METHOD OF PRODUCTION OF BARIUM TITANATE Russian patent published in 1995 - IPC

FIELD: radio electronics. SUBSTANCE: tetrabutoxytitanium or its solution in butyl alcohol is mixed with water taken in molar ratio to titanium alkoxide not exceeding 10. The obtained suspension of amorphous titanium dioxide is heated to a temperature of 60 to 80 C and kept at this temperature for 0.5 to 1 h, then aqueous solution of barium hydroxide at a concentration of 7 to 10 mass percent, whose amount provides ratio Ba Ti in the mixture within 1.05 to 1.15 is introduced. The mixture is heated to a temperature of 80 to 90 C and kept at this temperature for 1 to 2 h at constant agitation. The obtained sediment is separated and dried. To obtain solid solutions based on barium titanate, one or several alkoxides of metals from the yttrium, zirconium, tantalum, niobium bismuth group (0.0001 to 0.2 mole fractions) are additionally introduced to titanium alkoxide or its solution in butyl alcohol. EFFECT: facilitated procedure. 2 cl, 1 tbl