Solidification analysis of a centrifugal atomizer using the Al-32.7wt% Cu alloy

dc.contributor.advisor Iver E. Anderson
dc.contributor.author Osborne, Matthew
dc.contributor.department Materials Science and Engineering
dc.date 2018-08-23T15:43:42.000
dc.date.accessioned 2020-06-30T07:17:38Z
dc.date.available 2020-06-30T07:17:38Z
dc.date.copyright Wed Jan 01 00:00:00 UTC 1997
dc.date.issued 1997
dc.description.abstract <p>A centrifugal atomizer (spinning disk variety) was designed and constructed for the production of spherical metal powders, 100-1000 microns in diameter in an inert atmosphere. Initial atomization experiments revealed the need for a better understanding of how the liquid metal was atomized and how the liquid droplets solidified. To investigate particle atomization, Ag was atomized in air and the process recorded on high-speed film. To investigate particle solidification, Al-32.7wt.% Cu was atomized under inert atmosphere and the subsequent particles were examined microscopically to determine solidification structure and rate;This dissertation details the experimental procedures used in producing the Al-Cu eutectic alloy particles, examination of the particle microstructures, and determination of the solidification characteristics (e.g., solidification rate) of various phases. Finally, correlations are proposed between the operation of the centrifugal atomizer and the observed solidification spacings;This research was supported in part by the Office of Basic Energy Science, USDOE. The Ames laboratory is operated by Iowa State University for the U.S. Department of Energy under contract number W-7405-Eng-82.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/rtd/12018/
dc.identifier.articleid 13017
dc.identifier.contextkey 6760659
dc.identifier.doi https://doi.org/10.31274/rtd-180813-13296
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath rtd/12018
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/65340
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/rtd/12018/r_9814679.pdf|||Fri Jan 14 19:11:00 UTC 2022
dc.subject.disciplines Materials Science and Engineering
dc.subject.disciplines Metallurgy
dc.subject.keywords Materials science and engineering
dc.subject.keywords Metallurgy
dc.title Solidification analysis of a centrifugal atomizer using the Al-32.7wt% Cu alloy
dc.type article
dc.type.genre dissertation
dspace.entity.type Publication
relation.isOrgUnitOfPublication bf9f7e3e-25bd-44d3-b49c-ed98372dee5e
thesis.degree.level dissertation
thesis.degree.name Doctor of Philosophy
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