| abstract |
Can be fired at low temperatures below 900 ° C together with low melting point metals, wide range of firing temperature selection, reduced porosity, finer structure, reduced manufacturing process and reduced process time A method for producing a dielectric ceramic with a low relative dielectric constant and a dielectric ceramic capable of reducing costs. The dielectric ceramic manufacturing method of the present invention includes a cordierite material (2MgO · 2Al 2 O 3 · 5SiO 2 ), Al, Si, and Sr, and low-temperature sintering in which a part of Si is vitrified. A method for producing a dielectric ceramic comprising forming a mixed powder containing a chemical and firing the compact, wherein the low-temperature sintered material is wet-pulverized together with at least the cordierite material, and a median diameter D50 is obtained. Including the step of preparing a mixed powder of less than 1 μm, the low-temperature-sintered material is not subjected to a step of wet-grinding and drying only the low-temperature-sintered material. |