Preparation of group IIIA-VA compounds such as boron nitride, an

Details Preparation of group IIIA-VA compounds such as boron nitride, an Preparation of group IIIA-VA compounds such as boron nitride, an

1989-02-01

1992-06-30

Bell, Janyce

Coating processes

Heat decomposition of applied coating or base material

148437, 420555, 420577, 420576, 420579, 423289, 423290, 423299, 423409, 423412, 4272481, 427255, 427343, 427344, B05D 302, C01B 21064, C01B 2500, C01B 2106

Patent

active

051261685

ABSTRACT:
Lewis base-borane complexes such as (CH.sub.3).sub.2 S.BHBr.sub.2 are utilized as molecular precursors for the formation of both bulk powders, films and coatings of boron nitride. The complexes are subjected to slow heating under an ammonia atmosphere to displace the base and pyrolyze the resulting complex to BN. Analogous processes may be used to prepare Group IIIA-VA compounds of the formula MM' where M is selected from the group consisting of B, Al, Ga, In, and Tl, and M' is selected from the group consisting of N, P, As, Sb and Bi.

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