Process for the production of low-temperature firing ceramic compositions

Abstract

A process for the production of dielectric porcelain composition includes: a first step of admixing Bi2O3 and CuO with a BaO—TiO2—ReO{fraction (3/2)} main material, wherein Re is a lanthanoid element, to give a material mixture; a second step of calcining the material mixture at a temperature of 950° C. or higher; a third step of milling the calcined material mixture to a mean particle diameter of about 2.0 μm or less; a fourth step of admixing a B2O3—SiO2 glass component and CuO with the milled material mixture to give a material for a dielectric porcelain composition; and a fifth step of forming the material into a target shape and firing the shaped material at a temperature of 1000° C. or lower. The obtained dielectric porcelain composition is sinterable at low temperatures and has a high specific dielectric constant and Q-value and a satisfactory thermostability.

Dependencies are inferred from the claim text.