GLTRS--Glenn
TITLE AND SUBTITLE:
Tribological Characteristics and Applications of Superhard Coatings: CVD Diamond, DLC, and c-BN

AUTHOR(S):
Kazuhisa Miyoshi, Masao Murakawa, Shuichi Watanabe, Sadao Takeuchi,
and Richard L.C. Wu

REPORT DATE:
August 1999

FUNDING NUMBERS:
WU-523-22-13-00

PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES):
National Aeronautics and Space Administration
John H. Glenn Research Center at Lewis Field
Cleveland, Ohio 44135-3191

PERFORMING ORGANIZATION REPORT NUMBER:
E-11701

SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES):
National Aeronautics and Space Administration
Washington, DC 20546-0001

REPORT TYPE AND DATES COVERED:
Technical Memorandum

SPONSORING/MONITORING AGENCY REPORT NUMBER:
NASA TM-1999-209189

SUPPLEMENTARY NOTES:
Prepared for the 1999 Applied Diamond Conference/Frontier Carbon Technology Joint Conference cosponsored by NEDO, NIMCR, JFCC, and JNDF, Tsukuba, Japan, August 31-September 3, 1999. Kazuhisa Miyoshi, NASA Glenn Research Center; Masao Murakawa, Shuichi Watanabe, and Sadao Takeuchi, Nippon Institute of Technology, Saitama 345-0826, Japan; and Richard L.C. Wu, K Systems Corporation, 1522 Marsetta Drive, Beavercreek, Ohio 45432. Responsible person, Kazuhisa Miyoshi, organization code 5140, (216) 433-6078.

ABSTRACT:
Results of fundamental research on the tribological properties of chemical-vapor-deposited (CVD) diamond, diamondlike carbon, and cubic boron nitride films in sliding contact with CVD diamond in ultrahigh vacuum, dry nitrogen, humid air, and water are discussed. Furthermore, the actual and potential applications of the three different superhard coatings in the field of tribology technology, particularly for wear parts and tools, are reviewed.

SUBJECT TERMS:
Materials

NUMBER OF PAGES:
12

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1999/TM-1999-209189.pdf
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