DyVO4: A novel microwave dielectric ceramic with low dielectric constant

被引：9
|
作者：
Chen, Li [1 ]
Chen, Zhuting [1 ]
Li, Bo [1 ,2 ,3 ]
机构：
[1] Univ Elect Sci & Technol China, Sch Elect Sci & Engn, Chengdu, Peoples R China
[2] State Key Lab Elect Thin Films & Integrated Device, Chengdu, Peoples R China
[3] Natl Engn Res Ctr Electromagnet Radiat Control Mat, Chengdu, Peoples R China
来源：
PHYSICA B-CONDENSED MATTER | 2023年 / 649卷
关键词：
Microwave dielectric ceramic; Vanadate; Rare earth; Crystal structure; CRYSTAL-STRUCTURE; BOND-VALENCE; ZN; CA; MG; BA; NI; MO;
D O I：
10.1016/j.physb.2022.414462
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
A novel microwave dielectric ceramic DyVO4 was synthesized via a solid-state reaction route. Rietveld refine-ment was employed to obtained the detailed structural parameters of tetragonal DyVO4, and the vibrational modes of chemical bonds in the structure were further studied by Raman spectroscopy. The correlation between the microwave dielectric properties of DyVO4 and packing fraction, Raman spectrum and bond valence was investigated. DyVO4 ceramic sintered at 1150 degrees C possessed optimum microwave dielectric properties of epsilon r = 11.69, Q x f = 24382 GHz, and tau f =-19.39 ppm/degrees C.
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页数：6
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