Rational optimizations of high K microwave dielectric ceramic Bi2(Li0.5Ta1.5)O7 toward LTCC applications

IF 3.5 3区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Journal of the American Ceramic Society Pub Date : 2024-12-15 DOI:10.1111/jace.20316

Diming Xu, Haowei Zhang, Lixia Pang, Fayaz Hussain, Tao Zhou, Shi-Kuan Sun, Zhijiao Chen, Di Zhou

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Abstract

Microwave dielectric ceramics have drawn intensive interests in recent years due to the advanced development in communication area. High-permittivity dielectric ceramics have thus become the highlight owing to dielectric ceramics with high permittivity could meet the demand of electronic components in both stabilization and miniaturization features. Bi₂(Li_0.5Ta_1.5)O₇ shows its great potential among various high-permittivity dielectric ceramics with a suitable permittivity and a considerable quality factor. Based on previous studies, a series of rational optimizations were conducted on Bi₂(Li_0.5Ta_1.5)O₇ to manipulate the temperature coefficient of resonant frequency (TCF) and the sintering temperature for potential Low Temperature Co-fired Ceramic (LTCC) applications. Two distinguished ceramics were obtained, Bi₂(Li_0.5Ta_1.5)O₇–0.03Bi₂O₃ (sintering temperature of 850°C, ε_r ∼ 64.1, Qf ∼ 8510 GHz, TCF—25.3 ppm/°C) and Bi₂[(Li_0.5Ta_1.5)_0.975Ti_0.05]O₇–0.015Bi₂O₃ (sintering temperature of 980°C, ε_r ∼ 66.2, Qf ∼ 10 950 GHz, TCF—8.5 ppm/°C). Dielectric resonator antenna (DRA) simulation was subsequently conducted and proved the ceramics holding excellent potential for microwave applications.

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来源期刊

Journal of the American Ceramic Society 工程技术-材料科学：硅酸盐

CiteScore

7.50

自引率

7.70%

发文量

590

审稿时长

2.1 months

期刊介绍： The Journal of the American Ceramic Society contains records of original research that provide insight into or describe the science of ceramic and glass materials and composites based on ceramics and glasses. These papers include reports on discovery, characterization, and analysis of new inorganic, non-metallic materials; synthesis methods; phase relationships; processing approaches; microstructure-property relationships; and functionalities. Of great interest are works that support understanding founded on fundamental principles using experimental, theoretical, or computational methods or combinations of those approaches. All the published papers must be of enduring value and relevant to the science of ceramics and glasses or composites based on those materials. Papers on fundamental ceramic and glass science are welcome including those in the following areas: Enabling materials for grand challenges[...] Materials design, selection, synthesis and processing methods[...] Characterization of compositions, structures, defects, and properties along with new methods [...] Mechanisms, Theory, Modeling, and Simulation[...] JACerS accepts submissions of full-length Articles reporting original research, in-depth Feature Articles, Reviews of the state-of-the-art with compelling analysis, and Rapid Communications which are short papers with sufficient novelty or impact to justify swift publication.

文献相关原料

公司名称

产品信息

阿拉丁

TiO2

阿拉丁

Ta2O5