Effects of ZnO-Bi₂O₃-B₂O₃-SiO₂ Glass Additive on Dielectric Properties of CaO-Li₂O-Sm₂O₃-TiO₂ Microwave Dielectric Ceramics

Abstract:

The effects of ZnO-Bi2O3-B2O3-SiO2(ZBBS) glass addition on the sintering behavior, crystalline phase, microstructure and dielectric properties of 16CaO-9Li2O-12Sm2O3-63TiO2(CLST) ceramics were investigated. The results show that ZBBS glass can effectively decrease the sintering temperature of CLST ceramics to 1 000 °C by liquid phase sintering. With the increase of ZBBS content, the second phase，Sm2Ti2O7 is found and increase, which causes the dielectric constant and dielectric loss of CLST decrease. The temperature coefficient of the resonance frequency shifts to positive. The optimum dielectric properties of r = 71, Tan = 0.006, TCF= 5×10-6/°C were obtained in 10wt% LBS glass-doped CLST ceramics sintered at 1 000 °C for 3 h.

• Periodical: Advanced Materials Research (Volumes 148-149)
• Pages: 1580-1583
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.148-149.1580
• Online since: October 2010
• Authors: Liu Shuan Yang, Xiao Wang, Jin Liang Huang, Fei Long Li
• Keywords: CaO-Li₂O-Sm₂O₃-TiO₂, Dielectric Property, Microwave Dielectric Ceramics, Sintering Additive

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