| 摘要 |
PURPOSE:To provide a dielectric porcelain composition capable of being sintered at low temperatures and having high dielectric constant, insulation resistance, mechanical strength, etc., and reduced dielectric loss by adding a prescribed amount of a Mn-containing complex oxide to a four-component solid solution porcelain composition having a specific composition ratio. CONSTITUTION:A four component solid solution porcelain composition comprising magnesium, leas tungstate, magnesium.lead niobate, lead titanate and lead zirconate and represented by the formula (X+Y+Z+U=1; 0.05<=X<=0.3; 0.3<=Y<=0.85; 0.05<=Z<=0.3; 0.05<=U<=0.3) is mixed with a manganese-containing complex oxide (e.g. manganese.lead niobate) in an amount of 0-4mol% based on the composition to prepare a dielectric porcelain composition. The dielectric porcelain composition is employed suitably for the preparation of laminate ceramic capacitors. |
