Effects of Alumina Bubble Addition on the Properties of Corundum–Spinel Castables Containing Cr2O3
Haonan Chen,
Xingfu Shi,
Jing Chen
et al.
Abstract:Purging plugs made of corundum–spinel castables containing Cr2O3 have been widely utilized in secondary refining process. However, their poor thermal shock resistance has greatly limited the improvement of their service life. Aiming to enhance their properties, we introduced alumina bubbles (ABs) to corundum–spinel castables, and the effects of the AB addition on the properties of the castables are studied in this manuscript. The results indicate that the apparent porosity, permanent linear change, cold streng… Show more
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