Aluminum nitride articles by carbothermal nitridation

Details Aluminum nitride articles by carbothermal nitridation Aluminum nitride articles by carbothermal nitridation

1988-01-21

1989-08-15

Derrington, James

Plastic and nonmetallic article shaping or treating: processes

Carbonizing to form article

Filaments

264 291, 264 296, 264 297, 264 65, 264 66, C04B 3558

Patent

active

048572462

ABSTRACT:
Aluminum nitride fibers or films are made by carbothermal nitridation of precursor fibers or films which contain a source of alumina and a source of carbon. Improved articles are obtained by providing a stoichiometric excess of carbon, by stabilizing the precursor prior to carbonization and nitridation, by removing excess carbon after nitridation and introducing a sintering aid to promote densification of the final structure.

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Tamamizu et al., Behavior of Yttrium Oxide on Sintering of Ain Proc. of Annual Meeting of the Ceramic Soc. of Japan May 22-24, 1985, pp. 675-676.

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