Abstract
The enhanced properties of refractory castables are usually designed by the addition of multifunctional mineralizers and fine powders to satisfy the requirements of steelmaking industry. In this work, the effects of fine composite powders addition on properties of corundum-spinel refractory castables were investigated. Phase composition, microstructure, physical and mechanical properties of corundum-spinel refractory castables with different contents of fine composite powders were characterized. The results showed that the smaller spinel in the fine composite powders improved the sintering activity of the spinel particles, which had an influence on the morphology and the distribution of CA6 for the limited space. As the consequence of this, the cracks caused by in situ CA6 generation decreased and the firm link between particles was gained, finally the strength of castables containing fine composite powders improved.
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References
A.H. De Aza, P. Pena, S. de Aza, Ternary system Al2O3–MgO–CaO: I, Primary phase field of crystallization of spinel in the subsystem MgAl2O4–CaAl4O7–CaO–MgO. J. Am. Ceram. Soc. 82, 2193–2203 (1999)
M.A.L. Braulio, G.G. Morbioli, D.H. Milanez, V.C. Pandolfelli, Calcium aluminate cement source evaluation for Al2O3–MgO refractory castables. Ceram. Int. 37, 215–221 (2011)
J.H. Chen, H.Y. Chen, W.J. Mi, Z. Cao, B. Li, C.J. Liang, Substitution of Ba for Ca in the structure of CaAl12O19. J. Am. Ceram. Soc. 100, 413–418 (2017)
X.L. Yin, M. Chen, N. Wang, L. Xu, Improvement of densification and mechanical properties of MgAl2O4–CaAl4O7–CaAl12O19 composite by addition of MnO. Ceram. Int. 43, 4706–4711 (2017)
D.L. Xu, S.Y. Wang, X.H. Zhang, Current state and prospects for 12th five-year plan of China’s refractories industry, in Proceedings of 1st China International Refractory Production and Application Conference (Guangzhou, China, 2011), pp. 1–9
W.J. Yuan, H. Tang, H. Shang, J. Li, C.J. Deng, H.X. Zhu, Effects of TiO2 addition on kinetics of in situ spinel formation and properties of alumina-magnesia refractory castables. J. Ceram. Sci. Technol. 8, 121–128 (2017)
L. Liu, M. Chen, L. Xu, X.L. Yin, W.J. Sun, Effect of BaO addition on densification and mechanical properties of Al2O3–MgO–CaO refractories. Metals 84, 1–9 (2016)
I.D. Giovannelli Maizo, A.P. Luz, C. Pagliosa, V.C. Pandolfelli, Boron sources as sintering additives for alumina-based refractory castables. Ceram. Int. 43, 10207–10216 (2017)
J.H. Chen, H.Y. Chen, W.J. Mi, Z. Cao, B. Li, C.J. Liang, Substitution of Ba for Ca in the structure of CaAl12O19. J. Am. Ceram. Soc. 100, 413–418 (2017)
W.J. Yuan, C.J. Deng, H.X. Zhu, Effects of TiO2 addition on the expansion behavior of alumina-magnesia refractory castables. Mater. Chem. Phys. 162, 724–733 (2015)
Y.Q. Li, Y.W. Li, S.L. Jin, N. Li, Synthesis and its microstructure of calcium hexaluminate material by reaction sintering. Refract. Naihuo Cailiao 38, 318–323 (2004)
Acknowledgements
The authors are thankful to National Natural Science Foundation of China (NSFC No. 51502214).
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Tang, H., Jiang, N., Yuan, W., Deng, C., Zhu, H. (2018). Effects of Fine Composite Powders Addition on Properties of Corundum-Spinel Refractory Castables. In: Han, Y. (eds) Advanced Functional Materials. CMC 2017. Springer, Singapore. https://doi.org/10.1007/978-981-13-0110-0_61
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DOI: https://doi.org/10.1007/978-981-13-0110-0_61
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