High-temperature compressive creep behavior and mechanism of Hf6Ta2O17 ceramic as a candidate for thermal barrier coatings

被引：3
作者：
Zheng, Y. X. [1 ,2 ]
Hu, X. P. [1 ,2 ]
Liu, S. [1 ,2 ]
Liu, Q. [1 ,2 ]
Zou, Y. [1 ,2 ]
Guo, J. W. [1 ,2 ]
Zhu, W. [1 ,2 ]
机构：
[1] Xiangtan Univ, Sch Mat Sci & Engn, Key Lab Key Film Mat & Applicat Equipment Hunan Pr, Xiangtan 411105, Hunan, Peoples R China
[2] Xiangtan Univ, Sch Mat Sci & Engn, Key Lab Low Dimens Mat & Applicat Technol, Minist Educ, Xiangtan 411105, Hunan, Peoples R China
来源：
CERAMICS INTERNATIONAL | 2023年 / 49卷 / 18期
关键词：
High-temperature creep; Creep mechanism; Grain boundary sliding; Dislocation movement; YTTRIA-STABILIZED ZIRCONIA; PLASTIC-DEFORMATION; CONDUCTIVITY; FLOW;
D O I：
10.1016/j.ceramint.2023.06.248
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A novel Hf6Ta2O17 ceramics is prepared by a solid-state reaction method. High-temperature creep behavior of Hf6Ta2O17 and 8YSZ ceramics are investigated by compressive creep test combined with a digital image correlation (DIC) method. It is found that the creep mechanism of Hf6Ta2O17 ceramics is controlled by grain boundary sliding associated with dislocation movement (stress exponent-2-3, and activation energy of 600-620 kJ/mol). Grain boundary sliding accommodated to the interface reaction is the main creep mechanism of 8YSZ ceramics (stress exponent-2, and activation energy of 425-465 kJ/mol). Hf6Ta2O17 ceramics have higher creep resistance than 8YSZ ceramics under the same conditions.
引用
收藏
页码：29905 / 29912
页数：8
相关论文
共 50 条
  • [21] Thermal cycling behavior and failure mechanism of Yb2O3-doped yttria-stabilized zirconia thermal barrier coatings
    Dai, Jianwei
    Huang, Bing
    He, Limin
    Mu, Rende
    Tian, He
    Xu, Zhenhua
    MATERIALS TODAY COMMUNICATIONS, 2023, 34
  • [22] Hot Corrosion Behavior of Double-ceramic-layer LaTi2Al9O19/YSZ Thermal Barrier Coatings
    Xie Xiaoyun
    Guo Hongbo
    Gong Shengkai
    Xu Huibin
    CHINESE JOURNAL OF AERONAUTICS, 2012, 25 (01) : 137 - 142
  • [23] Thermal cycling behavior and failure mechanism of LaTi2Al9O19/YSZ thermal barrier coatings exposed to gas flame
    Xie, Xiaoyun
    Guo, Hongbo
    Gong, Shengkai
    Xu, Huibin
    SURFACE & COATINGS TECHNOLOGY, 2011, 205 (17-18) : 4291 - 4298
  • [24] Basic Performance Evaluation of Composite Perovskite Ba(Zn1/3Ta2/3)O3 Ceramic as Ceramic Coating Material for Thermal Barrier Coatings
    Cao Yupeng
    Yi, Liu
    Li Wenhui
    He, Zhang
    Ning Xianjin
    Wang Quansheng
    Li Wenbin
    RARE METAL MATERIALS AND ENGINEERING, 2023, 52 (02) : 593 - 600
  • [25] Structure, thermal and mechanical properties of mid-entropy thermal barrier ceramic (Y0.3Gd0.3Yb0.4)4Hf3O12 prepared by ultrafast high-temperature sintering
    Ye, Fuxing
    Luo, Tianyuan
    Meng, Fanwei
    Guo, Lei
    CERAMICS INTERNATIONAL, 2024, 50 (01) : 181 - 187
  • [26] High-temperature oxidation behaviours of rare earth-based pyrochlore structured A2B2O7/yttria-stabilized zirconia thermal barrier coatings
    Dharuman, N.
    Arulmozhi, M.
    Ramachandran, Sathish Kumar
    Sreedhar, Gosipathala
    MATERIALS SCIENCE AND TECHNOLOGY, 2025, 41 (01) : 66 - 74
  • [27] Influence of ceramic top coat and thermally grown oxide microstructures of air plasma sprayed Sm2SrAl2O7 thermal barrier coatings on the electrochemical impedance behavior
    Baskaran, T.
    Arya, Shashi Bhushan
    SURFACE & COATINGS TECHNOLOGY, 2018, 344 : 601 - 613
  • [28] Carbon nanotubes stabilize high temperature phase and toughen Al2O3-based thermal barrier coatings
    Ariharan, S.
    Nisar, Ambreen
    Balaji, N.
    Aruna, S. T.
    Balani, Kantesh
    COMPOSITES PART B-ENGINEERING, 2017, 124 : 76 - 87
  • [29] Evaluation of the phase stability, and mechanical and thermal properties of Ba(Sr1/3Ta2/3)O3 as a potential ceramic material for thermal barrier coatings
    Cao, Yupeng
    Wang, Quansheng
    Ning, Xianjin
    Liu, Yanbo
    CERAMICS INTERNATIONAL, 2019, 45 (10) : 12989 - 12993
  • [30] Y4Al2O9 ceramics as a novel thermal barrier coating material for high-temperature applications
    Zhou, Xin
    Xu, Zhenhua
    Fan, Xizhi
    Zhao, Sumei
    Cao, Xueqiang
    He, Limin
    MATERIALS LETTERS, 2014, 134 : 146 - 148
12345