.png)
.png)
Email this article 
PREPARATION AND PROPERTIES OF LOW-CARBON AL2O3-ZRO2-SIC-C COMPOSITE REFRACTORIES CON¬TAINING LAALUO18 CERAMIC PHASE
https://doi.org/10.17073/1683-4518-2015-1-24-31
Abstract
Low-carbon alumina-zirconia-silicon carbide-carbon composite refractories Al2O3-ZrO2-SiC-C (AZSC refractories) which contain lanthanum hexaaluminate (LaAl11O18) ceramic phase were prepared by the in-situ reaction sintering process. Effects of raw materials ratio, sintering temperature and La2O3 addition on the phase composition, microstructure, shrinkage ratio, apparent porosity, bulk density and cold crushing strength of the AZSC refractories were inves-tigated. The AZSC refractories with good properties could be prepared at 1723 and 1773 K for 3h. During the sintering process, t-ZrO2, c-ZrO2 and β-SiC formed due to an in-situ reaction between ZrSiO4 and C. La2O3 reacted with Al2O3 to produce LaAl11O18, which was platelike and formed on the Al2O3 matrix. The enhancement of properties were attributed to the formations of t-ZrO2, c-ZrO2, β-SiC and LaAl11O18 in the AZSC refractories. Ill. 7. Ref. 21. Tab. 2.
About the Authors
Beiyue MaChina
Ying Li
China
Qiang Zhu
Australia
Guoqiang Liu
China
Jingkun Yu
China
References
1. Roungos, V Improved thermal shock performance of AI2O3-C refractories due to nanoscaled additives / К Roungos, C. G. Aneziris // Ceram. Inter. — 2012. — Vol. 38, №2. — Р. 919-927.
2. Zhu, B. Q. Effect of ceramic bonding phases on the thermo-mechanical properties of AhO3-C refractories / B. Q. Zhu, Y. N. Zhu, X. C. Li, F. Zhao // Ceram. Inter. — 2013. — Vol. 39, № 6. — Р. 6069-6076.
3. Wang, Q. H. Strengthening mechanism of grapheme oxide nanosheets for AhO3-C refractories / Q. H. Wang, Y. W. Li, M. Luo [et al.] // Ceram. Inter. — 2014. — Vol. 40, №1. — Р. 163-172.
4. Gokce, A. S. The effect of antioxidants on the oxidation behaviour of magnesia-carbon refractory bricks / A. S. Gokce, C. Gurcan, S. Ozgen, S. Aydin // Ceram. Inter. — 2014. — Vol. 34, №2. — Р. 323-330.
5. Fan, H. B. Microstructures and mechanical properties of Al2O3-C refractories with silicon additive using different carbon sources / H. B. Fan, Y. W. Li, B. Sang // Mater. Sci. Eng. A. — 2011. — Vol. 528, №7/8. — Р. 3177-3185.
6. Li, L. Formation of ZrB2 in MgO-C composite materials using in-situ synthesis method / L. Li, Y. R. Hong, J. L. Sun [et al.] // J. Iron Steel Res. Int. — 2006. — Vol. 13, №1.— Р. 70-74.
7. Ma, B. Y. Synthesis of ZrO2-SiC composite powder and effect of its addition on properties of AhO3-C refractories / B. Y. Ma, J. K. Yu // T. Nonferr. Metal. Soc. — 2007. — Vol. 17, № 5. — Р. 996-1000.
8. Ma, B. Y. Synthesis of Al2O3-SiC composite and its effect on the properties of low-carbon MgO-C refractories / B. Y. Ma, Q. Zhu, Y. Sun [et al.] // J. Mater. Sci. Technol. — 2010. — Vol. 26, №8. — Р.715-720.
9. Basu, S. Nozzle clogging behaviour of Ti-bearing Al-killed ultra low carbon steel / S. Basu, S. K. Choudhary, N. U. Girasen // ISIJ Int. — 2004. — Vol. 44, №10. — Р. 1653-1660.
10. Li, H. X. Current situation and development of refractories for clean steel production / H. X. Li // 1st China International Refractory Production and Application Conference, Guangzhou, China. — 2011. — Р. 193-200.
11. Luo, M. In situ formation of carbon nanotubes and ceramic whiskers in Al2O3-C refractories with addition of Ni-catalyzed phenolic resin / M. Luo, Y. W. Li, S. B. Sang [et al.] // Mater. Sci. Eng. A. — 2012. — Vol. 558. — P. 533-542.
12. Zhong, X. C. Refractory oxide-nonoxide composites / X. C. Zhong // Amer. Ceram. Soc. Bull. — 2007. — Vol. 86, №9. — Р. 62-66.
13. Guo, R. In situ formation of LaAlnO18 rodlike particles in ZTA ceramics and effect on the mechanical properties / R. Guo, D. Guo, Y. Chen [et al.] // Ceram. Inter. — 2002. — Vol. 28, № 7. — Р. 699-704.
14. Jin, X. H. Microstructure and mechanical performances of ZTA/LaAlnO^ composite prepared by a heterogeneous precipitation method / X. H. Jin, L. Gao // Mater. Sci. Eng. A. — 2003. — Vol. 360, № 1/2. — Р. 275-279.
15. Tripathi, H. S. Synthesis and densification behaviour of magnesium aluminate spinel: Effect of Dy2O3 / H. S. Tripathi, S. Singla, A. Ghosh // Ceram. Inter. — 2009. — Vol. 35, № 6. — Р. 2541-2544.
16. Palmero, P. Creep behaviour of alumina/YAG composites prepared by different sintering routes / P. Palmero, G. Fantozzi, F. Lomello [et al.] // Ceram. Inter. — 2012. — Vol. 338, № 1. — Р. 433-441.
17. He,X.L. Study of rare-earth oxide sintering additive systems for Spark Plasma Sintering AlN ceramics / X. L. He, F. Ye, H. J. Zhang, L. M. Liu // Mater. Sci. Eng. A. — 2010. — Vol. 527, № 20. — Р. 5268-5272.
18. Ma, B. Y. Preparation and sintering properties of zirconia-mullite-corundum composites using fly ash and zircon / B. Y. Ma, Y. Li, S. G. Cui, Y. C. Zhai // T. Nonferr. Metal. Soc. — 2010. — Vol. 20, № 12. — Р. 2331-2335.
19. Ma, B. Y. Phase composition of SiC-ZrO2 composite materials synthesized from zircon doped with La2O3 / B. Y. Ma, J. K. Yu // J. Rare Earth. — 2009. — Vol. 27, №5. — Р. 806-810.
20. Liang, Y. J. Handbook of thermodynamic data in inorganic (in Chin.) ; 2nd ed. / Y. J. Liang, Y. C. Che. — Shenyang : Northeastern University Press, 1994.
21. Chen, Z. Y. Chemical Thermodynamics of Refractories (in Chin.) ; 1st ed. / Z. Y. Chen. — Beijing : Metallurgical Industry Press, 2005.
Supplementary files
For citation: Ma B., Li Y., Zhu Q., Liu G., Yu J. PREPARATION AND PROPERTIES OF LOW-CARBON AL2O3-ZRO2-SIC-C COMPOSITE REFRACTORIES CON¬TAINING LAALUO18 CERAMIC PHASE. NOVYE OGNEUPORY (NEW REFRACTORIES). 2015;(1):24-31. https://doi.org/10.17073/1683-4518-2015-1-24-31
Refbacks
- There are currently no refbacks.