High-Frequency Dielectric Properties of Nanocomposite and Ceramic Titanates

被引：3
|
作者：
Rinkevich, Anatoly B. [1 ]
Kuznetsov, Evgeny A. [2 ]
Perov, Dmitry V. [1 ]
Bovtun, Viktor [3 ]
Kempa, Martin [3 ]
Nuzhnyy, Dmitry [3 ]
Savinov, Maxim [3 ]
Samoilovich, Mikhail I. [4 ]
Klescheva, Svetlana M. [4 ]
Ryabkov, Yury I. [5 ]
Tsvetkova, Ekaterina V. [5 ]
机构：
[1] Russian Acad Sci, Inst Met Phys, Ural Branch, Ekaterinburg 620990, Russia
[2] State Social Pedag Acad, Nizhny Tagil 622031, Russia
[3] Acad Sci Czech Republ, Inst Phys, Prague 18221, Czech Republic
[4] Cent Res Technol Inst TECHNOMASH, Moscow 121108, Russia
[5] Russian Acad Sci, Inst Chem, Ural Branch, Syktyvkar 167982, Russia
来源：
IEEE TRANSACTIONS ON NANOTECHNOLOGY | 2015年 / 14卷 / 03期
关键词：
Electromagnetic waveguide; opal matrix; transmission and reflection coefficients; microwave conductivity; dielectric spectra; MICROWAVE; SPECTROSCOPY; FILMS;
D O I：
10.1109/TNANO.2015.2419735
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：
A set of ferroelectric and related titanate ceramics and nanocomposites were prepared and their dielectric and electromagnetic properties were studied in a broad frequency range, including microwave, millimeter-wave and THz frequencies. Dielectric and conductivity spectra of the opal-matrix nanocomposites were typical for conductor-dielectric composites and could be described by Cole-Cole relaxations and Drude conductivity. The highest values of microwave dielectric permittivity, losses and conductivity were observed in the composite withPr(2)Ti(2)O(7) nanoparticles. Absorption properties of ceramic and some composite titanates were measured and estimated in the microwave range. Some of the studied compositions were found to be interesting for development of microwave absorbing or shielding materials.
引用
收藏
页码：585 / 592
页数：8
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