Corrosion protection of ultra-thin ta-C films for recording slider applications at varied substrate bias

被引:12
作者
Tan, Manlin [1 ]
Yan, Yiwu [1 ]
Zhang, Huayu [1 ]
Han, Xiao [2 ]
Zhu, Jiaqi [2 ]
Han, Jiecai [1 ,2 ]
Ma, Hontao [3 ]
机构
[1] Harbin Inst Technol, Shenzhen Grad Sch, Shenzhen 518055, Peoples R China
[2] Harbin Inst Technol, Ctr Composite Mat, Harbin 150001, Peoples R China
[3] SAE Technol Dev Dongguan Co Ltd, Dongguan 523087, Peoples R China
关键词
Tetrahedral amorphous carbon; Recording slider; Surface energy; Corrosion protection; TETRAHEDRAL AMORPHOUS-CARBON; DIAMOND-LIKE CARBON; ARC DEPOSITION; EVOLUTION; COATINGS; DENSITY; ENERGY; RAMAN;
D O I
10.1016/j.surfcoat.2008.08.077
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Ultra-thin tetrahedral amorphous carbon (ta-C) films have been prepared by filtered catholic vacuum arc system for recording slider applications. In order to study the corrosion behavior of the slider coatings deposited at different substrate bias, the micro-structure and surface properties of the ta-C films were respectively investigated in terms of Raman spectroscopy, atomic force microscopy, water contact angle and corrosion measurements. Results showed that a very smooth ta-C film with lowest surface energy and highest sp(3) bonding content was obtained at the medium bias voltage of 100 V. However, as to the protection against corrosion, the optimum bias was found to be greater than that giving the maximum diamond-like properties. (C) 2008 Published by Elsevier B.V.
引用
收藏
页码:963 / 966
页数:4
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