Synthesis of (1-x) Ca0.4Sm0.4TiO3 – xLi0.5Nd0.5TiO3 Ceramic Powders via Citric Acid Precursor

Dong Xiang Zhou; Guo Hua Huang; Zhi Ping Zheng; Jian Mei Xu; Shu Ping Gong

doi:10.4028/www.scientific.net/KEM.280-283.683

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 280-283Synthesis of (1-x) Ca0.4Sm0.4TiO3 –...

Synthesis of (1-x) Ca_0.4Sm_0.4TiO₃ – xLi_0.5Nd_0.5TiO₃ Ceramic Powders via Citric Acid Precursor

Abstract:

Using citric acid (CA) as a chelating agent, (1-x)Ca0.4Sm0.4TiO3 –xLi0.5Nd0.5TiO3 (CSLNT) (x = 0.3) ceramic powders were synthesized by the Pechini method. The CSLNT precursor and derived oxide powders were characterized by differential thermal analysis, thermogravimetric analysis, X-ray diffraction and scanning electron microscopy. Only perovskite CSLNT (x=0.3) phase appeared when the CSLNT precursor was calcined at 1050°C for 3 h. Compared with the conventional solid-state reaction method, microwave dielectric ceramics with better properties could be prepared by the Pechini method at lower sintering temperature.