Process for preparing aluminum nitride powder

Details Process for preparing aluminum nitride powder Process for preparing aluminum nitride powder

1985-12-23

1987-07-14

Lechert, Jr., Stephen J.

Compositions: ceramic

Ceramic compositions

Refractory

264122, 423412, 501 92, 501100, C04B 3558

Patent

active

046802789

ABSTRACT:
A process for preparing aluminum nitride powder, which comprises mixing (i) aluminum hydroxide powder, (ii) carbon powder or a substance capable of forming carbon powder by heating and (iii) at least one of additives selected from the group consisting of aluminum nitride powder, silicon nitride powder, silicon carbide powder and powder of substances capable of forming the powder corresponding to these powders, and baking the mixture thus obtained in a non-oxidative atmosphere containing nitrogen. The process is useful for preparing aluminum nitride powder having small particle size and small particle size distribution and also having a uniform shape of particles, at a lower temperature and in a shorter period of time.

REFERENCES:
patent: 4354991 (1982-10-01), Suzuki et al.
patent: 4499193 (1985-02-01), Phelps et al.
patent: 4511666 (1985-04-01), Phelps et al.

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