Preparation and Study of 0.7(Mg_0.8Zn_0.2)TiO₃·0.3{Ba₄Nd_28/3Ti₁₈O₅₄·zBi₂O₃} Microwave Dielectric Ceramics

Abstract:

The (Mg_0.8Zn_0.2)TiO₃(MZT) as the foundation is mainly studied to join high dielectric material Ba₄Nd_28/3Ti₁₈O₅₄·zBi₂O₃(BNT) to preparation microwave dielectric ceramic 0.7(Mg_0.8Zn_0.2)TiO₃·0.3{Ba₄Nd_28/3Ti₁₈O₅₄·zBi₂O₃}(z=0.15, 0.18, 0.2) to improve dielectric properties of MZT. While Bi³⁺ could reduce the sintering temperature to make MZT and BNT composite in a lower sintering temperature (1200~1230 °C). According to the results of the dielectric properties, density, XRD and SEM tests of the obtained ceramics, we can find out that the amount of doped Bi³⁺ and the sintering temperature affected the structure and properties of the ceramics. The results show that when z=0.18, 0.7(Mg_0.8Zn_0.2)TiO₃·0.3{Ba₄Nd_28/3Ti₁₈O₅₄·zBi₂O₃}

• Periodical: Advanced Materials Research (Volume 924)
• Pages: 115-122
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.924.115
• Online since: April 2014
• Authors: Xiao Li Ji, Cheng C. Zhai, Song Zhang*
• Keywords: 0.7(Mg_0.8Zn_0.2)TiO₃·0.3{Ba₄Nd_28/3Ti₁₈O₅₄·zBi₂O₃}, BNT Ceramics, Dielectric Property, Microwave Dielectric Ceramics, MZT Ceramics

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