Porous silicon carbide

Details Porous silicon carbide Porous silicon carbide

1994-01-04

1995-08-15

Turner, A. A.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Composite having voids in a component

277 96, 277 962, 277DIG6, 428212, 4283122, 428446, 428698, 428704, 423345, 501 88, 501 90, C04B 3556

Patent

active

054417996

ABSTRACT:
Silicon carbide sintered bodies having controlled porosity in the range of about 3-25 vol % are prepared from raw batches containing a multimodal distribution of silicon carbide particles and comprised of at least a first set of particles having one average grain size and a second set of particles having another average grain size larger than the first set of particles. The resulting pores are 3-5 microns in the largest dimension, with an aspect ratio between about 1/1 and about 3/1 . The porous bodies, e.g., in the form of mechanical seal members, exhibit good tribological properties.

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Lashway, et al., Lubrication Engineering, Jun. 1984, vol. 40, pp. 356-363.

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