Effect of texture on oxidation resistance of Ti3AlC2

被引：47

作者：

Xu, Ludi ^{[1
,2
]}

Zhu, Degui ^{[1
]}

Liu, Yunlong ^{[1
]}

Suzuki, Tohru S. ^{[3
]}

Kim, Byung-Nam ^{[3
]}

Sakka, Yoshio ^{[3
]}

Grasso, Salvatore ^{[1
]}

Hu, Chunfeng ^{[1
]}

机构：

[1] Southwest Jiaotong Univ, Sch Mat Sci & Engn, Key Lab Adv Technol Mat, Minist Educ, Chengdu 610031, Sichuan, Peoples R China

[2] Sichuan Aerosp Changzheng Equipment Mfg Co Ltd, Chengdu 610100, Sichuan, Peoples R China

[3] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050047, Japan

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2018年 / 38卷 / 10期

关键词：

Ti3AlC2; Texture microstructure; Oxidation behavior; Oxidation mechanisms; TRANSMISSION ELECTRON-MICROSCOPY; STRONG MAGNETIC-FIELD; 1100; DEGREES-C; MAX PHASES; CERAMICS; MICROSTRUCTURE; CARBIDE; TI3SIC2; NB4ALC3; FAMILY;

D O I：

10.1016/j.jeurceramsoc.2018.03.009

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：

Oxidation resistance of textured Ti3AlC2 ceramics was measured in the temperature range 1273-1573 K It was found that the oxidation was markedly anisotropic and the samples exhibited a better oxidation resistance when tested along a direction transverse to the c-axis. This behavior was attributed to the rapid diffusion of A1 within its basal planes to form a passivating Al2O3 scale and it respected Ellingham diagrams. The scales formed had different compositions depending on the testing direction, this response was clearly resulting from the crystal lographic orientation. Even at 1473 K after 20 h exposure, the samples tested in a direction transverse to the c-axis showed a reduced weight gain which was 45 times lower than one seen on a basal plane.

引用

页码：3417 / 3423

页数：7

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