| abstract |
The invention discloses one kind is little to be lost super-pressure ceramic capacitor dielectric material, the composition of the dielectric material is by weight percentageļ¼BaTiO 3 70 90%, SrTiO 3 2 20%, CaTiO 3 1.5 10%, SrBi 2 Nb 2 O 9 0.2 5%, Bi 3 ZrNbO 9 2 8%, Nb 2 O 5 0.05 0.8%, CeO 2 0.1 0.6%, ZnO 1 5%, and MnCO 3 0.1 0.5%.In the present invention, by the SrBi that adulterates in ceramic capacitor dielectric material simultaneously 2 Nb 2 O 9 And Bi 3 ZrNbO 9 And achieve the good performance balance between dielectric constant, dielectric loss, direct current proof voltage and specific insulation.In addition, a kind of present invention also offers purposes of the method and the dielectric material for preparing ceramic capacitor dielectric material. |