Improved thermal shock performance of Al2O3-C refractories due to nanoscaled additives

被引：153

作者：

Roungos, V. ^{[1
]}

Aneziris, C. G. ^{[1
]}

机构：

[1] Tech Univ Bergakad Freiberg, Dept Ceram Glass & Construct Mat, D-09596 Freiberg, Germany

来源：

CERAMICS INTERNATIONAL | 2012年 / 38卷 / 02期

关键词：

Nanomaterials; Alumina; Graphite; Refractories; GROWTH; MECHANISM;

D O I：

10.1016/j.ceramint.2011.08.011

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：

Carbon bonded alumina refractories with approximately 30 wt.-% residual carbon after coking are widely used as functional components such as submerged entry nozzles, monobloc stoppers and ladle shrouds in steel casting operations. Compositions with less residual carbon after coking based on nanoscaled magnesium aluminate spinel (MgAl2O4), alumina nanosheets (alpha-Al2O3) and carbon nanotubes (CNTs) either as single additives or combinations have been investigated according to their physical, mechanical and thermo-mechanical properties. The combination of nanoscaled powders based on carbon nanotubes and alumina nanosheets lead to superior thermal shock performance with approximately 30% less residual carbon in comparison to commercial available material compositions. (C) 2011 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：919 / 927

页数：9

共 33 条

[1] Functional refractory material design for advanced thermal shock performance due to titania additions [J].

Aneziris, C. G. ;

Klippel, U. ;

Schaerfl, W. ;

Stein, V. ;

Li, Yawei .

INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY, 2007, 4 (06) :481-489

[2] 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

[3]

Aneziris C.G., 2003, Interceram, P22

[4]

Aneziris C. G., 2009, UN INT TECHN C REFR, P8

[5]

Arasu V., 2009, UN INT TECHN C REFR, P24

[6] Spinel-containing alumina-based refractory castables [J].

Braulio, M. A. L. ;

Rigaud, M. ;

Buhr, A. ;

Parr, C. ;

Pandolfelli, V. C. .

CERAMICS INTERNATIONAL, 2011, 37 (06) :1705-1724

[7]

Guoqi L., 2001, P UN INT TECHN C REF, P1412

[8] Alumina/silicon carbide composites fabricated via in situ synthesis of nano-sized SiC particles [J].

Gustafsson, S. ;

Falk, L. K. L. ;

Liden, E. ;

Carlstrom, E. .

CERAMICS INTERNATIONAL, 2009, 35 (03) :1293-1296

[9]

Haren K., 2007, P UN INT TECHN C REF, P358

[10]

Hattanda H., 2007, P UN INT TECHN C REF, P204

← 1 2 3 4 →