Accession Number : AD0163802

Title :   Cryo-Coprecipitation Method for Production of Ultrafine Mixed Metallic-Oxide Particles.

Descriptive Note : Patent,

Corporate Author : OFFICE OF THE SECRETARY OF THE ARMY WASHINGTON D C

Personal Author(s) : Gazza,George E. ; Messier,Donald R.

Report Date : 01 AUG 1972

Pagination or Media Count : 3

Abstract : The patent describes a cryo-coprecipitation method for the production of stoichiometric ultrafine mixed metallic-oxide powders comprising the steps of: preparing an aqueous solution of mixed salts containing each cation in the desired stoichiometric proportion, freezing to form spheroids, contacting the spheroids with an aqueous hydroxide solution to precipitate mixed-cation hydroxides, drying and calcining the precipitate.

Descriptors :   (*ALUMINATES, SYNTHESIS(CHEMISTRY)), (*MAGNESIUM COMPOUNDS, SYNTHESIS(CHEMISTRY)), (*YTTRIUM COMPOUNDS, SYNTHESIS(CHEMISTRY)), (*PATENTS, ALUMINATES), (*SPINEL, SYNTHESIS(CHEMISTRY)), CHEMICAL PRECIPITATION, SALTS, PARTICLE SIZE, CRYOGENICS

Subject Categories : Ceramics, Refractories and Glass

Distribution Statement : APPROVED FOR PUBLIC RELEASE