Nanocrystalline construction in ultra-high temperature thermal barrier coatings using as-synthesized nanostructured La2(Zr0.75Ce0.25)2O7 feedstocks

被引：5
|
作者：
Zhou, Feifei [1 ,2 ,3 ]
Zhang, Xiaofeng [2 ,3 ]
Liu, Min [2 ,3 ]
Wang, Yaming [1 ]
Wang, You [1 ]
Deng, Chunming [2 ,3 ]
机构：
[1] Harbin Inst Technol, Dept Mat Sci, Sch Mat Sci & Engn, Harbin 150001, Peoples R China
[2] Guangdong Inst New Mat, Natl Engn Lab Modern Mat Surface Engn Technol, Guangzhou 510651, Peoples R China
[3] Guangdong Inst New Mat, Key Lab Guangdong Modern Surface Engn Technol, Guangzhou 510651, Peoples R China
来源：
CERAMICS INTERNATIONAL | 2020年 / 46卷 / 05期
基金：
中国国家自然科学基金;
关键词：
Nano-grains construction; Ultra-high temperature thermal barrier coatings; La-2(Zr0.75Ce0.25)(2)O-7; Plasma spraying; BONDING STRENGTH; CONDUCTIVITY;
D O I：
10.1016/j.ceramint.2019.11.093
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：
Nanostructured rare earth zirconates are considered to be the most promising top materials for ultra-high temperature thermal barrier coatings. In this communication, the ultra-high temperature thermal barrier coatings using as-synthesized nanostructured La-2(Zr0.75Ce0.25)(2)O-7 feedstocks were deposited and the study is firstly focused on the nano-grains construction in nanostructured La-2(Zr0.75Ce0.25)(2)O-7 coatings with the aid of scanning electron microscopy (SEM) and transmission electron microscopy (TEM) analysis. Results show that the nanograins in as-sprayed La-2(Zr0.75Ce0.25)(2)O-7 coatings comprise non-molten nanostructured feedstocks and columnar nanocrystalline with [222] preferential orientation in splats.
引用
收藏
页码：6965 / 6968
页数：4
相关论文
共 32 条
  • [1] Nanomechanical characterization of nanostructured La2(Zr0.75Ce0.25)2O7 thermal barrier coatings by nanoindentation
    Zhou, F. F.
    Xu, L. P.
    Deng, C. M.
    Song, J. B.
    Deng, C. G.
    Wang, Y.
    Liu, M.
    APPLIED SURFACE SCIENCE, 2020, 505
  • [2] In-situ synthesized nanostructured t-ZrO2/La2(Zr0.75Ce0.25)2O7 composite thermal barrier coatings
    Zhou, Feifei
    Guo, Donghui
    Zhang, Xiaofeng
    Xu, Baosheng
    Wang, Yiguang
    Liu, Min
    Wang, You
    CERAMICS INTERNATIONAL, 2022, 48 (20) : 31054 - 31059
  • [3] Indentation creep characterization of plasma-sprayed nanostructured La2(Zr0.75Ce0.25)2O7 thermal barrier coatings
    Guo, Donghui
    Zhou, Feifei
    Xu, Baosheng
    Wang, You
    CERAMICS INTERNATIONAL, 2023, 49 (23) : 38382 - 38385
  • [4] Bonding strength and thermal conductivity of novel nanostructured La2(Zr0.75Ce0.25)2O7/8YSZ coatings
    Zhou, Feifei
    Wang, You
    Liu, Min
    Deng, Chunming
    Li, Yuting
    Wang, Yaming
    Zhang, Xiaofeng
    APPLIED SURFACE SCIENCE, 2019, 481 : 460 - 465
  • [5] Structure evolution, thermal properties and sintering resistance of promising thermal barrier coating material La2(Zr0.75Ce0.25)2O7
    Yang, Pan
    An, Yulong
    Zhao, Di
    Li, Yuhong
    Zhou, Huidi
    Chen, Jianmin
    CERAMICS INTERNATIONAL, 2020, 46 (13) : 20652 - 20663
  • [6] High Temperature Aging Behavior of Plasma Sprayed La2(Zr,Ce)2O7 Coatings
    Qiong, Wu
    Peng Haoran
    Ji Xiaojuan
    Xin, Zhang
    Jie, Shen
    Ren Xianjing
    RARE METAL MATERIALS AND ENGINEERING, 2015, 44 : 336 - 339
  • [7] Thermal shock resistance and failure analysis of La2(Zr0.75Ce0.25)2O7-based TBCs produced by atmospheric plasma spraying
    Yang, Pan
    Yang, Dongyan
    Hao, Enkang
    An, Yulong
    Li, Yuhong
    Wang, Zhiguang
    SURFACE & COATINGS TECHNOLOGY, 2021, 409
  • [8] THERMAL SHOCK RESISTANCE OF La2(Zr0.7Ce0.3)2O7 THERMAL BARRIER COATING PREPARED BY ATMOSPHERIC PLASMA SPRAYING
    Xiang Jianying
    Chen Shuhai
    Huang Jihua
    Zhao Xingke
    Zhang Hua
    ACTA METALLURGICA SINICA, 2012, 48 (08) : 965 - 970
  • [9] High-entropy (La0.2Nd0.2Sm0.2Gd0.2Yb0.2)2(Zr0.75Ce0.25)2O7 thermal barrier coating material with significantly enhanced fracture toughness
    Guo, Donghui
    Zhou, Feifei
    Xu, Baosheng
    Wang, Yiguang
    Wang, You
    CHINESE JOURNAL OF AERONAUTICS, 2023, 36 (04) : 556 - 564
  • [10] Synthesis and characterization of high-entropy (La0.2Nd0.2Sm0.2Gd0.2Yb0.2)2(Zr0.75Ce0.25)2O7 nanopowders
    Guo, Donghui
    Zhou, Feifei
    Xu, Baosheng
    Wang, Yiguang
    Wang, You
    CERAMICS INTERNATIONAL, 2022, 48 (21) : 32532 - 32535
1234