A five-component entropy-stabilized fluorite oxide

被引：348

作者：

Chen, Kepi ^{[1
]}

Pei, Xintong ^{[1
]}

Tang, Lei ^{[1
]}

Cheng, Haoran ^{[1
]}

Li, Zemin ^{[1
]}

Li, Cuiwei ^{[2
]}

Zhang, Xiaowen ^{[3
]}

An, Linan ^{[4
]}

机构：

[1] North China Elect Power Univ, Sch Energy Power & Mech Engn, Beijing 102206, Peoples R China

[2] Beijing Jiaotong Univ, Sch Mech Elect & Control Engn, Beijing 100044, Peoples R China

[3] Tsinghua Univ, Sch Mat Sci & Engn, Beijing 10083, Peoples R China

[4] Univ Cent Florida, Dept Mat Sci & Engn, Orlando, FL 32816 USA

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2018年 / 38卷 / 11期

关键词：

Entropy-stabilization; Fluorite oxide; Phase transition; Thermal conductivity; RARE-EARTH; ALLOYS;

D O I：

10.1016/j.jeurceramsoc.2018.04.063

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 paper, we report a new entropy-stabilized fluorite oxide, formed by solid-state reacting the equimolar mixture of CeO2, ZrO2, HfO2, TiO2 and SnO2 at 1500 degrees C. We demonstrated that the oxide is truly entropy stabilized by showing that the oxide was transferred to a multiphase state when annealed at lower temperatures, and the transition between the low-temperature multiphase and high-temperature single-phase states is reversible. Room-temperature thermal conductivity of the fluorite oxide was measured to be 1.28 Wm(-1) K-1. The value is only half of that for 7 wt% yttria-stabilized zirconia, suggesting the material could be useful for thermal insulation applications.

引用

页码：4161 / 4164

页数：4

共 15 条

[1] Synthesis and microstructure of the (Co,Cr,Fe,Mn,Ni)3O4 high entropy oxide characterized by spinel structure [J].

Dabrowa, Juliusz ;

Stygar, Miroslaw ;

Mikula, Andrzej ;

Knapik, Arkadiusz ;

Mroczka, Krzysztof ;

Tejchman, Waldemar ;

Danielewski, Marek ;

Martin, Manfred .

MATERIALS LETTERS, 2018, 216 :32-36

[2] Multicomponent equiatomic rare earth oxides [J].

Djenadic, Ruzica ;

Sarkar, Abhishek ;

Clemens, Oliver ;

Loho, Christoph ;

Botros, Miriam ;

Chakravadhanula, Venkata S. K. ;

Kuebel, Christian ;

Bhattacharya, Subramshu S. ;

Gandhif, Ashutosh S. ;

Hahn, Horst .

MATERIALS RESEARCH LETTERS, 2017, 5 (02) :102-109

[3] High-Entropy Metal Diborides: A New Class of High-Entropy Materials and a New Type of Ultrahigh Temperature Ceramics [J].

Gild, Joshua ;

Zhang, Yuanyao ;

Harrington, Tyler ;

Jiang, Sicong ;

Hu, Tao ;

Quinn, Matthew C. ;

Mellor, William M. ;

Zhou, Naixie ;

Vecchio, Kenneth ;

Luo, Jian .

SCIENTIFIC REPORTS, 2016, 6

[4] A fracture-resistant high-entropy alloy for cryogenic applications [J].

Gludovatz, Bernd ;

Hohenwarter, Anton ;

Catoor, Dhiraj ;

Chang, Edwin H. ;

George, Easo P. ;

Ritchie, Robert O. .

SCIENCE, 2014, 345 (6201) :1153-1158

[5] A new class of high-entropy perovskite oxides [J].

Jiang, Sicong ;

Hu, Tao ;

Gild, Joshua ;

Zhou, Naixie ;

Nie, Jiuyuan ;

Qin, Mingde ;

Harrington, Tyler ;

Vecchio, Kenneth ;

Luo, Jian .

SCRIPTA MATERIALIA, 2018, 142 :116-120

[6] Metastable high-entropy dual-phase alloys overcome the strength-ductility trade-off [J].

Li, Zhiming ;

Pradeep, Konda Gokuldoss ;

Deng, Yun ;

Raabe, Dierk ;

Tasan, Cemal Cem .

NATURE, 2016, 534 (7606) :227-+

[7] Ab initio calculated binodal and spinodal of cubic Ti1-xAlxN - art. no. 071922 [J].

Mayrhofer, PH ;

Music, D ;

Schneider, JM .

APPLIED PHYSICS LETTERS, 2006, 88 (07)

[8] A critical review of high entropy alloys and related concepts [J].

Miracle, D. B. ;

Senkov, O. N. .

ACTA MATERIALIA, 2017, 122 :448-511

[9] Entropy-stabilized oxides [J].

Rost, Christina M. ;

Sachet, Edward ;

Borman, Trent ;

Moballegh, Ali ;

Dickey, Elizabeth C. ;

Hou, Dong ;

Jones, Jacob L. ;

Curtarolo, Stefano ;

Maria, Jon-Paul .

NATURE COMMUNICATIONS, 2015, 6

[10] Rare earth and transition metal based entropy stabilised perovskite type oxides [J].

Sarkar, Abhishek ;

Djenadic, Ruzica ;

Wang, Di ;

Hein, Christina ;

Kautenburger, Ralf ;

Clemens, Oliver ;

Hahn, Horst .

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2018, 38 (05) :2318-2327

← 1 2 →