Tribological characteristics of SiC ceramics in high-temperature and high-pressure water

Journal Article · Fri Jul 01 04:00:00 EDT 1994 · Journal of the American Ceramic Society; (United States)

DOI:https://doi.org/10.1111/j.1151-2916.1994.tb07061.x· OSTI ID:7166567

Kitaoka, Satoshi ^[1]; Tsuji, Toshihide; Katoh, Toshio ^[2]; Yamaguchi, Yoshimi; Kashiwagi, Kazumi ^[3]

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1. Japan Fine Ceramics Center, Nagoya (Japan). Research and Development Lab. Nagoya Univ. (Japan). Dept. of Nuclear Engineering
2. Nagoya Univ. (Japan). Dept. of Nuclear Engineering
3. Japan Fine Ceramics Center, Nagoya (Japan). Research and Development Lab.

The effects of temperature and sliding speed on the tribological behavior of a SiC ceramic by sliding on the same material in deoxygenated water were investigated from room temperature to 300 C under the corresponding saturated vapor pressures. The friction coefficient and specific wear rates of both plates and disks increased at elevated temperatures at all sliding speeds, but decreased with increasing sliding speed at 120 and 300 C. Fine mirrorlike worn surfaces were observed without wear debris under all sliding conditions. The wear mechanism appears to consist of hydrothermal oxidation of SiC and dissolution of reaction products such as silica.

• OSTI ID: 7166567
• Journal Information: Journal of the American Ceramic Society; (United States), Journal Name: Journal of the American Ceramic Society; (United States) Vol. 77:7; ISSN 0002-7820; ISSN JACTAW
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360203* -- Ceramics
Cermets
& Refractories-- Mechanical Properties
360205 -- Ceramics
Cermets
& Refractories-- Corrosion & Erosion
CARBIDES
CARBON COMPOUNDS
CERAMICS
CHEMICAL REACTIONS
FRICTION
OXIDATION
PRESSURE DEPENDENCE
SILICON CARBIDES
SILICON COMPOUNDS
SLIDING FRICTION
TEMPERATURE DEPENDENCE
WEAR