Corrosion Resistance of Plasma Sprayed G-Al2O3-13% TiO2 Glass-ceramic Composite Coatings

doi:10.11933/j.issn.1007-9289.20191107003

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	Corrosion Resistance of Plasma Sprayed G-Al2O3-13% TiO2 Glass-ceramic Composite Coatings
	Zhang, Hao 2,3; Zhang, Jingjing 1,2; Liu, Xu 2; Lin, Hai 2; Li, Tingju 1
刊名	Zhongguo Biaomian Gongcheng/China Surface Engineering
	2020-06-23
卷号	33 期号:3 页码:95-103
关键词	Alumina Aluminum oxide Calcium oxide Ceramic coatings Composite coatings Corrosion resistance Electrochemical corrosion Glass ceramics Magnesia Oxide minerals Plasma jets Plasma spraying Porosity Powder coatings Silica Silicates Sodium chloride Sprayed coatings Titanium dioxide 3.5% nacl solutions Different proportions Electrochemical impedance Glass ceramic composites Plasma sprayed Plasma-sprayed ceramic coatings Polarization curves Porosity of coatings
ISSN号	10079289
DOI	10.11933/j.issn.1007-9289.20191107003
英文摘要	In order to reduce the porosity and improve the corrosion resistance of plasma sprayed ceramic coatings, CaO-MgO-Al2O3-SiO2 (G) silicate glass powders is doped into commercially used Al2O3-13% TiO2(AT13) powder in different proportions. Thus, AT13, G:AT13=1:10 (GA-1), G:AT13=2:10 (GA-2), G:AT13=3:10 (GA-3) coatings are prepared by plasma spraying. The phases and morphologies of the coating were analyzed, and the corrosion resistance of the coating was studied by immersion corrosion and electrochemical corrosion. It can be concluded that phases compositions of the tested four coatings are α-Al2O3, γ-Al2O3, rutile TiO2 and Al2TiO5; the porosity of coatings are 13.2% (AT13), 11.4% (GA-1), 7.8% (GA-2) and 8.8% (GA-3), respectively. After 1000 h immersion in 3.5% NaCl solution, the corrosion area of the GA-X (X=1, 2, 3) coatings are all decreased compared with the pure AT13 coating; the electrochemical impedance (EIS) and kinetic potential polarization curve (PD) results showed that the corrosion resistance of the coatings increased with the increasing amount of the doped glass powder. GA-2 coating got the best corrosion resistance. © 2020, Editorial Office of CHINA SURFACE ENGINEERING. All right reserved.
WOS研究方向	Materials Science
语种	中文
出版者	Chinese Mechanical Engineering Society
WOS记录号	WOS:000628791600009
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/151062]
专题	兰州理工大学
作者单位	1.School of Materials Science and Engineering, Dalian University of Technology, Dalian; 116024, China; 2.School of Textile and Material Engineering, Dalian Polytechnic University, Dalian; 116033, China; 3.School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Zhang, Hao,Zhang, Jingjing,Liu, Xu,et al. Corrosion Resistance of Plasma Sprayed G-Al2O3-13% TiO2 Glass-ceramic Composite Coatings[J]. Zhongguo Biaomian Gongcheng/China Surface Engineering,2020,33(3):95-103.
APA	Zhang, Hao,Zhang, Jingjing,Liu, Xu,Lin, Hai,&Li, Tingju.(2020).Corrosion Resistance of Plasma Sprayed G-Al2O3-13% TiO2 Glass-ceramic Composite Coatings.Zhongguo Biaomian Gongcheng/China Surface Engineering,33(3),95-103.
MLA	Zhang, Hao,et al."Corrosion Resistance of Plasma Sprayed G-Al2O3-13% TiO2 Glass-ceramic Composite Coatings".Zhongguo Biaomian Gongcheng/China Surface Engineering 33.3(2020):95-103.