Evolution of high temperature corrosion behavior of La-2(Zr0.7Ce0.3)(2)O-7 with the addition of Y2O3 thermal barrier coatings in contacts with vanadate-sulfate salts
文献类型：期刊论文
| 作者 | Xu ZH ; He LM ; Tang ZH ; Mu RD ; Cao XQ |
| 刊名 | journal of alloys and compounds
 |
| 出版日期 | 2012 |
| 卷号 | 536页码:106-112 |
| 关键词 | HOT-CORROSION EB-PVD THERMOPHYSICAL PROPERTIES LANTHANUM ZIRCONATE MOLTEN-SALT CONDUCTIVITY RESISTANCE CERAMICS LA2ZR2O7 TBCS |
| ISSN号 | 0925-8388 |
| 通讯作者 | xu zh |
| 中文摘要 | thermal barrier coatings (tbcs) of la-2(zr0.7ce0.3)(2)o-7 with the addition of 3 wt.% y2o3 (3y-lz7c3) were deposited by electron beam-physical vapor deposition (eb-pvd). the phase structure, surface and cross-sectional morphologies, hot corrosion behavior of the 3y-lz7c3 coatings were studied in detail. the present study investigates the hot corrosion performance of 3y-lz7c3 coating in the presence of molten mixture of na2so4 + v2o5 at 1173 k for 100 h. x-ray diffraction (xrd) indicates that the chemical reaction between navo3 and 3y-lz7c3 produces lavo4, yvo4, m-zro2 and ceo2, leaching la2o3 and y2o3 from 3y-lz7c3 and causing the progressive destabilization transformation from t' to m-zro2. the excess la2o3 in the as-deposited 3y-lz7c3 coating can largely aggravate the degradation of 3y-lz7c3 coating by both navo3 and na2so4 (usually formation of the mixtures of lavo3, (ykla1-k)(2)o2so4 and few of (ykla1-k)(2)(so4)(3) (k = i or j) phases), resulting in very rapid disintegration of the coating. phase transformation and chemical interaction are the primarily corrosive mechanisms for deterioration of 3y-lz7c3 coating. (c) 2012 elsevier b.v. all rights reserved. |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000306691900017 |
| 公开日期 | 2013-04-23 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/47939]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Xu ZH,He LM,Tang ZH,et al. Evolution of high temperature corrosion behavior of La-2(Zr0.7Ce0.3)(2)O-7 with the addition of Y2O3 thermal barrier coatings in contacts with vanadate-sulfate salts[J]. journal of alloys and compounds,2012,536:106-112. |
| APA | Xu ZH,He LM,Tang ZH,Mu RD,&Cao XQ.(2012).Evolution of high temperature corrosion behavior of La-2(Zr0.7Ce0.3)(2)O-7 with the addition of Y2O3 thermal barrier coatings in contacts with vanadate-sulfate salts.journal of alloys and compounds,536,106-112. |
| MLA | Xu ZH,et al."Evolution of high temperature corrosion behavior of La-2(Zr0.7Ce0.3)(2)O-7 with the addition of Y2O3 thermal barrier coatings in contacts with vanadate-sulfate salts".journal of alloys and compounds 536(2012):106-112. |
入库方式： OAI收割
来源：长春应用化学研究所
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