Process for preparing semiconducting silicon carbide sintered bo

Plastic and nonmetallic article shaping or treating: processes – Carbonizing to form article – With carbonizing – then adding carbonizable material and...

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106 44, 252 623C, 252504, 252516, 264 296, 264 65, 264125, C04B 3556, C04B 3558, C04B 3564

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042094747

ABSTRACT:
A silicon carbide sintered body exhibiting N-type semiconductivity is produced by shaping a mixture of .beta.-silicon carbide, boron additive and a carbonaceous additive into a green body and sintering the body in an atmosphere containing nitrogen to produce a sintered body having a density of at least about 90% and pores which are substantially non-interconnecting.

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patent: 3954483 (1976-05-01), Prochazka
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patent: 3966855 (1976-06-01), Hollenberg et al.
patent: 4004934 (1977-01-01), Prochazka
patent: 4133689 (1979-01-01), Stroke

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