Compositions: ceramic – Ceramic compositions – Carbide or oxycarbide containing
Patent
1993-05-25
1995-03-07
Group, Karl
Compositions: ceramic
Ceramic compositions
Carbide or oxycarbide containing
501 81, 501 89, 501 90, 264 44, C04B 3556
Patent
active
053958071
ABSTRACT:
Silicon carbide sintered bodies having controlled porosity in the range of about 2 to 12 vol %. in which the pores are generally spherical and about 50 to 500 microns in diameter, are prepared from raw batches containing a polymer fugitive. Sintered bodies in the form of mechanical seal members exhibit lower power consumption at low PV and, in addition, lower wear rates at high PV in comparison to commercially available silicon carbide seal members.
REFERENCES:
patent: 3969451 (1976-07-01), Floyd et al.
patent: 4179299 (1979-12-01), Coppola et al.
patent: 4230497 (1980-10-01), Schwetz et al.
patent: 4312954 (1982-01-01), Coppola et al.
patent: 4334888 (1988-06-01), Ohba et al.
patent: 4477153 (1988-10-01), Sonuparlak et al.
patent: 4525461 (1985-06-01), Boecker et al.
patent: 4692418 (1987-09-01), Boecker et al.
patent: 4756895 (1988-07-01), Boecker et al.
patent: 4777152 (1988-10-01), Tsukada
patent: 4855263 (1989-08-01), Kawasaki et al.
patent: 4925490 (1990-05-01), Nagai et al.
patent: 4957811 (1990-09-01), Benker et al.
patent: 4997192 (1991-03-01), Nagai et al.
patent: 5080378 (1992-01-01), Kagawa
Seshadri, et al., Ceramic Transactions, Silicon Carbide, '87, vol. 2, pp. 215-226.
Lashway, et al., Lubrication Engineering, Jun. 1984, vol. 40, pp. 356-363.
Knoch, et al., Sintered Alpha Silicon Carbide Pump Bearings--Tribological Materials Optimization to Improve Reliability, Proceedings of the Tenth Int'l Pump Users Symposium, Mar. 1993.
Divakar Ramesh
Lau Sai-Kwing
Group Karl
The Carborundum Company
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