BARIUM TITANATE SINGLE CRYSTAL AND PREPARATION METHOD THEREOF

摘要

The present invention provides a method of producing the barium titanate solid solution single crystals. The crystalline phase of the single crystal is hexagonal. The method of the present invention, a small quantity of metal oxide is added and dissolved into the barium titanate to form a solid solution. The metal oxides are used as single crystal growth aid; and the barium titanate single crystal can be prepared by using a pressureless sintering process composing of one or two stages of heat treatments that require no special expensive equipments, and thus the method can be used for the mass production of the single crystals.