Ultra-low friction properties of carbon nitride tantalum coatings in the atmosphere

被引：25
作者：
Tokoroyama, Takayuki [1 ]
Hattori, Takafumi [2 ]
Umehara, Noritsugu [2 ]
Kousaka, Hiroyuki [2 ]
Manabe, Kazuyoshi [3 ]
Kishi, Misato [3 ]
Fuwa, Yoshio [3 ]
机构：
[1] Akita Univ, Dept Mech Engn, 1-1 Tegata Gakuenmachi, Akita 0108502, Japan
[2] Nagoya Univ, Dept Mech Engn, Chikusa Ku, Furo Cho, Nagoya, Aichi 4648603, Japan
[3] Toyota Motor Co Ltd, Mat Dev Div, Tribol Mat Dept, 1 Toyota Cho, Toyota 4718572, Japan
来源：
TRIBOLOGY INTERNATIONAL | 2016年 / 103卷
关键词：
CNx; Tantalum; In atmosphere; XPS; DIAMOND-LIKE CARBON; DLC FILMS; TRIBOLOGICAL PROPERTIES; HYDROGEN; GAS; PERFORMANCE; TRIBOCHEMISTRY; PRESSURE; BALL;
D O I：
10.1016/j.triboint.2016.07.015
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
In this research, a tantalum (Ta) addition to the Carbon Nitride (CNx) coating was focused on to obtain its high hardness and a low-friction coefficient by varying the graphite-like structure at the topmost surface. A CNx:Ta coating was synthesized by a co-sputtering technique with tantalum set on a carbon target, and then XPS analysis was conducted for a better understanding of chemical bonding. The friction test was conducted in the atmosphere, and basic mechanical property of hardness was measured by Nanoindentation hardness tester. The XPS analysis revealed that TaC and TaNx in the coating bonded with some sort of oxygen and also TaC and TaNx did not strongly interact with the carbon structure. The friction coefficient of CN0.22:Ta was observed to be 0.01-0.02 with a built-up transfer layer on the counter material's surface. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：388 / 393
页数：6
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