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MORPHOLOGIES AND ADHESION STRENGTH OF DIAMOND FILMS DEPOSITED ON WC-6-PERCENT-CO CEMENTED CARBIDES WITH DIFFERENT SURFACE CHARACTERISTICS

被引：10
作者：
PENG, XL
GAN, ZP
机构：
[1] Beijing General Research Inst of, Mining and Metallurgy, Beijing, China
来源：
THIN SOLID FILMS | 1994年 / 239卷 / 01期
关键词：
D O I：
10.1016/0040-6090(94)90106-6
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Diamond films were deposited on YG(6)(WC-6%Co) cemented carbides with different surface characteristics using hydrogen and ethyl alcohol as the feed gases in a hot filament assisted chemical vapour deposition system. The synthesized diamond films were examined by scanning electron microscopy, X-ray diffraction and Raman spectroscopy. It was found that cobalt near the surface of cemented carbides was very detrimental to diamond deposition and the surface characteristics of substrates had a strong influence on the diamond-substrate adhesion. Grinding test results showed that the adhesion strength of diamond to the lapped substrates of smooth surface micro-topographies was very poor and the films flaked severely during the grinding process. However, the diamond films demonstrated good adhesion to substrates with rough surface micro-topographies.
引用
收藏
页码：47 / 50
页数：4
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