test.

引用

页码：325 / 334

页数：10

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