Method of manufacturing a powdery AlN

Details Method of manufacturing a powdery AlN Method of manufacturing a powdery AlN

1993-08-11

1995-10-24

Langel, Wayne

Chemistry of inorganic compounds

Nitrogen or compound thereof

Binary compound

C01B 21072

Patent

active

054607949

ABSTRACT:
A method of manufacturing a powdery AlN comprising steps of: a) providing an airtight vessel, b) preparing a powdery Al and a solid-state nitride, c) wrapping up the powdery Al and the solid-state nitride with an igniting agent, d) putting the wrapped Al and nitride into the vessel, e) evacuating the airtight vessel and filling therein with an N gas, and f) igniting the igniting agent. Since the powdery Al and solid-state nitride are completely wrapped up with an igniting agent, the reaction can be more rapidly and fully completed under a relatively low pressure. In addition, the present method can be used to obtain an AlN having a high purity.

REFERENCES:
patent: 3607046 (1971-09-01), Little et al.
patent: 4877759 (1989-10-01), Holt et al.
J. Birch Holt, "Combustion Synthesis: A New Area of Research in Materials Science", Energy & Technology Review, Lawrence Livermore National Laboratory (Jan., 1984).
Marc Costantino et al., "High Pressure Combustion Synthesis of Aluminum Nitride" J. Mater. Res., vol. 6 No. 11, Nov. 1991, 2397.

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