Preparation of Ni/PZT Core-shell Nanoparticles and Their Electromagnetic Properties

被引：0

作者：

范桂芬 ^{[1
,2
]}

XU Xing ^{[1
,2
]}

WANG Xiaochuan ^{[1
,2
]}

LU Wenzhong ^{[1
,2
]}

LIANG Fei ^{[1
,2
]}

WANG Kai ^{[1
,2
]}

机构：

[1] School of Optical and Electronic Information, Huazhong University of Science and Technology

[2] Key Lab of Functional Materials for Electronic Information, MOE, Huazhong University of Science and Technology

来源：

Journal of Wuhan University of Technology(Materials Science) | 2018年 / 33卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Ni nanoparticles; sol-gel method; in situ reaction; PZT coating layer; electromagnetic property;

D O I：

暂无

中图分类号：

TB383.1 [];

学科分类号：

070205 ; 080501 ; 1406 ;

摘要：

The Ni nanoparticles coated with Pb(Zr,Ti)O3(PZT) were synthesized by a sol-gel method and in situ reaction. And their structure, oxidation resistance, and electromagnetic properties were investigated. The X-ray diffraction patterns(XRD) exhibited that a small amount of impure phase characterized to Ni(OH)2was detected from the ammonia-treated Ni nanoparticles and the ammonia-treated Ni nanoparticles coated with PZT. After being pre-treated with aqueous ammonia, the PZT coating layer was more uniform and about 10 nm in thickness. The oxidation resistance of the ammonia-treated Ni nanoparticles coated with PZT, compared with that of the non-treated ones, was improved by about 66 ℃. The PZT shell layer prepared by in-situ reaction can greatly reduce the dielectric constant and improve the natural resonance loss at high frequency, so as to obtain the optimal impedance matching performance of the electromagnetic wave transmission.

引用

页码：9 / 14

页数：6

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