| 摘要 |
PURPOSE:To provide a dielectric porcelain compound which can be sintered by burning at burining temperature of 900 deg.C or less being lower than melting points of Ag, Cu and the like, whose dielectric constant epsilonr is 6.7-11.7, Q is 1000-1400, and temperature coefficient Tepsilon of the dielectric constant epsilonr is 0+ or -60ppm or less. CONSTITUTION:This composition is composed of: a main component expressed by a general formula xBaO-yTiO2-zReO2/3 (wherein(x), (y) and (z) respectively take values for satisfying 0.02<=x<=0.3, 0.4<=y<=0.85, 0.05<=z<=0.5, and x+y+z=1, Re represents one kind or two or more kinds of rare earth element selected among La, Pr, Nd, Sm, Gd, Dy, Er, and Yb); SiO2 and one kin or two or more kinds of oxide selected among CaO, SrO or BaO; MgO, B2O3, and Li2O. The main component 25-60wt.%, SiO2 10-40wt.%, one kind or two or more kinds of oxide selected among CaO, SrO or BaO 1--20wt.%, MgO 1-15wt.%, B2O3 3-30wt.%, and Li2.0.1-3wt.% are contained. |
