Experimental Study on the Phase Formation of MgxB2 (x=0.8, 1.0, 1.2)

Mohd Faizal Mohd Aris

Abstract


Phase formation of Magnesium diboride MgxB2 (x=0.8, 1.0, 1.2) by in situ reaction of Magnesium (Mg) and Boron (B) at different annealing temperature by varying the nominal Mg composition was compared. The X-ray difffraction pattern indicates that Magnesium Oxide (MgO) is the major secondary phase. Some unreacted Mg was found for nominally stoichiometric and Mg excess samples annealed at or below 750°C. However, no unreacted Mg was detected by XRD for Mg deficient samples. Scanning Electron microscopy images show the porous nature of synthesised samples.

Keywords


Magnesium diboride; Phase formation; Porous;

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References


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DOI: https://doi.org/10.11113/mjfas.v5n1.281

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