Dense polycrystalline silicon carbide

Details Dense polycrystalline silicon carbide Dense polycrystalline silicon carbide

1974-01-08

1976-05-04

Vertiz, Oscar R.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

423345, C04B 3552, C04B 3570

Patent

active

039544834

ABSTRACT:
A dense silicon carbide material having improved electrically conducting properties is disclosed which is prepared by forming a homogeneous dispersion of silicon carbide, a sufficient amount of boron nitride, and optionally a boron containing additive and hot pressing the dispersion at a sufficient temperature and pressure whereby a dense substantially nonporous ceramic is formed. The silicon carbide material can be machined by electrical discharge machining or by electrochemical machining.

REFERENCES:
patent: 2887393 (1959-05-01), Taylor
patent: 2916460 (1959-12-01), Van Der Beck
patent: 3409402 (1968-11-01), Addamiano
patent: 3554717 (1971-01-01), Shaffer et al.
patent: 3767371 (1973-10-01), Wentorf et al.
Journal of Amer. Ceram. Soc. -- Vol. 39 No. 11 -- pp. 386-389 Pressure Sintered S.C. -- Alliegro et al.

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