Effect of molding process on sintering and properties of (Mg1-xZnx)2SiO4 high-frequency dielectric ceramics

Hanbi Zhang, Xiangchun Liu, Kai Zhang, Jiayan Guan, Danni Chen, Miao Zhang, Jiahao Liu, Ziyao Wei, Feng Gao

科研成果: 期刊稿件文章同行评审

摘要

(Mg1-xZnx)2SiO4 (x = 0.2, 0.4, 0.6, 0.8) ceramics were prepared by different molding methods, the sintering characteristics and high-frequency dielectric properties of ceramics with different ratios were studied, and the optimum Mg/Zn ratio was determined under the experimental conditions. X-ray diffraction (XRD) patterns show that the specimens have a Forsterite structure when x < 0.4, while when x ≥ 0.4, the specimens have a Willemite structure. SEM images suggested that the density of hot pressing (Mg0.4Zn0.6)2SiO4 ceramics is better than that of dry pressing. The (Mg1-xZnx)2SiO4 ceramics obtained by hot pressing show an overall increase in bulk density. (Mg0.4Zn0.6)2SiO4 ceramics have the best high-frequency dielectric properties when sintered at 1325 °C, and the performance parameters of dry pressing and hot pressing are εr = 6.74, tanδ = 8.88 × 10–4 and εr = 6.36, tanδ = 1.35 × 10–3, respectively.

源语言英语
文章编号1702
期刊Journal of Materials Science: Materials in Electronics
35
25
DOI
出版状态已出版 - 9月 2024

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