Ceramic precursor composition and method for manufacture of superconductive and nonsuperconductive ceramic powders using the precursor composition

Citation:

Aksay, I. A. ; Han, C. ; Maupin, G. D. ; Martin, C. B. ; Kurosky, R. P. ; Stangle, G. C. Ceramic precursor composition and method for manufacture of superconductive and nonsuperconductive ceramic powders using the precursor composition, 1991. US Patent 5,061,682.

Section:

US

ISBN Number:

WO9110620A1

Abstract:

Ceramic precursor mixt. comprising a metal cation capable of being converted to a metal oxide by thermal energy, a carbohydrate, and an anion capable of participating in an anionic oxidn.-redn. reaction with the carbohydrate is converted to ceramic powder by forming droplets of the precursor mixt., removing all the solvent from the droplets, thermally initiating an anionic oxidn.-redn. reaction between the anion and carbohydrate to form a multiphase ceramic material consisting of carbonates, hydroxides, and oxides of metal cation, and heating the particles to convert the multiphase ceramic into a single-phase ceramic. This process is used for the manuf. of superconductive and nonsuperconductive ceramic powders.