Process for producing ultra-fine ceramic particles

Details Process for producing ultra-fine ceramic particles Process for producing ultra-fine ceramic particles

1985-02-08

1987-11-10

Andrews, Melvyn J.

Compositions: ceramic

Ceramic compositions

Carbide or oxycarbide containing

423335, 423608, 423610, 423625, 423633, 423636, 501 96, 501108, 501127, 501133, 501134, 501153, 501154, C04B 3502, C01B 1314

Patent

active

047057629

ABSTRACT:
A process for producing ultra-fine ceramic particles with the particle size of less than 1000 .ANG., which comprises the steps of forming powdered dust cloud of metal powder such as Si constituting a portion of aimed ceramic particles in a reaction gas containing the other portion of said aimed ceramic particles, igniting said powdered dust cloud to cause explosive burning and synthesizing said aimed ceramic particles and gathering said resulting ceramic particles. By the process, ceramic particles such as Al.sub.2 O.sub.3, MgO, SiO.sub.2, TiO.sub.2, TiN having particle size of 10-100 nm can be produced.

REFERENCES:
patent: 2714563 (1955-08-01), Poorman et al.
patent: 2965474 (1960-12-01), Sargent et al.
patent: 3183077 (1965-05-01), Kraus
patent: 3726643 (1973-04-01), Merzhanov et al.
patent: 3848068 (1974-11-01), Rice
patent: 4164553 (1979-08-01), Perugini et al.
patent: 4221762 (1980-09-01), Andrjushin et al.
patent: 4468474 (1984-08-01), Gupta
patent: 4610857 (1986-09-01), Ogawa et al.

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