Crystal Structure and Microwave Dielectric Properties of Ca[(Li_1/3Nb_2/3) _0.92Zr_0.08]O_3-δ−xTiO₂ Ceramics

Abstract:

Crystal structure and microwave dielectric properties of Ca[(Li1/3Nb2/3) 0.92Zr0.08]O3−δ−xTiO2(0≤x≤0.2) ceramics were investigated. A single phase with orthorhombic perovskite structure was obtained at x=0.0~0.1. With an increasing of Ti4+ content, the Qf value decreased due to a decrease of the degree of B-site 1:2 ordering. However, the τf value firstly increased from-14.2ppm /°C to -6.6ppm/°C, and then moved to the negative direction. When x=0.05, the optimum microwave dielectric properties: εr=32.8, Qf =19460GHz and τf =−8.3 ppm/°C.

• Periodical: Materials Science Forum (Volumes 663-665)
• Pages: 515-518
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.663-665.515
• Online since: November 2010
• Authors: Gang Xiong
• Keywords: Low Temperature Sintering, Microwave Dielectric Ceramics, Microwave Dielectric Properties, ZBN Glass

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