| 摘要 |
PURPOSE:To provide a process effective in shortening the baking time in the baking of a piezoelectric ceramic, simplifying the baking temperature curve and giving a sintered piezoelectric ceramic having homogeneous structure and uniform piezoelectric characteristics. CONSTITUTION:Formed thin plates 1 of piezoelectric ceramic and setters 2 made of magnesia and having a porosity of 15-70% are alternately stacked one upon another in multiple stages and baked to obtain sintered piezoelectric ceramic products. The baking time can be shortened and the baking temperature curve can be simplified since the decomposition gas of the binder in the formed ceramic 1 can easily be dissipated. The sintered product has uniform quality and small scattering of properties between the products owing to the uniform progress of the removal of the binder. |
