Method for making ultra-fine ceramic particles

Details Method for making ultra-fine ceramic particles Method for making ultra-fine ceramic particles

1985-02-14

1986-09-09

Williams, Howard S.

Chemistry of inorganic compounds

Silicon or compound thereof

Oxygen containing

204164, 423409, 423411, 423412, 423440, 423592, 423605, 423610, 423622, 423625, 423636, C01B 1320, C01B 2106, C01B 3130, C01G 102

Patent

active

046108572

ABSTRACT:
A method for making ultra-fine ceramic particles, in which metal powder constituting a portion of the ultra-fine ceramic particles intended for production is injected at a rate of not less than 70 grams per minute into a plasma jet so that the metal powder is vaporized. The vaporized metal powder is then mixed with a reactive gas, which includes an element consituting the other portion of the ultra-fine ceramic particles, filled in the surrounding area of the plasma jet, and thereby the vaporized metal powder and the reactive gas produce a synthetic reaction. The ultra-fine ceramic particles are produced continuously because of the reaction flame.

REFERENCES:
patent: 3434950 (1969-03-01), Weinberg et al.
patent: 3848068 (1974-11-01), Rice
patent: 4164553 (1979-08-01), Perugini et al.
patent: 4202190 (1980-06-01), Harvey et al.
Yoshida et al, Journal of Materials Science, 14, No. 7 (Jul. 1979), pp. 1624-1630.
Vissokov et al, Journal of Materials Science, 16, No. 6 (Jun. 1981), pp. 1716-1719.

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