Thermal stability and thermal cycling behavior of LGYYSZ/YSZ thermal barrier coatings fabricated by atmospheric plasma spraying

被引:0
作者
Wang, Peifeng [1 ,2 ]
Chen, Dong [1 ]
Wang, Quansheng [2 ]
Ma, Zhuang [1 ,2 ]
Liu, Ling [1 ,2 ]
机构
[1] Beijing Inst Technol, Chongqing Innovat Ctr, Chongqing 401120, Peoples R China
[2] Beijing Inst Technol, Sch Mat Sci & Engn, Beijing 100081, Peoples R China
关键词
Thermal barrier coatings; Rare earth oxides doping; Atmospheric plasma spraying; Thermal cycling behavior; PHASE-STABILITY; RESISTANCE; COMPOUND; YSZ;
D O I
10.1016/j.surfcoat.2025.132038
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Double ceramic layer (DCL) represents an efficacious approach to reinforce the high-temperature durability of thermal barrier coatings (TBCs), but research on the influence of intermediate ceramic (IC) thickness on coating failure mode lacks systematic research. In this study, 1.0La-2.0Gd-2.0Yb-4.5Y-ZrO2 coatings with three YSZ IC of different thicknesses (LGYYSZ/YSZ) were prepared via atmospheric plasma spraying (APS). A comprehensive investigation was conducted on the thermal cycling performance of the spray-as-deposited TBCs at 1400 degrees C. The results indicated that the incorporation of YSZ IC significantly enhances the stress resilience at the TC/IC interface, fortifies the vulnerable regions of the coating, and boosts its resistance to thermal shock. With the increase of YSZ thickness, stress on the surface of the DCL coating increases and the horizontal cracks extend to each other, resulting in laminar stripping and peeling cracking phenomenon on the surface of the coating and makes the position with greater stress fall into the LGYYSZ layer. Thus, the interface stress level and the interface cracking risk of TC/IC decreases. At a YSZ layer thickness of 200 mu m, the coating exhibits the maximum thermal shock resistance, achieving a lifespan of 178 cycles. In summary, a properly selected transition layer thickness can effectively redirect stress concentration and alter failure locations, thereby enhancing the thermal cycle life of the LGYYSZ/YSZ TBC.
引用
收藏
页数:10
相关论文
共 45 条
  • [1] Phase stability of ZrO2 9.5Y2O3 5.6Yb2O3 5.2Gd2O3 compound at 1100 °C and 1300 °C for advanced TBC applications
    Bahamirian, M.
    Hadavi, S. M. M.
    Farvizi, M.
    Rahimipour, M. R.
    Keyvani, A.
    [J]. CERAMICS INTERNATIONAL, 2019, 45 (06) : 7344 - 7350
  • [2] High-temperature cyclic oxidation of micro- and nano-ZrO2-25wt.% CeO2-2.5wt.%Y2O3 thermal barrier coatings at 1300 °C
    Bahamirian, Milad
    Keyvani, Ahmad
    Irankhah, Reza
    Farvizi, Mohammad
    [J]. SURFACE & COATINGS TECHNOLOGY, 2023, 474
  • [3] Thermal shock behavior of Ba(Mg1/3Ta2/3)O3-YSZ double-ceramic-layer thermal barrier coatings prepared by atmospheric plasma spraying
    Cao, Yupeng
    Ning, Xianjin
    Wang, Quansheng
    [J]. SURFACE & COATINGS TECHNOLOGY, 2021, 409
  • [4] Microstructure, thermal characteristics, and thermal cycling behavior of the ternary rare earth oxides (La2O3, Gd2O3, and Yb2O3) co-doped YSZ coatings
    Chen, Dong
    Wang, Quansheng
    Liu, Yanbo
    Ning, Xianjin
    [J]. SURFACE & COATINGS TECHNOLOGY, 2020, 403
  • [5] Microstructures and properties of double-ceramic-layer thermal barrier coatings of La2(Zr0.7Ce0.3)2O7/8YSZ made by atmospheric plasma spraying
    Chen, Shuhai
    Xiang, Jianying
    Huang, Jihua
    Zhao, Xingke
    [J]. APPLIED SURFACE SCIENCE, 2015, 340 : 173 - 181
  • [6] Thermal cycling failure of the multilayer thermal barrier coatings based on LaMgAl11O19/YSZ
    Chen, Xiaolong
    Sun, Yiwei
    Hu, Jinkang
    Li, Jie
    Deng, Chunming
    Wu, Duoli
    Zeng, Dahai
    Li, Wei
    Liu, Ying
    Zou, Binglin
    Cao, Xueqiang
    [J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2020, 40 (04) : 1424 - 1432
  • [7] Gradient thermal cyclic behaviour of La2Zr2O7/YSZ DCL-TBCs with equivalent thermal insulation performance
    Cheng, Bo
    Yang, Guan-Jun
    Zhang, Qiang
    Yang, Ning
    Zhang, Meng
    Zhang, Yuming
    Li, Cheng-Xin
    Li, Chang-Jiu
    [J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2018, 38 (04) : 1888 - 1896
  • [8] Thermal stability of double-ceramic-layer thermal barrier coatings with various coating thickness
    Dai, Hui
    Zhong, Xinghua
    Li, Hayan
    Zhang, Yanfei
    Meng, Jian
    Cao, Xueqiang
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2006, 433 (1-2): : 1 - 7
  • [9] Thermal barrier coating materials for SI engine
    Dhomne, Shailesh
    Mahalle, Ashish M.
    [J]. JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, 2019, 8 (01): : 1532 - 1537
  • [10] Microstructural, mechanical and thermal characteristics of zirconia-based thermal barrier coatings deposited by plasma spraying
    Di Girolamo, G.
    Blasi, C.
    Brentari, A.
    Schioppa, M.
    [J]. CERAMICS INTERNATIONAL, 2015, 41 (09) : 11776 - 11785