Patent ID: 8238077
Filing Date: 2012-08-07
Classification: B32B,B82Y,C04B,H01B,H01G,Y10T

Abstract:
1. A dielectric ceramic, comprising: a plurality of crystal grains comprising a core-shell structure and comprising barium titanate as a main component; at least one grain boundary phase between or among the crystal grains; vanadium equivalent to 0.1 mol to 0.2 mol of V magnesium equivalent to 0.55 mol to 0.75 mol of MgO per 100 mol of barium of the barium titanate; at least one rare-earth element (RE) equivalent to 0.55 mol to 0.75 mol of RE manganese equivalent to 0.25 mol to 0.6 mol of MnO, per 100 mol of barium of the barium titanate, wherein the dielectric ceramic has a Curie temperature in a range of 80° C. to 90° C. and a relative dielectric constant at 25° C. in the range from 3800 to 4200.