Processing and characterization of zinc sulfide based materials

dc.contributor.advisor Mufit Akinc
dc.contributor.author Han, Yong
dc.contributor.department Materials Science and Engineering
dc.date 2018-08-23T07:17:43.000
dc.date.accessioned 2020-06-30T07:05:08Z
dc.date.available 2020-06-30T07:05:08Z
dc.date.copyright Sat Jan 01 00:00:00 UTC 1994
dc.date.issued 1994
dc.description.abstract <p>Monodisperse, submicron, spherical, and porous clusters of zinc sulfide (ZnS) nanocrystallites were used as a host material, into which gallium phosphide (GaP) was impregnated. A solution containing a phosphinogallane, (t-Bu)[subscript]2GaP(t-Bu)[subscript]2, and a vapor mixture of GaI and P[subscript]4 were used as precursors for GaP;Powders obtained via organometallic precursors were nanocomposite powders with an average crystallite size of 12 nm and maintained the initial powder morphology of ZnS after heat treatment at 800°C for 24 hours. After hot isostatic pressing, relative densities greater than 95% and ultra-fine microstructures with average grain sizes ranging 16-31 nm were achieved. Nanocomposites showed significant increase in hardness, as high as ~100%, compared to pure ZnS. Powders obtained using vapor phase precursors were mainly solid solutions between ZnS and GaP. The powders were densified to over 98% relative densities by hot isostatic pressing. Both hardness and fracture toughness increased with increasing GaP content.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/rtd/10476/
dc.identifier.articleid 11475
dc.identifier.contextkey 6405194
dc.identifier.doi https://doi.org/10.31274/rtd-180813-11762
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath rtd/10476
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/63626
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/rtd/10476/r_9503561.pdf|||Fri Jan 14 18:21:33 UTC 2022
dc.subject.disciplines Materials Science and Engineering
dc.subject.keywords Materials science and engineering
dc.subject.keywords Ceramic engineering
dc.title Processing and characterization of zinc sulfide based materials
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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