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