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Degradation of Magnesite–Chrome Refractory Brick by Hydration
Author(s) -
Malarria Jorge A.,
Tinivella Ricardo
Publication year - 1997
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1997.tb03116.x
Subject(s) - magnesite , periclase , brick , thermogravimetry , differential scanning calorimetry , materials science , refractory (planetary science) , degradation (telecommunications) , metallurgy , absorption of water , differential thermal analysis , mineralogy , composite material , chemistry , magnesium , inorganic chemistry , thermodynamics , telecommunications , physics , computer science , diffraction , optics
Magnesite‐chrome refractory brick that is heated to temperatures as low as 500°C undergoes premature degradation, with a significant decrease in mechanical properties. Results that are obtained by dilatometry, differential thermal analysis, thermogravimetry, differential scanning calorimetry, X‐ray diffractometry, and water absorption indicate that superficial hydration of the periclase grains during storage causes such degradation.