Bond, vibration and microwave dielectric characteristics of Zn1-x(Li0.5Bi0.5)xWO4 ceramics with low temperature sintering

Qin Zhang; Hua Su; Huaiwu Zhang; Xiaoli Tang

Journal of Materiomics (Mar 2022)

Bond, vibration and microwave dielectric characteristics of Zn1-x(Li0.5Bi0.5)xWO4 ceramics with low temperature sintering

Qin Zhang,
Hua Su,
Huaiwu Zhang,
Xiaoli Tang

Affiliations

Qin Zhang: State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054, China; Corresponding author.
Hua Su: State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054, China; Yangtze River Delta Research Institute of UESTC (Huzhou), Huzhou, 313000, China; Corresponding author. State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054, China.
Huaiwu Zhang: State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054, China
Xiaoli Tang: State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054, China

Journal volume & issue: Vol. 8, no. 2
pp. 392 – 400

Abstract

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The bond, vibration and microwave dielectric characteristics of Zn1-x (Li0.5Bi0.5)xWO4 (x = 0–0.12) ceramics were investigated by XRD refinement, Raman and FT-IR spectroscopy and complex bond valence theory. The results showed that proper substitution of (Li0.5Bi0.5)2+ can improve the sintering characteristics and microwave dielectric properties of ZnWO4. The increase of Q×f value was mainly attributed to dense and uniform microstructure, and the subsequent decrease resulted from the deterioration of structural stability and relative density. According to the complex bond valence theory, the chemical bond characteristics of ZnWO4 and Bi2WO6 played an important role in the dielectric properties of the samples. Additionally, the samples (x = 0.02) sintered at 900 °C showed satisfactory properties: εr = 15.332, Q×f = 35,762 GHz, and τf = −65 ppm/°C, making it a potential candidate material for LTCC applications.

Published in Journal of Materiomics

ISSN: 2352-8478 (Print); 2352-8486 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials
Website: https://www.sciencedirect.com/journal/journal-of-materiomics

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