CMAS corrosion behavior of a novel high entropy (Nd0.2Gd0.2Y0.2Er0.2Yb0.2)2Zr2O7 thermal barrier coating materials

被引：18
作者：
Lin, Guangqiang [1 ,2 ]
Wang, Yanli [2 ]
Yang, Lingxu [1 ]
Sun, Rongfa [1 ,2 ]
Wu, Liankui [3 ]
Zhang, Xiaofeng [4 ,5 ]
Liu, Huijun [1 ]
Zeng, Chaoliu [1 ]
机构：
[1] Songshan Lake Mat Lab, Dongguan 523808, Peoples R China
[2] Guangxi Univ, Sch Chem & Chem Engn, Nanning 530004, Peoples R China
[3] Sun Yat Sen Univ, Sch Mat, Shenzhen 518107, Peoples R China
[4] Guangdong Acad Sci, Inst New Mat, Natl Engn Lab Modern Mat Surface Engn Technol, Guangzhou 510650, Peoples R China
[5] Guangdong Acad Sci, Inst New Mat, Key Lab Guangdong Modern Surface Engn Technol, Guangzhou 510650, Peoples R China
来源：
CORROSION SCIENCE | 2023年 / 224卷
关键词：
Thermal barrier coatings; Rare earth zirconate; Fluorite structure; High entropy; CMAS corrosion; High temperature; RESISTANCE; GLASS; INFILTRATION; TEMPERATURE; CERAMICS;
D O I：
10.1016/j.corsci.2023.111529
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The CMAS corrosion behavior of a novel high entropy material (Nd0.2Gd0.2Y0.2Er0.2Yb0.2)(2)Zr2O7 with thermal conductivity of 1.215 W center dot m(-1)center dot K-1 was investigated. Results show that a dense layer composed of apatite type RE8Ca2(SiO4)(6)O-2 phase and RE/Ca-ZrO2 forms in front of the reaction layer, which dramatically decreases the infiltration rate of CMAS from 20 to 5.3 mu m/h at 1300 degrees C. Moreover, the elements with a larger ion radius are easier to form apatite type phase to slow down the further infiltration of CMAS. This study reveals that the high entropy (Nd0.2Gd0.2Y0.2Er0.2Yb0.2)(2)Zr2O7 ceramic is a promising candidate for TBCs with extreme resistance to CMAS corrosion.
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页数：14
相关论文
共 53 条
[11]   CMAS resistance characteristics of LaPO4/YSZ thermal barrier coatings at 1250°C-1350°C [J].
Guo, Lei ;
Yan, Zheng ;
Yu, Yang ;
Yang, Jun ;
Li, Mingzhu .
CORROSION SCIENCE, 2019, 154 :111-122
[12]  
Korneev V. R, 1971, INORG MATER, V7, P781
[13]   Infiltration-inhibiting reaction of gadolinium zirconate thermal barrier coatings with CMAS melts [J].
Kraemer, Stephan ;
Yang, James ;
Levi, Carlos G. .
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2008, 91 (02) :576-583
[14]   Experimental and numerical investigation on the thermal and mechanical behaviours of thermal barrier coatings exposed to CMAS corrosion [J].
Li, Dongxu ;
Jiang, Peng ;
Gao, Renheng ;
Sun, Fan ;
Jin, Xiaochao ;
Fan, Xueling .
JOURNAL OF ADVANCED CERAMICS, 2021, 10 (03) :551-564
[15]   Preparation and thermophysical properties of a novel dual-phase and single-phase rare-earth-zirconate high-entropy ceramics [J].
Li Wang, Yan ;
Lin, Guang Qiang ;
Yang, Ling Xu ;
Li, Jin Zhi ;
Zhang, Xiao Feng ;
Liu, Hui Jun ;
Zeng, Chao Liu .
JOURNAL OF ALLOYS AND COMPOUNDS, 2023, 938
[16]   Mechanical properties of hot-pressed high-entropy diboride-based ceramics [J].
Liu, Ji-Xuan ;
Shen, Xiao-Qin ;
Wu, Yue ;
Li, Fei ;
Liang, Yongcheng ;
Zhang, Guo-Jun .
JOURNAL OF ADVANCED CERAMICS, 2020, 9 (04) :503-510
[17]   Advanced structural ceramics in aerospace propulsion [J].
Padture, Nitin P. .
NATURE MATERIALS, 2016, 15 (08) :804-809
[18]   Materials science - Thermal barrier coatings for gas-turbine engine applications [J].
Padture, NP ;
Gell, M ;
Jordan, EH .
SCIENCE, 2002, 296 (5566) :280-284
[19]   The Influence of Reactive PS-PVD Process Parameters on the Microstructure and Thermal Properties of Yb2Zr2O7 Thermal Barrier Coating [J].
Pedrak, Pawel ;
Goral, Marek ;
Dychton, Kamil ;
Drajewicz, Marcin ;
Wierzbinska, Malgorzata ;
Kubaszek, Tadeusz .
MATERIALS, 2022, 15 (04)
[20]   Gadolinium oxide solubility in molten silicate: dissolution mechanism and stability of Ca2Gd8(SiO4)6O2 and Ca3Gd2(Si3O9)2 silicate phases [J].
Perrudin, F. ;
Rio, C. ;
Vidal-Setif, M. H. ;
Petitjean, C. ;
Panteix, P. J. ;
Vilasi, M. .
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2017, 37 (07) :2657-2665
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