| 摘要 |
PURPOSE:To obtain the title sintered compact without causing variation in its composition by calcining a form containing a metallic oxide liable to migrate in calcining operation on a plate consisting of a ceramic sintered compact containing the same kind of metallic oxide liable to migrate in the calcining process. CONSTITUTION:A plate 4 consisting of a ceramic sintered compact containing a metallic oxide (e.g. Sb2O3) liable to migrate in calcining operation is set up on a stock 2, and plural metallic oxide form 1 (e.g. varistor form) each containing the same kind of metallic oxide as that mentioned above are set up upright adjacently to each other on the plate 4. The system as a whole is then put into a hot oven where the forms 1 are calcined, thus obtaining the objective ceramic sintered compact for electronic parts. Thereby, because of putting the plate 4 in between, the transfer (due to outflow, diffusion, etc.) of the metallic oxide liable to migrate in calcining from the forms 1 to the stock 2 side can be prevented. |
