Hot corrosion behaviour of Gd2O3 doped LaMgAl11O19 thermal barrier coating exposed to molten V2O5 at 900°C

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成果类型：

期刊论文

作者：

Cao, Shengjun;Sun, Junbin;Chen, Ting;Wang, Juan;Chen, Mansheng;...

通讯作者：

Sun, Junbin(jbsun2018@hynu.edu.cn);Lu, Weihong(123377836@qq.com)

作者机构：

[Sun, Junbin; Lu, Weihong; Chen, Mansheng; Chen, Ting; Li, Wenyi; Cao, Shengjun; Wang, Juan] Hengyang Normal Univ, Hunan Engn Res Ctr Monitoring & Treatment Heavy M, Hunan Prov Univ Key Lab Funct Organomet Mat, Key Lab Funct Met Organ Cpds Hunan Prov,Coll Chem, Hengyang 421008, Peoples R China.

[Wang, Jinshuang] Xinyang Normal Univ, Henan Prov Key Lab Utilisat Nonmetall Mineral Sou, Xinyang 464000, Peoples R China.

[Hui, Yu] Shenyang Acad Environm Sci, Atmospher Environm Res Ctr, Shenyang 110016, Peoples R China.

通讯机构：

[Junbin Sun; Weihong Lu] C

College of Chemistry and Material Science, Hengyang Normal University, Hunan Province Universities Key Laboratory of Functional Organometallic Materials, Key Laboratory of Functional Metal-Organic Compounds of Hunan Province, Hunan Engineering Research Center for Monitoring and Treatment of Heavy Metals Pollution in the Upper Reaches of Xiangjiang River, Hengyang, 421008, PR China

语种：

英文

关键词：

LaMgAl11O19;Hot corrosion;Molten V2O5

期刊：

Ceramics International

ISSN：

0272-8842

年：

2021

卷：

期：

页码：

18792-18799

DOI：

10.1016/j.ceramint.2021.03.214

基金类别：

National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [51902092, 51902279]; Natural Science Foundation of Hunan ProvinceNatural Science Foundation of Hunan Province [2020JJ6041]; Key Program of Education Department of Hunan Province [19A068]; Foundation of Hengyang Normal University [19QD16]; Center for the Functionalization of Metal-Organic Frameworks Materials Studies [KYJG1802]; Distinguished Young Cadreman of Hengyang Normal University

机构署名：

本校为第一机构

院系归属：

化学与材料科学学院

摘要：

This study investigates the hot corrosion behaviours of La1-xGdxMgAl11O19 (x = 0, 0.2, 0.4, 0.6, 0.8) bulk ceramics and ceramic coatings. The hot corrosion resistance of the ceramic coating was inferior to that of the bulk ceramic, owing to the formation of an amorphous phase during the plasma spraying process. The smaller size of Gd3+ in comparison with La3+ facilitated the ready combination of Gd3+ with VO43−. LaVO4 was obtained as the corrosion product in the LaMgAl11O19 (LMA) sample. Upon doping the LMA with Gd2O3, the LaVO4 was almost ent...

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Hot corrosion behaviour of Gd2O3 doped LaMgAl11O19 thermal barrier coating exposed to molten V2O5 at 900°C

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