Journal of Inorganic Materials

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Preparation and Characterization of PMN-PT Relax Ferroelectric Powders by Sol-Gel Method

WANG Xin1; ZHUANG Zhi-Qiang1; QI Xue-Jun2   

  1. 1. College of Materials Sci. & Eng.; South China University of Technology; Guangzhou 510640; China; 2. Shanghai Institute of Ceramics; Academy of Sciences of China; Shanghai 200050; China
  • Received:2001-03-02 Revised:2001-03-19 Published:2002-03-20 Online:2002-03-20

Abstract: PMN-PT relax ferroelectric fine powders were prepared by a sol-gel routes with inorganic compounds, Nb2O5, TiCl4 and Pb(Ac)2·3H2O as raw materials, citric acid and EDTA as co-chelate and ethylene glycol as solvent. The effects of processing technology and complex/ chelate on the properties of organic compounds precursors, the powders synthesis, the phases formation and dielectric properties were discussed.

Key words: sol-gel method, PMN-PT relax ferroelectric, CA-EDTA co-chelate, inorganic salts

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