Investigation on the Creep property of Theoretical Composition Magnesia Alumina Spinel Bricks

Abstract:

Using alumina-rich MgAl₂O₄ spinel AR78 and 97 fused magnesite as raw materials, brine as the binder, magnesia alumina spinel bricks close to theoretical composition have been prepared. Then the high temperature creep experiments are carried on. The creep property is analyzed by microstructure and creep curve. The results show that: (1) The magnesia alumina spinel bricks close to theoretical composition prepared have well sintering performance and compact structure.(2) The specimen 1# has the best creep property, of which the final creep rate was -1.45% after creep experiment for 50h. (3) Under high temperature and pressure for a long time in creep experiment, the internal of spinel is further sintered, the pores of the specimens are rearranged.

• Periodical: Advanced Materials Research (Volumes 690-693)
• Pages: 654-657
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.690-693.654
• Online since: May 2013
• Authors: Shan Shan Hong, Yong Li
• Keywords: Creep Property, Magnesia Alumina Spinel, Oxy-Fuel Glass Melting Furnace

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