Oxidation behaviors of low carbon MgO-C refractories: Roles of Ti2AlC and Ti2AlN

被引：10

作者：

Chen, Junfeng ^{[1
,3
]}

Du, Yifei ^{[1
]}

Zhang, Yu ^{[1
,3
]}

Nath, Mithun ^{[1
]}

Yan, Wen ^{[1
]}

Wei, Yaowu ^{[1
]}

Zhang, Shaowei ^{[2
,3
]}

Li, Nan ^{[1
,3
]}

机构：

[1] Wuhan Univ Sci & Technol, State Key Lab Refractories & Met, Wuhan, Peoples R China

[2] Univ Exeter, Coll Engn Math & Phys Sci, Exeter, England

[3] Wuhan Univ Sci & Technol, State Key Lab Refractories & Met, Wuhan 430081, Peoples R China

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2023年 / 106卷 / 07期

基金：

中国国家自然科学基金;

关键词：

low-carbon; MAX phase; MgO-Ti2AlC; Ti2AlN-C refractory; oxidation resistance; HIGH-TEMPERATURE OXIDATION; CORROSION-RESISTANCE; MICROSTRUCTURAL EVOLUTION; MECHANICAL-PROPERTIES; AL2O3-C REFRACTORIES; PHASE; TI3ALC2; AL; OXIDE; CRYSTALLIZATION;

D O I：

10.1111/jace.19100

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 study, Ti2AlC/Ti2AlN powders were first incorporated to fabricate low-carbon MgO-C refractories, and their oxidation behaviors were investigated. Computed tomography (CT) results indicated that stress cracks only occurred in the Ti2AlC-added sample after exposure to 1100 degrees C, and the anomalous oxidation behavior of Ti2AlC powder at 578 degrees C worsened the oxidation result at 1100 degrees C for MgO-C refractories with Ti2AlC. At 1500 degrees C, the oxidation behaviors of MgO-Ti2AlC/Ti2AlN-C samples revealed a slight mass gain due to the disintegration of Ti2AlC/Ti2AlN, and their oxidation resistances increased by 18% as compared to their counterparts. In addition, the role of Ti2AlC/Ti2AlN was elucidated. The oxidation process was comprehensive and was mainly determined by the deterioration of carbon and MAX phases. The obtained results indicated that Ti2AlN was more suitable for fabricating low-carbon MgO-C refractories as compared with Ti2AlC.

引用

页码：4411 / 4424

页数：14

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