| 摘要 |
Process for the preparation of a PZTN piezoelectric ceramic material by means of the addition to the calcined oxide chamotte of 5 % by weight of the coprecipitate of hydroxides of the same composition as the chamotte and having the same stoichiometric relationship among the constituent metals as that existing in the said chamotte. The constituent oxides of the chamotte are PbO, ZrO2, TiO2 and Nb2O5. The PZTN material corresponds to the basic formula: Pb(Ti0.47Zr0.53)O3 + 0.015 Nb The material sintered at a temperature of 1000 DEG C-1125 DEG C and polarised has good dielectric and piezoelectric properties, a high Curie temperature and can be used for the manufacture of igniters, resonators and sonic and ultrasonic transducers. <IMAGE> |
