Microstructure and mechanical properties of microwave sintered (MgCoNiCuZn)O high-entropy ceramics

被引：6

作者：

Song, Bozhen ^{[1
]}

Dong, Wenzhe ^{[1
]}

Guan, Li ^{[1
]}

Lou, Yuanzheng ^{[2
]}

Zhu, Yujie ^{[1
]}

Zhang, Jiaxin ^{[1
]}

Fan, Lei ^{[1
]}

Guo, Xiaoqin ^{[1
]}

Shao, Gang ^{[2
]}

Zhang, Rui ^{[1
]}

机构：

[1] Zhengzhou Univ Aeronaut, Sch Mat Sci & Engn, Henan Key Lab Aeronaut Mat & Applicat Technol, Zhengzhou 450046, Henan, Peoples R China

[2] Zhengzhou Univ, Sch Mat Sci & Engn, Zhengzhou 450001, Henan, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2024年 / 50卷 / 07期

基金：

中国国家自然科学基金;

关键词：

High-entropy ceramics; Single-phase; Microwave sintering; Microscopic morphology; Impedance matching; RARE-EARTH; MECHANOCHEMICAL SYNTHESIS; HYDROXYAPATITE CERAMICS; OXIDE; DENSIFICATION; STRENGTH; BEHAVIOR; ALUMINA; ALLOYS;

D O I：

10.1016/j.ceramint.2024.01.202

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：

The microstructure, reaction mechanism and mechanical properties of (MgCoNiCuZn)O high-entropy ceramics prepared by microwave sintering technology were studied. Single -phase (MgCoNiCuZn)O high-entropy ceramics can be prepared in about 1 h when the preforming pressure is 5 MPa and the temperature is higher than 900 degrees C. By analyzing the microscopic morphology and density, it can be known that the density gradually increases with the increase of temperature. When the temperature is higher than 1000 degrees C, the pores in the sample indicate the packing, agglomeration and segregation of Cu2+ atoms at the grain boundaries. When the mass of the raw material is 20 g, it exhibits a good impedance matching effect during microwave heating. The sintered (MgCoNiCuZn)O ceramic with a density of 92.87 %, a flexural strength of 290 +/- 20 MPa, an elastic modulus of 187.05 +/- 5 GPa, and a microhardness of about 7 GPa.

引用

页码：22232 / 22242

页数：11

共 50 条

[31] Microstructure and mechanical properties of CoCrFeNiZrx eutectic high-entropy alloys
Huo, Wenyi
Zhou, Hui
Fang, Feng
Xie, Zonghan
Jiang, Jianqing
MATERIALS & DESIGN, 2017, 134 : 226 - 233
[32] Processing, Microstructure and Mechanical Properties of the CrMnFeCoNi High-Entropy Alloy
Gludovatz, Bernd
George, Easo P.
Ritchie, Robert O.
JOM, 2015, 67 (10) : 2262 - 2270
[33] Microstructure and mechanical properties of FeCoCrNiNbX high-entropy alloy coatings
Fang, Qihong
Chen, Yang
Li, Jia
Liu, Yanbin
Liu, Yong
PHYSICA B-CONDENSED MATTER, 2018, 550 : 112 - 116
[34] Microstructure and mechanical properties of refractory MoNbHfZrTi high-entropy alloy
Guo, N. N.
Wang, L.
Luo, L. S.
Li, X. Z.
Su, Y. Q.
Guo, J. J.
Fu, H. Z.
MATERIALS & DESIGN, 2015, 81 : 87 - 94
[35] Microstructure and Mechanical Properties of a Refractory CoCrMoNbTi High-Entropy Alloy
Zhang, Mina
Zhou, Xianglin
Li, Jinghao
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE, 2017, 26 (08) : 3657 - 3665
[36] Microstructure and Mechanical Properties of TaNbVTiAlx Refractory High-Entropy Alloys
Xiang, Li
Guo, Wenmin
Liu, Bin
Fu, Ao
Li, Jianbo
Fang, Qihong
Liu, Yong
ENTROPY, 2020, 22 (03)
[37] Evolution of Microstructure and Mechanical Properties of the CoFeNiMnMox High-Entropy Alloys
Liu, Yongqin
Zhu, Man
Yao, Lijuan
Jian, Zengyun
CRYSTALS, 2022, 12 (08)
[38] The Microstructure and Mechanical Properties of Refractory High-Entropy Alloys with High Plasticity
Chen, Yiwen
Li, Yunkai
Cheng, Xingwang
Wu, Chao
Cheng, Bo
Xu, Ziqi
MATERIALS, 2018, 11 (02)
[39] Microstructure and mechanical properties of CoCrFeNiMo high-entropy alloy coatings
Qiu, Xingwu
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, 2020, 9 (03): : 5127 - 5133
[40] Microstructure and mechanical properties of (TiZrNbTaMo)C high-entropy ceramic
Wang, Kai
Chen, Lei
Xu, Chenguang
Zhang, Wen
Liu, Zhanguo
Wang, Yujin
Ouyang, Jiahu
Zhang, Xinghong
Fu, Yudong
Zhou, Yu
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, 2020, 39 : 99 - 105

← 1 2 3 4 5 →