Abstract
Abstract The effect of argon atmosphere on the formation of MoSi2 by self-propagating combustion method has been detailedly investigated in present work by comparing SHS reaction between Mo and Si in argon atmosphere with that in vacuum. The SHS procedure in argon atmosphere could produce higher heating rate and maximum temperature than that in vacuum. The particle size distribution of synthesized products has been studied by light transmission sedimentation method. More homogeneous particle size distribution of the molybdenum disilicide by SHS method in argon atmosphere was achieved than it in vacuum. And it also can be observed in SEM photographs of synthesized products. Compared with SHS method in vacuum, a purer product was indicated by XRD and X-fluorescence analysis results while reaction in argon atmosphere.
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