A dielectric ceramic not reductive, a capacitor in the use of a monolithic ceramic and method of manufacture of a ceramic dielectric not reductive

摘要

A ceramic dielectric the non-reducing comprises of the ca, zr and ti as the metal elements and does not contain pb. In a pattern of x-ray diffraction cukalpha, the ratio of the peak intensity maximum of crystalline phases of the peak intensity maximum of 2 theta = 25degre to 35degre of a crystalline phase of the perovskite is 12% or less, the secondary crystalline phases, including all the crystalline phases other than the crystalline phase of the perovskite. The dielectric ceramic the non-reducing has characteristics in terms of the isolation resistance and dielectric loss after baking in a neutral or reducing atmosphere, and a high reliability during a test of life in the load a high temperature, and it is useful for the manufacture of monolithic ceramic capacitors of high capacity and compact.