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Title: In-Situ Single Step Synthesis of MoSi2 Nano Powder
Authors: Kaur, Taranpreet
Supervisor: Pandey, O. P.
Keywords: Molybdenum Disilicide;Nanoparticles;Nanoparticles;Formation Mechanism
Issue Date: 4-Sep-2017
Abstract: Molybdenum disilicide (MoSi2) has emerged as a promising material for high temperature applications. This transition metal silicide exhibits superior temperature stability, excellent oxidation resistance, low contact resistivity and is highly resistant to electro-migration. The low temperature synthesis of molybdenum disilicide has been investigated in a specially designed autoclave. The powder blend of MoO3-Si-Mg is heated at different temperatures for various interval of time. The impact of initial composition of the formation of MoSi2 is also studied. The prepared samples are characterized through various techniques i.e. X- ray diffraction (XRD), Field emission scanning electron microscope (FE-SEM) and high-resolution transmission electron microscope (HRTEM). The best results are obtained at 900 ºC for 10 hrs. dwell time. In this case, molybdenum disilicide (MoSi2) phase is obtained along with molybdenum silicide (Mo5Si3). This study provides the complete understanding associated with the formation of MoSi2.
Description: Master of Science -Physiscs
Appears in Collections:Masters Theses@SPMS

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