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High-temperature corrosion behaviour of plasma sprayed lanthanum magnesium hexaluminate coating by vanadium oxide
X. L. Chen; X. Q. Cao; B. L. Zou; J. Gong; C. Sun
2015
Source PublicationJournal of the European Ceramic Society
ISSN0955-2219
Volume35Issue:1Pages:227-236
AbstractPlasma sprayed lanthanum magnesium hexaluminate (LaMgAl11O19, LaMA) coating degraded by molten V2O5 at 710-1050 degrees C was studied. LaVO4, Mg0.388Al2.408O4 and gamma-Al2O3 were the main corrosion products at 710 degrees C and 800 degrees C, while the corrosion products were LaVO4, MgAl2O4, alpha-Al2O3 at 950 degrees C and 1050 degrees C. AlVO4 as an important intermediate corrosion product had strong influences on the formations of gamma- or alpha-Al2O3 at different temperature regions. Recrystallization and hot corrosion happened to LaMA coating simultaneously at 950 degrees C and 1050 degrees C. However, at 800 degrees C, LaMA coating underwent the most serious degradation along the coating thickness direction due to the presence of amorphous phase. (C) 2014 Elsevier Ltd. All rights reserved.
description.department[chen, xiaolong ; gong, jun ; sun, chao] chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china. [chen, xiaolong] natl inst mat sci, tsukuba, ibaraki 3050047, japan. [cao, xueqiang ; zou, binglin] chinese acad sci, changchun inst appl chem, state key lab rare earth resources utilizat, changchun 130022, peoples r china. ; chen, xl (reprint author), natl inst mat sci, 1-2-1 sengen, tsukuba, ibaraki 3050047, japan. ; xlchen@imr.ac.cn
KeywordThermal Barrier Coating Hexaluminate Plasma Spray Hot Corrosion Thermal Barrier Coatings Yttria-stabilized Zirconia Sulfate-vanadate Salt Hot-corrosion Magnetoplumbite Structure Hexaaluminate Degradation Alvo4 System Damage
URL查看原文
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/73198
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
X. L. Chen,X. Q. Cao,B. L. Zou,et al. High-temperature corrosion behaviour of plasma sprayed lanthanum magnesium hexaluminate coating by vanadium oxide[J]. Journal of the European Ceramic Society,2015,35(1):227-236.
APA X. L. Chen,X. Q. Cao,B. L. Zou,J. Gong,&C. Sun.(2015).High-temperature corrosion behaviour of plasma sprayed lanthanum magnesium hexaluminate coating by vanadium oxide.Journal of the European Ceramic Society,35(1),227-236.
MLA X. L. Chen,et al."High-temperature corrosion behaviour of plasma sprayed lanthanum magnesium hexaluminate coating by vanadium oxide".Journal of the European Ceramic Society 35.1(2015):227-236.
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