Diffusion in Multi-Compositional PZ-PT-PZN Ceramics Prepared by Spark Plasma Sintering

Abstract

Diffusion in multi-compositional 0.9PbZrO₃−xPbTiO₃-(0.1–x)Pb(Zn_1/3Nb_2/3)O₃ (PZ-PT-PZN) ceramics prepared by spark plasma sintering was investigated through measuring the pyroelectric properties. The strong dependence of pyroelectric properties on composition x provides a useful method to investigate the diffusion between the different compositions. In addition to the post heat-treatment, the calcination conditions and the existence of Ti^{4 +} were found to play very important roles on the diffusion. The diffusion decreases with increasing calcination temperature, while the presence of Ti^{4 +} significantly increases the diffusion between the different compositions.

Keywords:

• Spark plasma sintering
• pyroelectric
• PZ-PT-PZN
• diffusion

Acknowledgments

The present work was supported by National Science Foundation of China under Grant No. 50602038, 50872121, 50832005, National Basic Research Program of China under Grant No. 2009CB623302, and Qianjiang Project of Zhejiang Province of China.