POWDER OF COMPLEX METAL OXIDE, POWDER OF YTTRIUM-ALUMINIUM GARNET AND METHOD OF PRODUCTION OF COMPLEX METAL OXIDE

摘要

FIELD: powders of complex metal oxides and methods of their production. SUBSTANCE: the offered powder of complex metal oxide having, at least, two metallic elements and contains polyhedral particles, each having, at least, six planes. In this case, average size of particles equals from 0.1 to 500 mm, and ratio D₉₀/D₁₀ equals 10 or less, D₁₀ and D₉₀ present sizes of particles with 10 and 90% accumulation, proceeding from the smallest size of particles on the summery curve of granulometric composition of particles. Offered is also powder of yttrium-aluminium garnet containing polyhedral particles, each has, at least, six planes and average size of particles ranging from 20 to 500 mm. These complex oxides of metals have less sintered particles and have narrow range of size and uniform shape of particles. EFFECT: higher efficiency. 46 cl