Preparation of PZT-PZN ceramics with high pyroelectric coefficient over a wide temperature range

PZT-PZN ceramics with high pryoelctric coefficient over a wide temperature range was obtained. Sintered body of a mixture of three compositions having pyroelectric peaks at different temperatures exhibited single pyroelectric peak This was caused from the diffusion during the sintering. To avoid the effect of the diffusion, granules with three compositions were mixed, pressed into a powder compact and sintered. The sintered body such prepared exhibited three pyroelectric peaks that correspond to the individual compositions. This technique enabled the combination of different pyroelectric properties.