BEI NIEDRIGER TEMPERATUR GESINTERTER KERAMISCHER KONDENSATOR MIT HOHEM WIDERSTAND UND BIEGEFESTIGKEIT, UND VERFAHREN ZU SEINER HERSTELLUNG.

摘要

A monolithic capacitor having a dielectric ceramic body cosintered with at least two base metal electrodes buried therein. The ceramic body is composed of a major ingredient expressed by the formula, (Ba1-v-wMevMgwO)k(Zr1-x-yTixSiy)O2 where Me is either or both of strontium and calcium, and v, w, x, y and k are numerals in specified ranges. To this major ingredient is added a minor proportion of a mixture of boric oxide, silicon dioxide, and one or more metal oxides selected from among barium oxide, magnesium oxide, zinc oxide, strontium oxide and calcium oxide. For the fabrication of capacitors the mixture of the above major ingredient and additives in finely divided form are formed into moldings of desired shape and size, each with at least two electrodes buried therein. The moldings and electrodes are cosintered in a reductive or neutral atmosphere at temperatures of less than 1200 DEG C. and then are reheated at a lower temperature in an oxidative atmosphere.