SINTERING AID FOR PIEZOELECTRIC CERAMICS, BNT-BT-BASED PIEZOELECTRIC CERAMICS, LAMINATED PIEZOELECTRIC DEVICE, AND MANUFACTURING METHOD OF BNT-BT-BASED PIEZOELECTRIC CERAMICS

摘要

PROBLEM TO BE SOLVED: To provide a sintering aid for piezoelectric ceramics which can densify BNT-BT-based piezoelectric ceramics at 1,100°C, BNT-BT-based piezoelectric ceramics densified by using the sintering aid, a laminated piezoelectric device provided with the densified BNT-BT-based piezoelectric ceramics layer, and a manufacturing method of BNT-BT-based piezoelectric ceramics using the sintering aid.;SOLUTION: The sintering aid for piezoelectric ceramics is a sintering aid which is used for manufacturing of BNT-BT-based piezoelectric ceramics that includes as a main component a perovskite type compound represented by x(Bi_0.5Na_0.5TiO₃)-(1-x)BaTiO (wherein 0x1), which comprises at least a bismuth oxide and a zinc oxide and the remaining portion consists of a boron oxide. By adding a sintering aid having such components, BNT-BT-based piezoelectric ceramics can be densified at 1,100°C or lower.;COPYRIGHT: (C)2007,JPO&INPIT