Spinel: In-situ versus Preformed – Clearing the Myth
1 Almatis GmbH, 60439 Frankfurt, Germany
2 voestalpine Stahl GmbH, 4020 Linz, Austria
Revision
Volume 2, Issue 2, Pages 87-93
Abstract
The paper discusses the difference in the formulation concepts of alumina-spinel (spinel containing) and alumina-magnesia (spinel forming) castables and the influence on their physical properties. The individual property profile will be discussed with regard to the requirements on refractory lining materials for the different zones of a steel ladle.
Keywords
rnspinel, castables, steel ladlernrn
References
[1] Mori, J.; Sakaguchi, M.; Yoshimura, S.; Oguchi, M.; Kawakami, T.: Suppression of slag penetration on spinel added alumina castables for steel ladle. Taikabutsu 10 (1988) 40
[2] Nagasoe, A.; Tsurumoto, S.I.; Kitamura, A.: Refractory characteristics of spinels with various MgO contents. Taikabutsu Overseas, 11 (1991) [3] 20–28
[3] Yamamura, T.; Kubota,Y.; Kaneshige, T.; Nanba, M.: Effect of spinel clinker composition on properties of alumina-spinel castable. Taikabutsu Overseas 13 (1992) [2] 39–45
[4] Kriechbaum, G.W.; Gnauck, V.; Routschka, G.: The influence of SiO2 and spinel on the hot properties of high-alumina low-cement castables. 37th International Colloquium on Refractories, Aachen 1994
[5] Ko, Y.-C.: Effect of microsilica addition on the properties of alumina-spinel castables. Interceram 51 (2002) [6] 388–392
[6] Buhr, A.: Refractories for steel secondary metallurgy. CN-Refractories 6 (1999) [3] 19–30
[7] Alasaarela, E.; Eitel, W.: How infinite is endless lining of ladles? 34th International Colloquium on Refractories, Aachen 1991
[8] Racher, R. P.; McConnell, R. W. ; Buhr, A.: Magnesium aluminate spinel raw materials for high performance refractories for steel ladles. 43rd Conference of Metallurgists; Hamilton, Ontario, Canada 2004
[9] Bartha, P.: Spinell und spinellhaltige feuerfeste Werkstoffe. Berichtsband Feuerfesttechnik, Verlag Stahleisen mbH (1984) 113–133
[10] Braulio, M.A.L.; Milanez, D.H.; Sako, E.Y.; Bittencourt L.R.M.; Pandolfelli, V.C.: Expansion behavior of cement bonded alumina-magnesia refractory castables. Am. Ceram. Soc. Bull. 86 (2007) [12] 9201–9206
[11] Braulio, M.A.L.; Bittencourt, L.R.M.; Porier J.; Pandolfelli, V.C.: Micosilica effects on cement bonded alumina-magnesia refractory castables. J. Techn. Ass. Refr. Japan 28 (2008) [3] 180–184
[12] Braulio, M.A.L.; Castro, J.F.R.; Pagliosa, C.; Bittencourt, L.R.M.; Pandolfelli, V.C.: From macro to nanomagnesia: Designing the in-situ spinel expansion. J. Am. Ceram. Soc. 91 (2008) [9] 3090–3093
[13] Braulio, M.A.L.; Bittencourt, L.R.M.; Pandolfelli, V.C.: Selection of binders for in-situ spinel refractory castables. J. Eur. Ceram. Soc. 28 (2009) [13] 2727–2735
[14] Braulio, M.A.L.; Brant, P.O.; Bittencourt, L.R.M.; Pandolfelli, V.C.: Microsilica or MgO grain size: which one mostly affects the in-situ spinel refractory castable expansion? Ceramics International
[15] Kopanda, J.E. ; MacZura, G.: Production processes, properties and applications for calcium aluminate cements. Alumina Chemicals Handbook (1990) 171–183
[16] Buhr, A.: PhD Thesis and publication: Tonerdereiche Feuerfestbetone für den Einsatz in der Stahlindustrie (High alumina refractory casta-bles for steel applications). RWTH Aachen 1996; Stahl und Eisen 116 (1996) [9] 59–66
[17] Soudier, J.; Meunier, P. ; Nozahic, V.: Characterisation of alumina-magnesia castables after firing in expansion controlled environment
[18] Buhr, A.; Baier, B.; Aroni, J. M.; McConnell, R. W.: Raw material concepts for SiO2 free high strength castables in the temperature range up to 1200 °C. 43. Conference of Metallurgists 2004 Hamilton, Ontario, Canada
[19] Buhr, A.: The impact of innovative synthetic alumina raw materials on trend in European steel ladle lining. Interceram Refractories Manual (2004) 26–27
[20] Reisinger, P.; Preßlinger, H.; Pissenberger, E.; Posch, W.: Evaluation of the interaction of different ladle slags with two different alumina castables. Veitsch-Radex-Rundschau (1998) [1] 3–19
[21] Pandolfelli, V.C.: Thermal shock resistance of engineered microstructure. Short course UNITECR 2009, Salvador, Brazil
[22] Sakai, M.; Bradt, R.C.: Fracture toughness testing of brittle materials. Int. Mat. Rev. 38 (1993) [2] 53–78
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