A Study on integral recycling of valuable particle embedded composite wastes

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2019
Göynük, Tansu
Recovery of the valuable particle embedded composite cutting tools was achieved by electrodissolution and deposition techniques. Diamond embedded composite wastes including both bronze matrix and cobalt-copper-tin matrix were used to recycle comprehensively and efficiently within the scope of this thesis. The parameters like current density, temperature and electrolyte composition were optimized to obtain both diamond and metal constituents as compact, dense powder with minimum specific surface area and average particle size. Scanning electron microscope images, X-Ray diffraction analysis, particle size measurements and specific surface area measurements were evaluated to understand the effects of parameters on the electrodeposited powder qualities. Effects of hydrogen evolution on the properties of the collected metal powders were observed during optimization of the electrodeposition conditions. The morphology and the orientation of the powder growth were found to be affected by the hydrogen evolution reaction.

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Citation Formats
T. Göynük, “A Study on integral recycling of valuable particle embedded composite wastes,” M.S. - Master of Science, Middle East Technical University, 2019.