Abrasive tool making process – material – or composition – Miscellaneous
Patent
1992-06-17
1993-08-17
Bell, Mark L.
Abrasive tool making process, material, or composition
Miscellaneous
51309, 501127, B24D 300
Patent
active
052364712
ABSTRACT:
A sintered material, especially usuable as an abrasive, based on .alpha.-aluminum oxide is produced from Al(OH).sub.3 or aluminum oxide calcined at a lower temperature. Aluminum hydroxide resulting in the Bayer process can be used as the Al(OH).sub.3. The sintered material is distinguished by a crystallite size of standard <0.5 .mu.m, high density and great hardness.
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Bell Mark L.
Lonza Ltd.
Thompson Willie J.
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