Friction and cutting properties of hot-filament chemical vapor deposition micro- and fine-grained diamond coated silicon nitride inserts

被引：0

作者：

Yang G.-D. ^{[1
]}

Shen B. ^{[1
]}

Sun F.-H. ^{[1
]}

机构：

[1] School of Mechanical Engineering, Shanghai Jiaotong University

来源：

Journal of Shanghai Jiaotong University (Science) | 2010年 / 15卷 / 5期

基金：

中国国家自然科学基金;

关键词：

friction and wear; glass fiber reinforced plastics (GFRP); hot-filament chemical vapor deposition (HFCVD); silicon nitride;

D O I：

10.1007/s12204-010-1043-x

中图分类号：

学科分类号：

摘要：

The micro-crystalline diamond (MCD) and fine-grained diamond (FGD) films are deposited on commercial silicon nitride inserts by the hot-filament chemical vapor deposition (HFCVD) method. The friction and cutting properties of as-deposited MCD and FGD films coated silicon nitride (Si3N 4) inserts are comparatively investigated in this study. The scanning electron microscopy (SEM) and Raman spectroscopy are adopted to study the characterization of the deposited diamond films. The friction tests are conducted on a ball-on-plate type reciprocating friction tester in ambient air using Co-cemented tungsten carbide (WC-Co), Si3N4 and ball-bearing steel (BBS) balls as the mating materials of the diamond films. For sliding against WC-Co, Si3N4 and BBS, the FGD film presents lower friction coefficients than the MCD film. However, after sliding against Si3N4, the FGD film is subject to more severe wear than the MCD film. The cutting performance of as-deposited MCD and FGD coated Si3N4 inserts is examined in dry turning glass fiber reinforced plastics (GFRP) composite materials, comparing with the uncoated Si3N4 insert. The results indicate that the lifetime of Si3N4 inserts can be prolonged by depositing the MCD or FGD film on them and the FGD coated insert shows longer cutting lifetime than the MCD coated one. © 2010 Shanghai Jiaotong University and Springer-Verlag Berlin Heidelberg.

引用

页码：519 / 525

页数：6

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