Fabrication and energetic characterization of micro and nano sized Al/CuO core-shell particles
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Date
2019-05-24
Authors
Zhang, Yiqi
Advisor
Wen, John
Li, Yuning
Li, Yuning
Journal Title
Journal ISSN
Volume Title
Publisher
University of Waterloo
Abstract
Thermite is one type of energetic material which could release a large amount of heat through an oxidation-reduction reaction. Thermite material has a lot of application in joining, metal refining and propulsion. Al/CuO is a well-studied thermite system enabling high energy release and production of pure copper from the reaction. Common Al/CuO thermites include composites of Al and CuO micro- and nano-particles, multi-layered Al and CuO structures, and agglomeration of particles. There is a gap in fabrication and characterization of individual and spherical Al/CuO core-shell particles that have promising application in mobile delivery of energy. A new synthesis method for producing spherical Al/CuO particles with a core-shell structure is introduced in this thesis. The compositions and microstructures of as-produced samples are investigated during fabrication and over the thermite reaction through which the core-shell geometry is characterized and the reaction mechanism is studied.
Description
Keywords
thermite, core-shell structure