| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a dense dielectric porcelain composition which has excellent dielectric characteristics in a high frequency band and can be cofired with silver electrodes, etc., at a relatively low temperature. <P>SOLUTION: The mixture formed by adding x pts. wt. (20≤x≤30.0) glass containing GeO<SB>2</SB>to 100 pts. wt. material essentially consisting of a composition expressed by a general formula αBaO-(1-α)TiO<SB>2</SB>(α is a molar ratio of 0.12-0.24) is fired. The glass is expressed by a composition formula of aGeO<SB>2</SB>-bBaO-cBi<SB>2</SB>O<SB>3</SB>, where a, b, and c satisfy, by molar ratios, 0.4≤a≤0.6, 0.1≤b≤0.5, and 0.1≤c≤0.5, and are within a range of a+b+c=1 and the temperature for firing is below the melting point (961.93°C) of Ag. <P>COPYRIGHT: (C)2004,JPO |
