Nanoindentation and nanoscratching of hard coating materials for magnetic disks

Technical Report · Fri Dec 30 23:00:00 EST 1994

DOI:https://doi.org/10.2172/34426· OSTI ID:34426

Tsui, T Y; Pharr, G M ^[1]; Oliver, W C ^[2]; Chung, Y W; Cutiongco, E C ^[3]; Bhatia, C S; White, R L ^[4]; Rhodes, R L; Gorbatkin, S M ^[5]

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1. Rice Univ., Houston, TX (United States). Dept. of Materials Science
2. Nano Instruments, Inc., Knoxville, TN (United States)
3. Northwestern Univ., Evanston, IL (United States). Dept. of Materials Science and Engineering
4. IBM Storage Systems Div., San Jose, CA (United States)
5. Oak Ridge National Lab., TN (United States). Solid State Div.

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.

• Research Organization: Oak Ridge National Lab., TN (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States); Texas Advanced Research Program, TX (United States); Department of Defense, Washington, DC (United States)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 34426
• Report Number(s): CONF-941144--90; ON: DE95008776; CNN: Grant 003604-024
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
99 GENERAL AND MISCELLANEOUS
BORON OXIDES
CARBON COMPOUNDS
CARBON NITRIDES
EXPERIMENTAL DATA
HYDROGEN COMPOUNDS
LUBRICATING PROPERTIES
MAGNETIC DISKS
MECHANICAL PROPERTIES
PROTECTIVE COATINGS