Preparation and Thermal Conductivity of Dy2Ce2O7 Ceramic Material

被引：17
|
作者：
Zhang Hongsong [1 ,2 ]
Liao Suran [3 ]
Guan Shaokang [2 ]
机构：
[1] Henan Inst Engn, Dept Mech Engn, Zhengzhou 451191, Peoples R China
[2] Zhengzhou Univ, Sch Mat Sci & Engn, Zhengzhou 450007, Peoples R China
[3] Henan Inst Engn, Dept Mat & Chem, Zhengzhou 451191, Peoples R China
来源：
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE | 2012年 / 21卷 / 06期
关键词：
Ceramic material; Thermal barrier coatings; Thermal conductivity; Phonon scattering; THERMOPHYSICAL PROPERTIES; OXIDES; EXPANSION;
D O I：
10.1007/s11665-011-9950-z
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Dy2Ce2O7 ceramic material was prepared by solid reaction method at 1600 A degrees C for 10 h. The phase composition, microstructure, and thermal conductivity of this material were investigated. XRD results reveal that single-phase Dy2Ce2O7 with fluorite structure was synthesized successfully. Microstructure of Dy2Ce2O7 was dense and no other unreacted oxides or interphase existed in the interfaces between grains. Because of phonon scattering by oxygen vacancies and difference in atomic mass between substitutional atoms and host atoms, thermal conductivity of Dy2Ce2O7 is lower than that of 8YSZ, which implies that this ceramic can be used as novel candidate materials for thermal barrier coatings in the future.
引用
收藏
页码：1046 / 1050
页数：5
相关论文
共 50 条
  • [31] Preparation and Thermal Shock Resistance of Gd2O3 Doped La2Ce2O7 Thermal Barrier Coatings
    Gao, Lihua
    Jia, Fang
    Lu, Xiaoliang
    COATINGS, 2021, 11 (10)
  • [32] Low thermal conductivity Y2Ti2O7 as a candidate material for thermal/environmental barrier coatings
    Son Thanh Nguyen
    Nakayama, Tadachika
    Suematsu, Hisayuki
    Suzuki, Tsuneo
    Takeda, Masatoshi
    Niihara, Koichi
    CERAMICS INTERNATIONAL, 2016, 42 (09) : 11314 - 11323
  • [33] Preparation and luminescence properties of Ba2P2O7:Dy3+, Ce3+ phosphors
    Zhao, Tianyang
    Yan, Mei
    Pu, Yong
    Zhu, Dachuan
    SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, 2023, 299
  • [34] Preparation and thermophysical properties of Sm2(Ce0.3Zr0.7)2O7 ceramic
    Zhang, Hong-Song
    Li, Zhen-Jun
    Xu, Qiang
    Wang, Fu-Chi
    Liu, Ling
    ADVANCED ENGINEERING MATERIALS, 2008, 10 (1-2) : 139 - 142
  • [35] Electrical Conductivity Improvement of Nd2Ce2O7 Ceramic Co-doped with Gd2O3 and ZrO2
    Liu, Z. -G.
    Ouyang, J. -H.
    Sun, K. -N.
    FUEL CELLS, 2011, 11 (02) : 153 - 157
  • [36] Preparation and Permeation of La2Ce2O7 Membrane
    Park, Jihye
    Jung, Miewon
    JOURNAL OF THE KOREAN CERAMIC SOCIETY, 2015, 52 (04) : 269 - 272
  • [37] Rapid preparation and characterization of Dy2Zr2O7 nanocrystals
    Tong, Yuping
    Yu, Zongxue
    Lu, Lude
    Yang, Xujie
    Wang, Xin
    MATERIALS RESEARCH BULLETIN, 2008, 43 (10) : 2736 - 2741
  • [38] The glass-like thermal conductivity in ZrO2-Dy3TaO7 ceramic for promising thermal barrier coating application
    Wu, Peng
    Hu, Ming Yu
    Chong, Xiao Yu
    Feng, Jing
    APPLIED PHYSICS LETTERS, 2018, 112 (13)
  • [39] PREPARATION AND CHARACTERIZATION OF SUPERCONDUCTING DY1BA2CU3O7-X MATERIAL
    MAQSOOD, A
    MAHMOOD, MS
    SULEMAN, B
    TASNEEM, A
    JOURNAL OF MATERIALS SCIENCE LETTERS, 1989, 8 (07) : 757 - 758
  • [40] Thermal Conductivity and Expansion Coefficient of (Sm1−xYbx)2Ce2O7 Ceramics for Thermal Barrier Coatings
    Chen Xiaoge
    Zhang Hongsong
    Sun Kun
    Dang Xudan
    Zhang Haoming
    Ren Bo
    Tang An
    Journal of Materials Engineering and Performance, 2017, 26 : 6193 - 6197
12345