Microstructure evolution and high-temperature oxidation behavior of low-carbon MgO-C refractories with TiB2 addition

被引：4

作者：

Liu, Jiangao ^{[1
]}

Chen, Min ^{[1
]}

Wang, Nan ^{[1
]}

Sui, Xi ^{[1
]}

机构：

[1] Northeastern Univ, Sch Met, Key Lab Ecol Met Multimet Mineral, Shenyang 110819, Liaoning, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2024年 / 50卷 / 24期

基金：

中国国家自然科学基金;

关键词：

MgO-C refractories; Oxidation behavior; Microstructure; Phase evolution; TiB2; GRAPHITE; RESIN; PERFORMANCE; MECHANISMS; KINETICS; PHASE; AL;

D O I：

10.1016/j.ceramint.2024.10.338

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：

Combining the advantages of both containing-B compounds and containing-Ti compounds, a new TiB2 addition is proposed in MgO-C refractories. In this paper, the high-temperature oxidation behavior of low-carbon MgO-C refractories with TiB2 addition was investigated, especially the effect of microstructure and phase evolution on the high-temperature oxidation behavior was discussed. The results show that in the materials, TiB2 preferentially reacts with oxygen, forming TiCxN1-x, Mg3(BO3)2 and Mg2TiO4 ceramic phases, and catalyzing the decomposition of phenolic resin to form bamboo-like nanotubes and carbon nanospheres to bond aggregates and fill pores. Meanwhile, TiB2 also promotes the formation of regenerated MgO compact zone, hindering the diffusion of oxygen into the materials to improve the oxidation resistance. Compared with the blank control specimen and the specimen with B4C addition, the oxidation resistance increased by 243.4 % and 79.2 %, respectively.

引用

页码：54791 / 54801

页数：11

共 50 条

[1] Microstructure evaluation of MgO-C refractories with TiO2- and Al-additions [J].

Aneziris, C. G. ;

Hubalkova, J. ;

Barabas, R. .

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2007, 27 (01) :73-78

[2] Low-Carbon Magnesia-Carbon Refractory: Use of N220 Nanocarbon Black [J].

Behera, Satyananda ;

Sarkar, Ritwik .

INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY, 2014, 11 (06) :968-976

[3] The influence of B4C and MgB2 additions on the behavior of MgO-C bricks [J].

Campos, Karma S. ;

Lenz e Silva, Guilherme F. B. ;

Nunes, Eduardo H. M. ;

Vasconcelos, Wander L. .

CERAMICS INTERNATIONAL, 2012, 38 (07) :5661-5667

[4] Enhanced performance of low-carbon MgO-C refractories with nano-sized ZrO2-Al2O3 composite powder [J].

Chen, Qilong ;

Zhu, Tianbin ;

Li, Yawei ;

Cheng, Yong ;

Liao, Ning ;

Pan, Liping ;

Liang, Xiong ;

Wang, Qinghu ;

Sang, Shaobai .

CERAMICS INTERNATIONAL, 2021, 47 (14) :20178-20186

[5]

Chen Y., 2022, Bull. Chin. Ceram. Soc., V41, P2153, DOI [10.16552/j.cnki.issn1001-1625.2022.06.004, DOI 10.16552/J.CNKI.ISSN1001-1625.2022.06.004]

[6] Nano-laminated BN modified graphite reinforced unfired MgO-C refractories: Preparation, properties and strengthening mechanism [J].

Fan, Shutong ;

Deng, Chengji ;

Yu, Chao ;

Liu, Zhenglong ;

Ding, Jun .

JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, 2024, 29 :4833-4844

[7]

Fletcher B. L., 1970, Journal of the American Ceramic Society, V53, P95, DOI 10.1111/j.1151-2916.1970.tb12018.x

[8]

Funk J., 1994, Predict. Process Control Crowded Part. Suspens., P37, DOI [10.1007/978-1-4615-3118-04, DOI 10.1007/978-1-4615-3118-04]

[9]

Gao H., 2018, Chin. Refract., V52, P296, DOI [10.3969/j.issn.1001-1935.2018.04.014, DOI 10.3969/J.ISSN.1001-1935.2018.04.014]

[10] Effect of Fe addition on the microstructure and oxidation behavior of MgO-C refractory [J].

Gao, Song ;

Xu, Lei ;

Chen, Min ;

Wang, Nan .

MATERIALS CHEMISTRY AND PHYSICS, 2019, 238

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