Patent ID: 8076257

Claim:
A high temperature ceramic dielectric composition suitable for use within a capacitor, the composition comprising: a. about 98.35 mole % of a calcined base mixture of Me x (Bi 0.5 Na 0.5 ) 1-x TiO 3 , wherein Me is selected from the group consisting of Ba 2+ and Sr 2+ , and wherein X is from between about 0.06 and about 0.12; b. about 0.88 mole % of at least one oxide of small donor cations, the at least one oxide of small donor cations including an oxide of at least one of Nb 5+ , Ta 5+ , and W 6+ small donor cations; c. about 0.38 mole % of at least one oxide of acceptor cations; d. about 0.13 mole % of oxides of large donor cations selected from the group consisting of Nd 2 O 3 , other rare earth oxides, and combinations thereof; and, e. about 0.26% mole % of a glass forming compound selected from the group consisting of SiO 2 , B 2 0 3 , Ge0 2 , V 2 0 5 , and combinations thereof.