| 摘要 |
PURPOSE:To make it possible to be sintered compactly by baking at a temperature of not more than 900 deg.C and besides to be provided with the desired electrical characteristics. CONSTITUTION:This dielectric porcelain composition comprises a sintered body containing as a main component a composition expressed by a composition formula: a (xBa-yCa-zSr) O-bSiO2-cHfO2-(d/2) Al2O3-eTiO2-(f/i) LnIOJ. Wherein: Ln is one or two or more kinds of elements selected from La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu. 5mol%<=a<=60mol%, x+y+z=1, 10mol%<=b<=70mol%, 0mol%<c<=30mol%, 0mol%<d<=30mol%, 0mol%<e<=30 mol%, 0mol%<f<=20mol%, a+b+c+d+e=100mol%, a+b+c+d+e+f>100mol%. |
