Influence of ZnO content and annealing temperature on the dielectric properties of ZnO/Al2O3 composite coatings

被引：20

作者：

Zhou, Liang ^{[1
]}

Zhou, Wancheng ^{[1
]}

Liu, Tao ^{[1
]}

Luo, Fa ^{[1
]}

Zhu, Dongmei ^{[1
]}

机构：

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

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2011年 / 509卷 / 19期

关键词：

Plasma spraying; Dielectric properties; Radar absorbing coating; Zinc oxide; SPRAY-PYROLYSIS; ZINC-OXIDE; THIN-FILMS; PERFORMANCE; PRESSURE; GLASS;

D O I：

10.1016/j.jallcom.2011.03.018

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

ZnO/Al2O3 coatings were prepared by atmospheric plasma spraying (APS) using ZnO powders and Al2O3 powders as starting materials. The dielectric properties of these coatings were discussed. Both the real part of permittivity and the energy loss increase greatly with increasing ZnO content over the frequency range 8.2-12.4 GHz, which can be ascribed to orientation polarization and relaxation polarization due to a higher ZnO content. The frequency-dependent maximum of the loss tangent is found to obey Debye theory. In addition, annealing temperature which leads to the change of ZnO content also plays an important role in the dielectric performance. Crown Copyright (C) 2011 Published by Elsevier B. V. All rights reserved.

引用

页码：5903 / 5907

页数：5

共 28 条

[11] Electromagnetic properties of composites containing elongated conducting inclusions
Lagarkov, AN
Sarychev, AK
[J]. PHYSICAL REVIEW B, 1996, 53 (10) : 6318 - 6336
[12] Laser remelting of plasma-sprayed conventional and nanostructured Al2O3-13 wt.%TiO2 coatings on titanium alloy
Li, Chonggui
Wang, You
Guo, Lixin
He, Junqi
Pan, Zhaoyi
Wang, Liang
[J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2010, 506 (01) : 356 - 363
[13] Shape-controlled synthesis and photocatalytic properties of three-dimensional and porous zinc oxide
Ma, Peiyan
Wu, Yan
Fu, Zhengyi
Wang, Weimin
[J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2011, 509 (08) : 3576 - 3581
[14] Sol infiltration and heat treatment of alumina-chromia plasma-sprayed coatings
Marple, BR
Voyer, J
Béchard, P
[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2001, 21 (07) : 861 - 868
[15] A comprehensive review of ZnO materials and devices -: art. no. 041301
Ozgür, U
Alivov, YI
Liu, C
Teke, A
Reshchikov, MA
Dogan, S
Avrutin, V
Cho, SJ
Morkoç, H
[J]. JOURNAL OF APPLIED PHYSICS, 2005, 98 (04) : 1 - 103
[16] Physical properties of Ga-doped ZnO thin films by spray pyrolysis
Rao, T. Prasada
Kumar, M. C. Santhosh
[J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2010, 506 (02) : 788 - 793
[17] Dielectric properties of nano ZnO-polyaniline composite in the microwave frequency range
Sharma, Bhupendra K.
Khare, Neeraj
Dhawan, S. K.
Guptaa, H. C.
[J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2009, 477 (1-2) : 370 - 373
[18] Synthesis and characterization of polyaniline-ZnO composite and its dielectric behavior
Sharma, Bhupendra K.
Gupta, Ajai K.
Khare, Neeraj
Dhawan, S. K.
Gupta, H. C.
[J]. SYNTHETIC METALS, 2009, 159 (5-6) : 391 - 395
[19] Influences in high quality zinc oxide films and their photoelectrochemical performance
Shinde, S. S.
Patil, Prakash S.
Gaikwad, R. S.
Mane, R. S.
Pawar, B. N.
Rajpure, K. Y.
[J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2010, 503 (02) : 416 - 421
[20] Dielectric relaxation of ZnO nanostructure synthesized by soft chemical method
Tripathi, Ramna
Kumar, Akhilesh
Bharti, Chandrahas
Sinha, T. P.
[J]. CURRENT APPLIED PHYSICS, 2010, 10 (02) : 676 - 681

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