Abrasive grain with metal oxide coating, method of making same and abrasive products
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United States of America Patent
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Dec 12, 1995
Issued Date -
N/A
app pub date -
Mar 11, 1994
filing date -
Jul 28, 1992
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of preparing preferred abrasive grain material is provided. The method involves steps of coating a non-sintered aluminum base particles with a metal alkoxide containing coating; heating to convert the coating to a metal oxide coating; and then sinter the base particles to provide sintered particles having an alpha-alumina-based core with an autogenously bonded metal oxide coating. The invention also concerns improved abrasive grain materials and abrasive products including the improved abrasive grain materials therein.
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