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Synthesis and Characterization of Magnesium Aluminate Spinel by Combustion Route


Affiliations
1 Department of Metallurgy, School of Mines and metallurgy, Kazi Nazrul Universit Asansol 713340, India
2 Department of Metallurgical & Materials Engineering, Jadavpur University, Kolkata-700032, India
     

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Magnesium aluminate is synthesized utilizing precursors of Magnesium, aluminium nitrates in 1:2 molar ratios along with citric acid both as fuel and reducing agent. All precursors are mixed properly and undergo mild heat treatment in hot plate for partial combustion to obtain gel. Gel is made to dry and undergo annealing at 800ºC for 5 hours to obtain the required phase. Thermal analysis is carried for the gel to determine spinelization temperature. Phase analysis by XRD is carried to determine the phase followed by bond information from FTIR analysis in terms of M-O co-ordinations. Morphology of the sample is analyzed by SEM to be uniform, spherical shape with little bit of agglomeration tendency.

Keywords

Spinel, Magnesium Aluminate, Phase, Bonding.
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  • Synthesis and Characterization of Magnesium Aluminate Spinel by Combustion Route

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Authors

Soumya Mukherjee
Department of Metallurgy, School of Mines and metallurgy, Kazi Nazrul Universit Asansol 713340, India
Srinath Ranjan Ghosh
Department of Metallurgical & Materials Engineering, Jadavpur University, Kolkata-700032, India

Abstract


Magnesium aluminate is synthesized utilizing precursors of Magnesium, aluminium nitrates in 1:2 molar ratios along with citric acid both as fuel and reducing agent. All precursors are mixed properly and undergo mild heat treatment in hot plate for partial combustion to obtain gel. Gel is made to dry and undergo annealing at 800ºC for 5 hours to obtain the required phase. Thermal analysis is carried for the gel to determine spinelization temperature. Phase analysis by XRD is carried to determine the phase followed by bond information from FTIR analysis in terms of M-O co-ordinations. Morphology of the sample is analyzed by SEM to be uniform, spherical shape with little bit of agglomeration tendency.

Keywords


Spinel, Magnesium Aluminate, Phase, Bonding.

References





DOI: https://doi.org/10.24906/isc%2F2021%2Fv35%2Fi1%2F208412