Dielectric properties of La/Zr codoped Ba0.67Sr0.33TiO3 ceramics prepared from citrate–nitrate combustion derived powders
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La/Zr codoped Ba0.67Sr0.33TiO3 (BST) ceramics were fabricated via citrate–nitrate combustion derived powders, and the microstructure and dielectric properties of BST ceramics were investigated. All ceramic samples show a pure perovskite structure. The dielectric constant and loss decrease with increasing Zr content. The additions effectively suppress the grain growth of BST ceramics. It is found that the temperature-permittivity characteristics for codoped BST ceramics could be controlled using various doping content.
KeywordsSpark Plasma Sinter Ceramic Sample Barium Strontium Titanate Barium Zirconate Applied Direct Current
This work was supported by Fundamental Research Funds for the Central Universities (XDJK2013C055) and (SWU113057).