Pyroelectric ceramics

摘要

A pyroelectric ceramic having the composition: (PB(1+ delta - alpha )Sr alpha ) (Zr(1-2x-y)FexNbxTiy)1-z phi z03 where phi is U (uranium) or Mn (manganese) and in which alpha is a number substantially within the range 0.01 to 0.10; x is a number substantially within the range 0.10 to 0.25; y is a number substantially within the range 0 to 0.4; z is a number substantially within the range 0 to 0.05 and delta is a number substantially within the range 0 to 0.06. Methods of fabricating the pyroelectric ceramic are also described.