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SrLnAlO4 (Ln=Nd and Sm) Microwave Dielectric Ceramics

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Abstract

SrLnAlO4 (Ln=Nd and Sm) ceramics with K2NiF4 structure were prepared by a solid state reaction approach, and their microwave dielectric characteristics were evaluated together with the microstructures. The single phase dense SrNdAlO4 and SrSmAlO4 ceramics were obtained by sintering at 1450–1475°C and 1475–1500°C, respectively, and the good microwave dielectric characteristics were achieved: (1) ε = 17.8, Q · f = 25,700 GHz, τ f = −9 ppm/°C for SrNdAlO4; and (2) ε = 18.8, Q · f = 54,880 GHz, τ f = 2 ppm/°C for SrSmAlO4 dense ceramics. The Qf value significantly increased with increasing sintering temperature.

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Authors and Affiliations

  1. Department of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China

    Xiang Ming Chen, Yang Xiao, Xiao Qiang Liu & Xing Hu

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  1. Xiang Ming Chen
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  2. Yang Xiao
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  3. Xiao Qiang Liu
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  4. Xing Hu
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Correspondence to Xiang Ming Chen.

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Chen, X.M., Xiao, Y., Liu, X.Q. et al. SrLnAlO4 (Ln=Nd and Sm) Microwave Dielectric Ceramics. Journal of Electroceramics 10, 111–115 (2003). https://doi.org/10.1023/A:1025695722686

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  • DOI: https://doi.org/10.1023/A:1025695722686

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