Properties of ta-C Films for Tools and Machinery Parts

被引：10
|
作者：
Praessler, Frank [1 ]
Grimm, Werner [1 ]
Chudoba, Thomas [2 ]
机构：
[1] INOVAP Vakuum & Plasmatech GmbH Dresden, D-01454 Grosshansdorf, Germany
[2] ASMEC Adv Surface Mech, D-01454 Grosshansdorf, Germany
来源：
PLASMA PROCESSES AND POLYMERS | 2009年 / 6卷
关键词：
DLC; indentation hardness; scratch; ta-C; wear;
D O I：
10.1002/ppap.200931008
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The pulsed vacuum arc discharge is an effective technology for the deposition of ta-C coatings on tools and machinery parts. The properties of these carbon coatings differ substantially from conventional hard nitride films particularly with regard to hardness and wear-resistance. The paper shows analytical results of ta-C films in comparison to such hard coatings. Thereby different methods are applied for determination of adhesion, friction, wear-resistance, and indentation hardness. A simple correlation was found between indentation hardness and wear-resistance over a wide range of hard materials. Furthermore, all investigated films have a strong adhesion on steel in conventional Rockwell tests. But in scratch tests with increasing normal forces brittle ta-C films delaminate at lower forces from the surface compared to nitride coatings.
引用
收藏
页码：S468 / S472
页数：5
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