Sintered aluminous abrasive grains and method of producing the s

Details Sintered aluminous abrasive grains and method of producing the s Sintered aluminous abrasive grains and method of producing the s

1991-02-11

1993-03-02

Bell, Mark L.

Abrasive tool making process, material, or composition

Miscellaneous

51298, 51309, 423600, 501127, C09C 168

Patent

active

051905671

ABSTRACT:
Sintered aluminous abrasive grains having a density of at least 95% of theoretical density and having an alpha alumina crystal size of smaller than one micron. Which are obtained by drying and crushing a lithium containing alumina dispersion and sintering the crushed objects at 1100.degree.-1500.degree. C., said abrasive grains have the strength and hardness equal to or higher than conventional abrasive grains, superior properties in grinding resistance and wear resistance and superior self-sharpening property in course of grinding.

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patent: 4657754 (1987-04-01), Bauer et al.
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patent: 4741743 (1988-05-01), Narayanan et al.
patent: 4744802 (1988-05-01), Schwabel
patent: 4786292 (1988-11-01), Janz et al.
patent: 4799938 (1989-01-01), Janz et al.
patent: 4946664 (1990-08-01), Van Zyl et al.
patent: 4954462 (1990-09-01), Wood et al.

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