Patent ID: 9073789
Filing Date: 2015-07-07
Classification: C04B,Y10T

Abstract:
1. A manufacturing method of a sintered ceramic body, comprising: a material mixing step of mixing barium silicate with aluminum oxide, a predetermined glass material, and a predetermined additive oxide under adoption of conditions (1) and (2) to prepare a material mixture; and a firing step of molding the material mixture to a molded object and firing the molded object at a temperature in a range of not lower than 850° C. and not higher than 1000° C., wherein the condition (1) is that the barium silicate is monoclinic and has an average particle diameter in a range of not less than 0.3 μm and less than 1 μm and a specific surface area in a range of not less than 5 m the condition (2) is that the aluminum oxide has an average particle diameter in a range of not less than 0.4 μm and not greater than 10 μm, a specific surface area in a range of not less than 0.8 m