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- Title
Effect of magnesia on strength of hydratable alumina-bonded castable refractories.
- Authors
Ye, Guotian; Troczynski, Tom
- Abstract
The change in strength of hydratable alumina-bonded castable refractories in the presence of magnesia powder and magnesia aggregate, after heat treatment at 110∘ and 816∘C, and the relationship between the strength and morphology and thermal decomposition behavior of the hydrates in the castables are investigated. The mechanism of bonding facilitated by the presence of magnesite in hydratable alumina-bonded castables after drying is discussed. The contribution of polycondensation process occurring after dehydroxylation of the hydrates in the castables after firing at 816∘C is proposed as the principal mechanism for strength development.
- Subjects
MAGNESIUM oxide; COMPLEX compounds; HEATING equipment; MORPHOGENESIS; POLYCONDENSATION; CASTABLE refractories; MAGNESITE; ALUMINUM; LIGHT metals
- Publication
Journal of Materials Science, 2005, Vol 40, Issue 15, p3921
- ISSN
0022-2461
- Publication type
Academic Journal
- DOI
10.1007/s10853-005-0759-8