Oxidation behavior of (Hf0.2Zr0.2Ta0.2Nb0.2Ti0.2)C high-entropy ceramics at 1073-1473 K in air

被引：189

作者：

Ye, Beilin ^{[1
]}

Wen, Tongqi ^{[2
]}

Liu, Da ^{[1
]}

Chu, Yanhui ^{[1
]}

机构：

[1] South China Univ Technol, Sch Mat Sci & Engn, Guangzhou 510641, Guangdong, Peoples R China

[2] Northwestern Polytech Univ, Sch Nat & Appl Sci, MOE Key Lab Mat Phys & Chem Extraordinary Condit, Xian 710072, Shaanxi, Peoples R China

来源：

CORROSION SCIENCE | 2019年 / 153卷

基金：

中国国家自然科学基金;

关键词：

Ultra-high temperature ceramics; Solid solutions; High-entropy metal carbides; Oxidation behavior; Parabolic rate law;

D O I：

10.1016/j.corsci.2019.04.001

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The oxidation behavior of (Hf0.2Zr0.2Ta0.2Nb0.2Ti0.2)C high-entropy ceramics (HHC-1) was studied at 1073-1473 K in air for the first time. The results showed that the oxidation behavior of HHC-1 samples followed a parabolic rate law, in which the oxidation rate first increased with the temperatures increasing from 1073 to 1273 K and then decreased with the temperatures increasing from 1273 to 1473 K. In addition, except for the dense oxide layer formed at 1173 K, all the other oxide layers exhibit the laminated structure. These interesting results resulted from the formation of the different oxidation products.

引用

页码：327 / 332

页数：6