Effect of initial particle size on microstructure and dielectric properties of Cr/Al2O3 coatings deposited by plasma spraying | |
Department | 固体润滑国家重点实验室 |
Zhou, Liang1,3,4; Chen, Meng1; Dong, Yanli2; Hua, Dongpeng1; Wang, Yuxin1 | |
2017 | |
Source Publication | Journal of Materials Science: Materials in Electronics |
ISSN | 0957-4522 |
Volume | 28Issue:1Pages:167-173 |
Abstract | Cr/Al2O3 coatings were deposited by low-power plasma spray technology using spray-dried feedstock powders with different sized initial Cr particles. XRD results revealed that γ-Al2O3 phase formed in the process of plasma spraying. The effect of initial Cr particle size on the microstructure was investigated. It was found that the coatings deposited with larger initial Cr particles possessed denser structure and lower porosity, and the Cr clusters in these coatings were more prone to form due to the connections of adjacent metal lamellae. Moreover, the initial Cr particle size had a significant effect on the dielectric properties. The complex permittivity of as-sprayed Cr/Al2O3 coatings was evidently enhanced with increasing initial Cr particle size, which was attributed to the interfacial polarization and the formation of metallic conductive clusters. |
Subject Area | 材料科学与物理化学 |
DOI | 10.1007/s10854-016-5507-0 |
Funding Organization | the National Natural Science Foundation of China (No. 51302018);Natural Science Foundation of Shaanxi Province (No. 2014JQ6210);the Fundamental Research Funds for the Central Universities from Chang’an University (No. 310831151082);the foundation of State Key Laboratory of Solid Lubrication in LICP (No. LSL-1412);the foundation of State Key Laboratory for Mechanical Behavior of Materials in XJTU (No. 20151704);the Special Fund for Innovation Team Research of Central Colleges in CHD (No. 310831163401), China |
Indexed By | SCI |
If | 2.019 |
Language | 英语 |
compositor | 第四作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/21289 |
Collection | 固体润滑国家重点实验室(LSL) |
Corresponding Author | Zhou, Liang |
Affiliation | 1.Changan Univ, Sch Mat Sci & Engn, Xian 710064, Peoples R China 2.Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China 3.Univ Toronto, Ctr Adv Coating Technol, Toronto, ON M5S 3G8, Canada 4.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China |
Recommended Citation GB/T 7714 | Zhou, Liang,Chen, Meng,Dong, Yanli,et al. Effect of initial particle size on microstructure and dielectric properties of Cr/Al2O3 coatings deposited by plasma spraying[J]. Journal of Materials Science: Materials in Electronics,2017,28(1):167-173. |
APA | Zhou, Liang,Chen, Meng,Dong, Yanli,Hua, Dongpeng,&Wang, Yuxin.(2017).Effect of initial particle size on microstructure and dielectric properties of Cr/Al2O3 coatings deposited by plasma spraying.Journal of Materials Science: Materials in Electronics,28(1),167-173. |
MLA | Zhou, Liang,et al."Effect of initial particle size on microstructure and dielectric properties of Cr/Al2O3 coatings deposited by plasma spraying".Journal of Materials Science: Materials in Electronics 28.1(2017):167-173. |
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