Microwave dielectric properties of low temperature sintering Ca5Mn4(VO4)6 ceramics

被引：23
|
作者：
Yao, Guo-guang [1 ]
Pei, Cui-Jin [1 ]
Liu, Peng [2 ]
Zhou, Jian-ping [2 ]
Zhang, Huai-wu [3 ]
机构：
[1] Xian Univ Posts & Telecommun, Sch Sci, Xian 710121, Peoples R China
[2] Shaanxi Normal Univ, Coll Phys & Informat Technol, Xian 710062, Peoples R China
[3] Univ Elect Sci & Technol China, Key Lab Elect Thin Film & Integrated Device, Chengdu 610054, Peoples R China
来源：
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2016年 / 27卷 / 07期
基金：
中国国家自然科学基金;
关键词：
CRYSTAL-STRUCTURE; CA;
D O I：
10.1007/s10854-016-4697-9
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Low temperature sinterable Ca5Mn4(VO4)(6) ceramics were fabricated by the conventional solid-state reaction route and their microwave dielectric properties were investigated for the first time. The formation of Ca5Mn4(VO4)(6) main phase was confirmed by XRD diffraction pattern. The correlations between sintering temperature, packing fraction, and microwave dielectric properties in Ca5Mn4(VO4)(6) ceramics were also studied. The Ca5Mn4(VO4)(6) ceramics sintered at 875 A degrees C for 5 h possessed good microwave dielectric properties: epsilon(r) = 11.2, Q x f = 33, 800 GHz (at 10.5 GHz) and tau(f) = -70 ppm/A degrees C. The material was found to react seriously with Ag when sintered at 875 A degrees C, forming (AgCa2)Mn-2(VO4)(3) phase.
引用
收藏
页码：7292 / 7296
页数：5
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