Dielectric and microwave absorption properties of divalent-doped Na3Zr2Si2PO12 ceramics

被引：33

作者：

Chen, Dan ^{[1
]}

Luo, Fa ^{[1
]}

Gao, Lu ^{[1
]}

Zhou, Wancheng ^{[1
]}

Zhu, Dongmei ^{[1
]}

机构：

[1] Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Shaanxi, Peoples R China

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2018年 / 38卷 / 13期

关键词：

Na3Zr2Si2PO12; Divalent doping; Dielectric; Microwave absorption; CONDUCTIVITY; PERFORMANCE; COMPOSITES; PHASE;

D O I：

10.1016/j.jeurceramsoc.2018.05.039

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The work attempted to develop a new kind of high temperature microwave absorption material. Dense Na3Zr1.9M0.1Si2PO11.9 (M = Ca2+, Ni2+, Mg2+, Co2+, Zn2+) and Na3Zr2-xZnxSi2PO12-x (x = 0.1, 0.2, 0.3, 0.4) ceramics were prepared by solid-state reactions for phase, microstructure characterization and dielectric properties, microwave absorption properties analysis. Results show that the complex permittivity increases in all the divalent-doped Na3Zr2Si2PO12 ceramics. Na3Zr1.8Zn0.2Si2PO11.8 ceramic exhibits the highest complex permittivity and optimum microwave absorption performance. The lowest reflection loss is -28.1 dB at 9.88 GHz and the bandwidth is 4.14 GHz (8.26-12.4 GHz) with a thickness of 2.1 mm. It indicates that Na3Zr2Si2PO12 ceramic can be chosen as a potential candidate of microwave absorption material and the performance can be enhanced by divalent doping strategy.

引用

页码：4440 / 4445

页数：6

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