Patent ID: 7560406

Claim:
A ceramic material having a sintered composition comprising: ceramic powders composed of (Sr x Ca 1−x )Ti y Zr 1−y O 3 , wherein x is between 0 and 1, and y is between 0 and 0.1; and a sintering aid comprising M a 2 O, M b O, M c 2 O 3 , M d O 2 , wherein element M a is Li, Na, K, or a combination thereof, element M b is Be, Mg, Ca, Sr, Ba, or a combination thereof, element M c is two of B, Al, and Ga, and element M d is Si, Ge, or a combination thereof, wherein the ceramic powders and the sintering aid are about 80-90% and 10-20%, respectively, of the total weight of the sintered composition, and wherein the sintering temperature thereof is between 900 and 1000° C.