Microcrystalline abrasive material and method of manufacture

Details Microcrystalline abrasive material and method of manufacture Microcrystalline abrasive material and method of manufacture

1987-05-15

1988-11-22

Lieberman, Paul

Abrasive tool making process, material, or composition

Miscellaneous

51309, B24D 300

Patent

active

047862920

ABSTRACT:
An abrasive material of great hardness and high tenacity particularly suitable for high-pressure grinding consists essentially of a sintered, microcystalline .alpha.--Al.sub.2 O.sub.3 abrasive material having a purity of least 98.5% and a density of at least 95% of theoretical density, the .alpha.--Al.sub.2 O.sub.3 crystallites of the material being smaller than 4.mu., preferably smaller than 3.mu..

REFERENCES:
patent: 4086067 (1978-04-01), Busch et al.
patent: 4252544 (1981-02-01), Takahashi

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