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Dielectric properties of La-substituted Pb0.5Ca0.5[(Mg1/3Nb2/3)0.5Ti0.5]O3 ceramics

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Abstract

Modification of Pb0.5Ca0.5[(Mg1/3Nb2/3)0.5Ti0.5]O3 dielectric ceramics was performed by up to 20 mol% La substitution for Pb and Ca. The temperature coefficient of dielectric constant was significantly reduced by the present approach, while an increased Qf factor was achieved. Good microwave dielectric properties were obtained in a composition Pb0.425Ca0.425La0.1[(Mg1/3Nb2/3)0.5Ti0.5]O3: ε = 125; Qf = 3150 GHz; calculated temperature coefficient of resonant frequency δf = +253 ppm/°C.

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  1. Institute of Materials Physics & Microstructures, Department of Materials Science & Engineering, Zhejiang University, 310027, Hangzhou, People’s Republic of China

    X. J. Lu & X. M. Chen

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  1. X. J. Lu
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  2. X. M. Chen
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Lu, X.J., Chen, X.M. Dielectric properties of La-substituted Pb0.5Ca0.5[(Mg1/3Nb2/3)0.5Ti0.5]O3 ceramics. Journal of Materials Research 16, 2053–2056 (2001). https://doi.org/10.1557/JMR.2001.0281

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  • DOI: https://doi.org/10.1557/JMR.2001.0281

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