Hostname: page-component-78c5997874-g7gxr Total loading time: 0 Render date: 2024-11-17T21:49:09.314Z Has data issue: false hasContentIssue false
  • English
  • Français

Mechanical Properties of Pure Carbon and Carbonnitrogen Coatings on Thin Film Head Sliders

Published online by Cambridge University Press:  15 February 2011

G. Wang ,
A. Strojny ,
J. M. Sivertsen ,
J. H. Judy  and
W. W. Gerberich
G. Wang
Affiliation:
Department of Chemical Engineering and Materials Science
A. Strojny
Affiliation:
Department of Chemical Engineering and Materials Science
J. M. Sivertsen
Affiliation:
Department of Chemical Engineering and Materials Science
J. H. Judy
Affiliation:
Department of Electrical Engineering University of Minnesota, Minneapolis, MN 55455
W. W. Gerberich
Affiliation:
Department of Chemical Engineering and Materials Science
Get access

Abstract

The mechanical properties of pure carbon (C) and carbon-nitrogen (C:N) coatings on thin film head sliders were investigated by continuous drag testing (CDT) and nano-indentation. Comparisons were made in terms of wear protection, elastic modulus and hardness of these two types of carbon films. The C and C:N thin films with various thickness were deposited on thin film head sliders using a facing target sputtering (FTS) system. After 23,000 revolutions of CDT tests, all the testing head sliders which were uncoated and coated with 90 Å C or C:N exhibited some degree of wear damage as indicated in AFM micrographs where that of the uncoated head was the most severe and that of the C:N coated head was the least. Head sliders coated with 1000Å C and C:N were studied under the TriboscopeTM nano-indenter, where load-displacement curves at different maximum loads were recorded. Elastic modulus and hardness were determined from those curves. The results show that elastic modulus and hardness of C:N are greater than that of C. Therefore, one may conclude that both C and C:N behave like a protective coating for the head slider where C:N is better than C, which could be well related to the larger elastic modulus and hardness of C:N.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 436: Symposium CC – Thin Films Stresses and Mechanical Properties VI , 1996 , 345
Copyright
Copyright © Materials Research Society 1997

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1 Wallace, B. L., Bell Syst. Tech. J., vol 30, pp. 1145–1173, Oct. 1951.Google Scholar
2 Grill, , Horng, C. T., Meyerson, B. S., Patel, V. V., and Russack, M. A., US Patent #5, 159,508, October 27, 1992.Google Scholar
3 Bogy, D. B., Yun, X., and Knapp, B. J., Digests of The Magnetic Recording Conference, September 1993.Google Scholar
4 Wang, G., Yeh, T-A., Sivertsen, J. M., Judy, J. H. and Chen, Ga-Lane, Abstracts of The MMM-Intermag Conference, June 1994.Google Scholar
5 Varanasi, S. S., Lauer, J. L., Talke, F. E., Wang, G. and Judy, J. H., Journal of Tribology, 1996, in print.Google Scholar
6 Torng, C. J., Sivertsen, J. M., Judy, J. H. and Chang, C., J. Mater. Res. 5 (1990) 2490.Google Scholar
7 Yeh, T., Lin, C-L., Sivertsen, J. M. and Judy, J. H., IEEE Trans. Magn. MAG-27 (1991) 5163.Google Scholar
8 Tsai, H., Bogy, D. B., J. Vac. Sci. Technol., A5, 3287, 1987.Google Scholar
9 Berger, S. D., McKenzie, D. R., Martin, P. J., Phil. Mag. Lett., 57, 285,1988.Google Scholar
10 Fink, J., Advances in Electronics and Electron Physics, 75, 121, 1989.Google Scholar
11 Doemer, M. F. and Nix, W. D., J. Mater. Res. 1,601 (1986).Google Scholar