Method of producing a grinding medium

Details Method of producing a grinding medium Method of producing a grinding medium

1985-07-23

1987-02-17

Dixon, Jr., William R.

Compositions: ceramic

Ceramic compositions

Carbide or oxycarbide containing

501127, 51307, 51309, C04B 3556, C09C 168

Patent

active

046439838

ABSTRACT:
A method of producing a grinding medium on the basis of alpha-alumina and at least one alumina carbide selected from the group consisting of Al.sub.2 OC and Al.sub.4 O.sub.4 C comprises the steps of melting a mixture of alumina or a material rich in alumina with a carbon-containing reducing agent to obtain a melt, rapidly cooling the melt to obtain a solidified body, breaking the solidified body into abrasive grains, and subjecting the abrasive grains to a heat treatment at a temperature of 500.degree. C. and 1500.degree. C. for a period of three minutes to 24 hours.

REFERENCES:
patent: 2886454 (1959-05-01), Todd
patent: 3792553 (1974-02-01), Schleifer et al.
patent: 3916583 (1975-11-01), Rowse et al.
patent: 4059417 (1977-11-01), Ilmaier et al.
patent: 4252544 (1981-02-01), Takahashi
patent: 4341533 (1982-07-01), Daire et al.

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