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Nanoindentation and Nanoscratching of Hard Coating Materials for Magnetic Disks

Published online by Cambridge University Press:  21 February 2011

T. Y. Tsui ,
G. M. Pharr ,
W. C. Oliver ,
Y. W. Chung ,
E. C. Cutiongco ,
C. S. Bhatia ,
R. L. White ,
R. L. Rhoades  and
S. M. Gorbatkin
T. Y. Tsui
Affiliation:
Department of Materials Science, Rice University, P.O. Box 1892, Houston, TX 77251
G. M. Pharr
Affiliation:
Department of Materials Science, Rice University, P.O. Box 1892, Houston, TX 77251
W. C. Oliver
Affiliation:
Nano Instruments, Inc., P.O. Box 14211, Knoxville, TN 37914
Y. W. Chung
Affiliation:
Dept. of Materials Science and Engineering, Northwestern University, Evanston, IL 60208
E. C. Cutiongco
Affiliation:
Dept. of Materials Science and Engineering, Northwestern University, Evanston, IL 60208
C. S. Bhatia
Affiliation:
IBM Storage Systems Division, 5600 Cottle Road, San Jose, CA 95193
R. L. White
Affiliation:
IBM Storage Systems Division, 5600 Cottle Road, San Jose, CA 95193
R. L. Rhoades
Affiliation:
Oak Ridge National Laboratory, Solid State Division, P.O. Box 2008, Oak Ridge, TN 37831
S. M. Gorbatkin
Affiliation:
Oak Ridge National Laboratory, Solid State Division, P.O. Box 2008, Oak Ridge, TN 37831
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Abstract

Nanoindentation and nanoscratching experiments have been performed to assess the mechanical and tribological behavior of three thin film materials with potential application as wear resistant coatings for magnetic disk storage: (1) hydrogenated-carbon (CHx); (2) nitrogenated-carbon (CNx); and (3) boron suboxide (BOx). The hardness and elastic modulus were measured using nanoindentation. Ultra-low load nanoscratching tests were performed to assess the relative scratch resistance of the films and measure their friction coefficients. The mechanical and tribological performance of the three materials are discussed and compared.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 356: Symposium B2 – Thin Films: Stresses and Mechanical Properties V , 1994 , 767
Copyright
Copyright © Materials Research Society 1995

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