PRODUCTION OF TITANIUM PHOSPHATE-POTASSIUM SINGLE CRYSTAL

摘要

PURPOSE:To produce the title KTiPO5 single crystal under the atmospheric pressure without requiring high-pressure conditions by melting KTiPO5 with K2MO4 (M is at least one kind among W, Mo, Cr, and S) to be used as the flux, soaking the melt, and then annealing the melt. CONSTITUTION:The powder of KTiPO5, obtained by mixing equimolar KPO3 and TiO2, and one kind of flux powder of K2WO4, K2MO4, K2CrO4, K2SO4, etc., are mixed so that the content of the KTiPO5 in the mixture is controlled to 15-20mol%. The mixture is heated to about 1,100 deg.C, soaked at that temp. for many hours, and then annealed at the cooling rate of about 8 deg.C/hr. The single crystal of KTiPO5 is obtained at a low cost by the reaction under the atmospheric pressure.