Microwave Dielectric Properties of Ca[(Li_1/3Nb_2/3)_0.95Zr_0.15]O_3+δ Ceramics with Ba²⁺ Substitution at A-Site

Abstract:

The microwave properties of (Ca1-xBax)[(Li1/3Nb2/3)0.95Zr0.15]O3+δ(0.0≤x≤0.2, CBLNZ) ceramics were investigated. A single phase with orthorhombic perovskite structure was obtained at x = 0.0 − 0.025. Both the εr and Qf value firstly increased with increasing Ba2+ content, and then began to decrease at x = 0.025. The τf value increased from −9.4 ppm/°C at x=0.0 to 18ppm/°C at x=0.2, which could be explained by the decrease of B-site bond valence in perovskite structure.

• Periodical: Key Engineering Materials (Volumes 336-338)
• Pages: 196-198
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.336-338.196
• Online since: April 2007
• Authors: Dong Xiang Zhou, G. Xiong, Shu Ping Gong, Jun Zhao, M.Z. Hu, H. Li
• Keywords: Microwave Dielectric Ceramics, Permittivity, Quality Factor, Temperature Coefficient of the Resonant Frequency

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