High dielectric constant type ceramic composition consisting essentially of Pb(Fe1/2Nb1/2)O3-Pb(Mg1/3Nb2/3)O3-Pb(Mg1/2W1/2)O3

摘要

A novel ceramic composition exhibiting a solid solution structure of Pb(Fe1/2Nb1/2)O3-Pb(Mg1/3Nb2/3)O3-Pb(Mg1/2W1/2)O3, can be sintered at a low sintering temperature; have a high insulation resistance; have a relatively high dielectric constant in the high dielectric type ceramic dielectrics, and; have a low dielectric loss. A particular amount of the additives, i.e., Pb-(Mn2/3W1/3)O3, Pb(Mb1/2W1/2)O3+L, Pb(Mn1/2Nb2/3)O3, MnO, Pb(Mn1/3Ta2/3)O3, Li2O, Cr2O3 and CeO2, is added into the composition mentioned above.