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Corrosion of lanthanum magnesium hexaaluminate as plasma-sprayed coating and as bulk material when exposed to molten V2O5-containing salt
X. L.; Cao Chen, X. Q.; Zou, B. L.; Gong, J.; Sun, C.
2015
Source PublicationCorrosion Science
ISSN0010-938X
Volume91Pages:185-194
AbstractCorrosion of LaMgAl11O19 (LaMA) bulk and plasma sprayed coating was studied in molten V2O5-containing salt at 710-1050 degrees C in air. Results indicate that the well crystallized LaMA bulk exhibited prior corrosion resistance to the plasma sprayed LaMA coating with amorphous phase and reduced chemical bond strength in its crystal structure. La-O chemical bonds with the lowest bond energies were the easiest bonds in the LaMA crystal to be broken by molten V2O5-containing salt attack to form LaVO4 at each temperature level for both LaMA bulk and coating. Corrosion products of the LaMA coating were much different at temperature below 900 degrees C. (C) 2014 Elsevier Ltd. All rights reserved.
description.department[chen, xiaolong ; gong, jun ; sun, chao] chinese acad sci, inst met res, 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
KeywordCeramic Molten Salt Hot Corrosion Oxide Coatings Thermal Barrier Coatings Sulfate-vanadate Salt Hot Corrosion Calcium Hexaluminate Vanadium-oxide Behavior Magnetoplumbite Mechanism Oxidation Alumina
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Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/73775
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
X. L.,Cao Chen, X. Q.,Zou, B. L.,et al. Corrosion of lanthanum magnesium hexaaluminate as plasma-sprayed coating and as bulk material when exposed to molten V2O5-containing salt[J]. Corrosion Science,2015,91:185-194.
APA X. L.,Cao Chen, X. Q.,Zou, B. L.,Gong, J.,&Sun, C..(2015).Corrosion of lanthanum magnesium hexaaluminate as plasma-sprayed coating and as bulk material when exposed to molten V2O5-containing salt.Corrosion Science,91,185-194.
MLA X. L.,et al."Corrosion of lanthanum magnesium hexaaluminate as plasma-sprayed coating and as bulk material when exposed to molten V2O5-containing salt".Corrosion Science 91(2015):185-194.
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