Materials Characterization in the Development of Combustion-based Methods for Synthesis of Niobium Silicides

Edgar J Maguregui, University of Texas at El Paso

Abstract

The use of characterization techniques is essential for a better understanding of novel manufacturing processes and for investigating how the process parameters affect the products. Mechanically activated self-propagating high-temperature synthesis (MASHS) is an attractive method for the production of high-temperature structural materials. In the present work, it was used to fabricate Nb5Si3 compound and Nb5Si3/Nb composites. It has been shown that for mechanical activation of Nb/Si mixtures, a planetary ball mill is more effective than a shaker ball mill used in prior research on MASHS of Nb5Si3. The influence of mixture composition and experimental parameters, such as milling time and pellet diameter, on the formation of α, β, and γ phases of Nb5Si3 was determined. This study shows how the variation of process parameters and use of different ignition methods affect the final composition of niobium silicide-based composites obtained by MASHS.

Subject Area

Mechanical engineering|Materials science

Recommended Citation

Maguregui, Edgar J, "Materials Characterization in the Development of Combustion-based Methods for Synthesis of Niobium Silicides" (2019). ETD Collection for University of Texas, El Paso. AAI13884986.
https://digitalcommons.utep.edu/dissertations/AAI13884986

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