Aluminum nitride granules and process for the preparation thereo

Details Aluminum nitride granules and process for the preparation thereo Aluminum nitride granules and process for the preparation thereo

1991-06-13

1993-01-26

Group, Karl

Compositions: ceramic

Ceramic compositions

Refractory

501 96, 264117, C04B 3558

Patent

active

051822393

ABSTRACT:
Aluminum nitride granules which are characterized in that (a) they are composed mainly of aluminum nitride, (b) their bulk density ranges from 0.5 to 1.5 g/cc, (c) the mean particle diameter thereof is within the range of 20 to 500 .mu.m, and (d) they have a breaking strength of 0.5 to 5.0 g. The aluminum nitride granules can be prepared by (1) mixing an aluminum nitride powder, a surfactant, a binder and an organic solvent, and optionally, at least one inorganic matter other than aluminum nitride, to form a slurry, (2) granulating the slurry, and (3) heating the resultant granulated particles to form the granules.

REFERENCES:
Dimilia et al, "Dependence of Compaction on the Glass Transition Temperature of the Binder Phase", Ceram. Bull., vol. 62, No. 4, (1983) pp. 484-489.

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