| 摘要 |
PURPOSE: A glass frit, a reduction-resistant dielectric composition applying the glass frit and a reduction-resistant dielectrics are provided, to improve the temperature characteristics and reliance at a high temperature and insulation resistance. CONSTITUTION: The glass frit comprises BaO, CaO, SiO2, BPO4 and SnO2, and is prepared by adding NaF, Na2O and K2O. Preferably the glass frit comprises 20-30 mol% of BaO, 14-24 mol% of CaO, 40-53 mol% of SiO2, 1.4-10 mol% of BPO4 and 0.1-3 mol% SnO2, and is prepared by adding 0-1.5 mol% of NaF, 0-0.8 mol% of Na2O and 0-1 mol% of K2O. The reduction-resistant dielectric composition comprises 94.8-98.9 mol% of BaTiO3, 0-0.25 mol% of BaCO3, 0-0.56 mol% of SrCO3, 0-1.53 mol% of CaCO3, 1.1-4.0 mol% of MgO, 1.0-3.0 wt% of Y2O3, 0.15-1 wt% of MnO2, 0-0.75 wt% of MoO3 and 1-3 wt% of the glass frit. Also the reduction-resistant dielectric composition comprises 94.8-98.9 mol% of BaTiO3, 0-0.25 mol% of BaCO3, 0-0.56 mol% of SrCO3, 0-1.53 mol% of CaCO3, 1.1-4.0 mol% of MgO, 1.0-3.0 wt% of Y2O3, 0.15-1 wt% of MnO2, 0-0.75 wt% of MoO3, 0.3-2.0 wt% of Er2O3, 0.3-2.0 wt% of Dy2O3, 0.3-2.0 wt% of Ho2O3 and 1-3 wt% of the glass frit.
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