Spheroidisation of iron powder in a microwave plasma reactor

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dc.contributor.author Van Laar, Jean H.
dc.contributor.author Van der Walt, I.J.
dc.contributor.author Bissett, H.
dc.contributor.author Barry, J.C.
dc.contributor.author Crouse, Philippus L.
dc.date.accessioned 2016-12-21T07:50:21Z
dc.date.available 2016-12-21T07:50:21Z
dc.date.issued 2016-10
dc.description.abstract Plasma-assisted spheroidisation of metal powders offers several technical advantages with respect to both the ease of materials handling and powder-metallurgical item manufacturing. Advantages include improved flowability, increased powder packing density, elimination of internal component cavities and fractures, changes in morphology resulting in decreased friction between particles and contamination during pneumatic transport and enhanced particle purity. In this empirical study, spherical iron particles were produced using a microwave plasma operating at atmospheric pressure and characterized using optical microscopy and SEM techniques. Iron powders were fed into the system at fixed operating conditions, resulting in particles with spherical structures. The theoretical estimate of the time required for melting to occur is 1.6 ms, an order of magnitude smaller than the actual residence time. en_ZA
dc.description.department Chemical Engineering en_ZA
dc.description.librarian am2016 en_ZA
dc.description.uri http://www.saimm.co.za/journal-papers en_ZA
dc.identifier.citation Van Laar, JH, Van der Walt, IJ, Bissett, H, Barry, JC & Crouse, PL 2016, 'Spheroidisation of iron powder in a microwave plasma reactor', Journal of the Southern African Institute of Mining and Metallurgy, vol. 116, no. 10, pp. 941-946. en_ZA
dc.identifier.issn 0038-223X (print)
dc.identifier.issn 2225-6253 (online)
dc.identifier.other 10.17159/2411-9717/2016/v116n10a8
dc.identifier.uri http://hdl.handle.net/2263/58437
dc.language.iso en en_ZA
dc.publisher Southern African Institute of Mining and Metallurgy en_ZA
dc.rights © The Southern African Institute of Mining and Metallurgy, 2016 en_ZA
dc.subject Iron powder en_ZA
dc.subject Spheroidisation en_ZA
dc.subject Microwave plasma en_ZA
dc.title Spheroidisation of iron powder in a microwave plasma reactor en_ZA
dc.type Article en_ZA


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