| 摘要 |
PURPOSE:To heighten the degree of sintering so as to simply manufacture of a BZT sintered body of high density with a high yield, without no axially about characteristic deterioration, by baking calcined substance expressed by means of Ba3ZnTa2O9 after adding ZnTa2O6 thereto. CONSTITUTION:The powder of calcined substance expressed by Ba3ZnTa2O9, being main material, and the powder of ZnTa2O6 are mixed together sufficiently in pure water of approximately 1.5 times by weight ratio and are dried in the air thereafter. Then, adequate amount of organic binder is added to the dried mixed powder so as to be molded by a metal mold, and thereafter a molded body is baked. In this case, normally the range from 0.01 to 2 percentage by weight of, desirably the range from 0.01 to 0.8 percentage by weight of ZnTa2O6 is added to normally 100 percentage by weight of calcined substance of Ba3ZnTa2O9. Since the degree of sintering is heightened thereby, it is possible to obtain a BZT sintered body of high density with a high yield, to maintain excellent characteristic, which the BZT possesses by nature, and to manufacture the sintered body simply with the high yield. |
