Microwave Dielectric Properties of B₂O₃ Doped Ca [(Li_1/3Nb_2/3)_0.95Zr_0.05]O_3−δ Ceramics

Abstract:

The effects of B₂O₃ on the sinterability and microwave dielectric properties of Ca [(Li_1/3Nb_2/3)_0.95Zr_0.05]O_3−δ ceramics were investigated. B₂O₃ doping can effectively reduce sintering temperatue by 150~200oC. The temperature coefficient of resonator frequency τ_f increased with an increase of B₂O₃ content and sintering temperatue. When B₂O₃ of 2wt% were added, the optimum microwave dielectric properties: ε_r =28.7,Qf =13580GHz and τ_f = − 7.8×10⁻⁶/oC were obtained at the sintering temperature of 950oC.

• Periodical: Applied Mechanics and Materials (Volumes 556-562)
• Pages: 314-317
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.556-562.314
• Online since: May 2014
• Authors: Gang Xiong*
• Keywords: B₂O₃, Low-Temperature Sintering, Microwave Dielectric Ceramics, Microwave Dielectric Properties

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