Dielectric properties of CaCu₃₋ₓMgₓTi₄O₁₂ (x=0.20 and 0.50) material synthesized by the semi-wet route for energy storage capacitor

Author/Creator ORCID

Date

2019-05-02

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Citation of Original Publication

Laxman Singh, U. S. Rai, N. B. Singh, Y. Lee, D. K. Mahato, Divyanshu Bhardwaj, and K. D. Mandal "Dielectric properties of CaCu3-xMgxTi4O12 (x=0.20 and 0.50) material synthesized by the semi-wet route for energy storage capacitor", Proc. SPIE 11020, Smart Biomedical and Physiological Sensor Technology XV, 1102002 (2 May 2019); doi: 10.1117/12.2515634;

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Abstract

Dielectric properties of high percentage Mg doped CaCu₃Ti₄O₁₂, CaCu₃-ₓMgₓTi₄O₁₂ (x=0.20 and 0.50) ceramics carried out. They were synthesized by the semi-wet route using a solution based citrate–nitrate method along with inexpensive solid TiO₂ powder. X-ray diffraction analysis reveals that the ceramics form single phase when sintered at 950 °C for 12h. SEM analyses show the smooth surfaces of grains with a spherical appearance. The grains of CCMTO2 and CCMTO5 ceramics were found to be in the size range of 1-5 μm and 1-3 μm, respectively. Dielectric studies show that the CCMTO2 ceramic has higher value of dielectric constant and lower dielectric loss in comparison to that of CCMTO5.