| Study of Densification Behaviour, Microstructure
vis-à-vis High Temperature Properties of
Commercially Available Indian Magnesites |
P. Kumar,1, 2 A. Ghosh1 and H. S. Tripathi1, *
pages : 250-255
DOI : 10.1080/0371750X.2016.1211490 |
| Abstract |
| Indian magnesites from Salem and Almora regions were selected for the present study.
Chemical analysis of these magnesites confirmed that Salem region magnesite (SM)
contains CaO and SiO2, whereas Almora origin magnesite (AM) shows higher amount
of Fe2O3 and CaO as major impurities. Crystalline phases developed in sintered Salem
magnesite are periclase, forsterite and monticellite, while magnesioferrite and
monticellite are found in sintered Almora magnesite apart from periclase as major
phase. Microstructural analyses reveal that sintered SM has lower grain size than
sintered AM. Although, no significant difference was noticed at room temperature
flexural strengths of both the sintered samples, but sintered AM samples exhibit better
flexural strength at elevated temperature (1200oC). |
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