An improved diamond-like carbon coating with exceptional wear properties

被引：57

作者：

Jarratt, M ^{[1
]}

Stallard, J ^{[1
]}

Renevier, NM ^{[1
]}

Teer, DG ^{[1
]}

机构：

[1] Teer Coatings Ltd, Hartlebury DY10 4JB, Worcs, England

来源：

关键词：

diamond-like carbon; tribology; wear; friction;

D O I：

10.1016/S0925-9635(02)00296-0

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Parameters for the deposition of diamond-like carbon thin films using a hybrid magnetron sputter/plasma-enhanced chemical vapour deposition (PECVD) system have been optimised in order to improve the properties for high load-bearing applications. An extensive tribological testing program has been carried out. The main results from this testing program are described. A typical unlubricated pin-on-disc test in air using a 5-mm-diameter WC-Co pin under a load of 100 N gave a specific wear rate of 9 X 10(-18) m(3) N-1 m(-1) and a coefficient of friction of 0.02. Extremely low counter-surface wear was also observed. Dry cold forming simulation tests, carried out using coated WC-Co balls against tin, indicate much lower friction than for uncoated carbide tools under the same conditions. Due to these properties, the coatings are considered to be suitable for a wide range of industrial applications. Some current applications are described. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：1003 / 1007

页数：5

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