Firing sol-gel alumina particles

Details Firing sol-gel alumina particles Firing sol-gel alumina particles

1995-04-05

1998-03-10

Husar, John M.

Solid material comminution or disintegration

Processes

241 23, 241 27, B02C 1900, B02C 1912

Patent

active

057251622

ABSTRACT:
Sol-gel alumina that is dried but unfired can be explosively comminuted by feeding the dried gel into a furnace held at temperatures above those at which vaporizable materials are eliminated from the particles of gel. At suitably elevated temperatures the firing is sufficient to form fully densified alpha alumina particles of a size suitable for direct use as abrasive grits.

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patent: 5076980 (1991-12-01), Nogues et al.
patent: 5190567 (1993-03-01), Tamamaki et al.
patent: 5413985 (1995-05-01), Thome et al.

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