Evaluation of amorphous diamond-like carbon-nitrogen films as wear protective coatings on thin film media and thin film head sliders
Evaluation of amorphous diamond-like carbon-nitrogen films as wear protective coatings on thin film media and thin film head sliders
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DOI:
10.1109/20.560133
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发表时间:
1997-01-01
影响因子:
2.1
通讯作者:
Judy, JH
中科院分区:
文献类型:
--
作者:
Sivertsen, JM;Wang, G;Judy, JH
As the magnetic data storage industry strives to achieve ultra-high recording densities requiring fly heights of lass than one microinch, the tribology of the head-disk interface (HDI) is a limiting factor in disk drive design. Amorphous diamond-like-carbon (DLC) films have been the materials of choice for wear-protective coatings. Various amorphous DLC type coatings have been developed. The earliest DLC material was DC magnetron sputtered pure carbon films. Recent developments have produced C:H (hydrogenated-carbon) and C:N (carbon-nitrogen) films with greater wear-resistance than pure C fillm. Our intent is to describe and evaluate the wear-resistance performance of amorphous C:N films as wear-protective overcoats on thin film media and thin film sliders. Both C:H and C:N films have demonstrated superiority over DC magnetron sputtered pure carbon films. The bond character, microhardness, surface roughness features, and the physical nature of initial wear damage influence wear-resistance performance significantly. A recent report of nano-indentor measurements and wear-resistance performance confirmed the superiority of RF diode and DC magnetron Facing Target Sputtering (FTS) of thin C:N coatings over other DLC films.