Microstructures and microwave dielectric properties of (Ba1−xSrx)4(Sm0.4Nd0.6)28/3Ti18O54 solid solutions

Xianpei HUANG; Xinyu LIU; Fei LIU; Changlai YUAN; Jingjing QU; Jiwen XU; Changrong ZHOU; Guohua CHEN

doi:10.1007/s40145-016-0217-x

Journal of Advanced Ceramics 2017, 6(1): 50-58 https://doi.org/10.1007/s40145-016-0217-x

Research Article |

Open Access | Issue | Published: 02 March 2017

Microstructures and microwave dielectric properties of (Ba_1−xSr_x)₄(Sm_0.4Nd_0.6)_28/3Ti₁₈O₅₄ solid solutions

Show Author's Information Hide Author's Information Xianpei HUANG^{^a}, Xinyu LIU^{^a}, Fei LIU^{^b}(

), Changlai YUAN^{^a^,^c}, Jingjing QU^{^d}, Jiwen XU^{^a}, Changrong ZHOU^{^a}, Guohua CHEN^{^a}

^a School of Material Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, China

^b School of Mechanical and Electrical Engineering, Guilin University of Electronic Technology, Guilin 541004, China

^c Guangxi Key Laboratory of Information Materials, Guilin University of Electronic Technology, Guilin 541004, China

^d Department of Information Engineering, Guilin University of Aerospace Technology, Guilin 541004, China

Keywords:

tungsten bronze type, high permittivity, microwave dielectric properties

Cite this article:

HUANG X, LIU X, LIU F, et al. Microstructures and microwave dielectric properties of (Ba_1−xSr_x)₄(Sm_0.4Nd_0.6)_28/3Ti₁₈O₅₄ solid solutions. Journal of Advanced Ceramics, 2017, 6(1): 50-58. https://doi.org/10.1007/s40145-016-0217-x

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Abstract

(Ba_1−xSr_x)₄(Sm_0.4Nd_0.6)_28/3Ti₁₈O₅₄ (x = 0.02, 0.04, 0.06, 0.08, 0.1) solid solutions were prepared by the conventional solid-state reaction process. It was found that (Ba_1−xSr_x)₄(Sm_0.4Nd_0.6)_28/3 Ti₁₈O₅₄ ceramics are fully composed of BaSm₂Ti₄O₁₂ and BaNd₂Ti₅O₁₄ phases for all the compositions. The increasing x value (0.02 ≤ x ≤ 0.1) in (Ba_1−xSr_x)₄(Sm_0.4Nd_0.6)_28/3Ti₁₈O₅₄ ceramics can not only obtain high Q × f value but also effectively enhance the permittivity ( $ε_{r}$ ). The (Ba_1−xSr_x)₄(Sm_0.4Nd_0.6)_28/3Ti₁₈O₅₄ ceramic with x = 0.08, sintered at 1440 ℃ for 4 h, shows excellent microwave dielectric properties of permittivity ( $ε_{r}$ ) ≈ 93.19, quality factor (Q × f) ≈ 9770.14 GHz (at 3.415 GHz), and almost near-zero temperature coefficient of resonant frequency ( $τ_{f}$ ) ≈ +4.56 ppm/℃.

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Microstructures and microwave dielectric properties of (Ba_1−xSr_x)₄(Sm_0.4Nd_0.6)_28/3Ti₁₈O₅₄ solid solutions

Show Author's information Hide Author's Information Xianpei HUANG^{^a}, Xinyu LIU^{^a}, Fei LIU^{^b}(

), Changlai YUAN^{^a^,^c}, Jingjing QU^{^d}, Jiwen XU^{^a}, Changrong ZHOU^{^a}, Guohua CHEN^{^a}

^a School of Material Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, China

^b School of Mechanical and Electrical Engineering, Guilin University of Electronic Technology, Guilin 541004, China

^c Guangxi Key Laboratory of Information Materials, Guilin University of Electronic Technology, Guilin 541004, China

^d Department of Information Engineering, Guilin University of Aerospace Technology, Guilin 541004, China

Abstract

Keywords: tungsten bronze type, high permittivity, microwave dielectric properties

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Publication history

Received: 10 May 2017

Revised: 12 January 2016

Accepted: 12 July 2017

Published: 02 March 2017

Issue date: March 2017

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Acknowledgements

Financial supports of the National Natural Science Foundation of China (Grant No. 11464006) and the Middle-aged and Young Teachers in Colleges and/or Universities in Guangxi Basic Ability Promotion Project of China (Grant No. KY2016YB534) are gratefully acknowledged by the authors.

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