Preparation, thermophysical performances of Ca3Ln3Ti7Ta2O26.5 (Ln = Yb and Y) oxides for thermal barrier coating applications

被引：3

作者：

Zhang Hongsong ^{[1
]}

Yang Shusen ^{[2
]}

Tong Yuping ^{[3
]}

Yang Xianfeng ^{[1
,4
]}

Sang Weiwei ^{[1
]}

Zhao Yongtao ^{[1
]}

机构：

[1] Henan Univ Engn, Dept Mech Engn, Zhengzhou 451191, Peoples R China

[2] Railway Police Coll, Rail Transit Secur Dept, Zhengzhou, Henan, Peoples R China

[3] North China Univ Water Sources & Elect Powder, Sch Mat Sci & Engn, Zhengzhou 450011, Peoples R China

[4] Changsha Univ Sci & Technol, Coll Mat Sci & Engn, Changsha 410014, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2020年 / 46卷 / 05期

关键词：

Rare earth titanate; Thermal-physical performances; Pyrochlore complex oxides; PYROCHLORE-TYPE OXIDES; DIELECTRIC-PROPERTIES; PHYSICAL-PROPERTIES; CARBON NANOTUBES; SM; CONDUCTIVITY; GD; ND; LA; DIFFRACTION;

D O I：

10.1016/j.ceramint.2019.11.136

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：

In this manuscript, the Ca(3)Ln(3)Ti(7)Ta(2)O(26)(.5) (Ln = Y and Yb) oxides were prepared by employing a high-temperature solid-phase reaction method at 1773 K for 10 h. The phase compositions and thermal-physical performances were studied. The results show that the synthesized oxides are of a single pyrochlore-type lattice, the thermal conductivity of Ca3Y3Ti7Ta2O26.5 is larger than that of Ca3Yb3Ti7Ta2O26.5, and the coefficient of thermal expansion of Ca3Yb3Ti7Ta2O26.5 is higher than that of Ca3Y3Ti7Ta2O26.5. The thermal-physical properties match well with the requirements for thermal barrier coatings.

引用

页码：6531 / 6536

页数：6

共 50 条

[1] Synthesis and thermophysical performances of complex Ca3Ln3Ti7Ta2O26.5 (Ln = Dy and Er) oxides
Zhang Hongsong
Tong Yuping
Yang Xianfeng
Sang Weiwei
Zhang Haoming
Zhao Yongtao
CERAMICS INTERNATIONAL, 2020, 46 (03) : 2862 - 2867
[2] Thermophysical properties of Ca3Ln3Ce7Ta2O26.5 (Ln=Gd and Yb) oxides for thermal barrier coating applications
Chen Xiaoge
Lu Kui
Zhao Liming
Zhang Hongsong
Zhang Haoming
Yan Xianfeng
CERAMICS INTERNATIONAL, 2020, 46 (09) : 14273 - 14277
[3] Heat conductivity and expansion property of Ca3Ln3Ti7Ta2O26.5 (Ln = Nd, Gd) sosoloids
Zhang Haoming
Lu Chunxiang
Wang Fei
Zhao Yongde
Lu Kui
Zhang Hongsong
Tang An
CERAMICS INTERNATIONAL, 2018, 44 (13) : 16076 - 16078
[4] Thermal-physical performances of novel pyrochlore-type Ca3Ln3Ce7Ta2O26.5(Ln = Nd and Dy) oxides
Zhang Hongsong
Feng Yan
Tong Yuping
Sang Weiwei
Zhao Yongtao
Yan Xianfeng
Tang An
CERAMICS INTERNATIONAL, 2020, 46 (08) : 11416 - 11420
[5] Thermal conductivity and expansion coefficient of Ln2LaTaO7 (Ln=Er and Yb) oxides for thermal barrier coating applications
Chen Xiaoge
Tang An
Zhang Hongsong
Liu Yanxu
Zhang Haoming
Zhao Yongde
CERAMICS INTERNATIONAL, 2016, 42 (12) : 13491 - 13496
[6] Investigation about thermophysical properties of Ln2Ce2O7 (Ln = Sm, Er and Yb) oxides for thermal barrier coatings
Zhang Hongsong
Lv Jianguo
Li Gang
Zhang Zheng
Wang Xinli
MATERIALS RESEARCH BULLETIN, 2012, 47 (12) : 4181 - 4186
[7] Thermophysical properties of Ln3Ce7Ta2O23.5 (Ln = Nd and La) composite oxides
Chen Xiaoge
Zhang Hongsong
Tong Yuping
Yang Xianfeng
Sang Weiwei
Zhang Haoming
Zhao Yongtao
CERAMICS INTERNATIONAL, 2020, 46 (07) : 8903 - 8909
[8] Synthesis and properties of complex oxides, Ln(2)Mn(2/3)Ta(4/3)O(7) phases (Ln equals rare earth or Y)
Chen, G
Takenoshita, H
Kamegashira, N
JOURNAL OF ALLOYS AND COMPOUNDS, 1996, 238 (1-2) : 28 - 34
[9] Structure and thermal properties of ZrO2-Ta2O5-Y2O3-Ln2O3 (Ln = Nd, Sm or Gd) ceramics for thermal barrier coatings
Song, Xiwen
Xie, Min
An, Shengli
Hao, Xihong
Mu, Rende
SCRIPTA MATERIALIA, 2010, 62 (11) : 879 - 882
[10] Thermophysical properties of novel pyrochlore-type Ca3RE3Ti7Ta2O26.5 (RE = La, Sm) oxides
Zhang Hongsong
Yang Shusen
Lu Chunxiang
Chen Xioage
Ren Bo
Tang An
Lu Kui
CERAMICS INTERNATIONAL, 2018, 44 (09) : 10994 - 10996

← 1 2 3 4 5 →