Designing oxidation resistant ultra-high temperature ceramics through the development of an adherent native thermal barrier

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dc.contributor.author Ouyang, Gaoyuan
dc.contributor.author Besser, Matthew
dc.contributor.author Kramer, Matthew
dc.contributor.author Akinc, Mufit
dc.contributor.author Ray, Pratik
dc.contributor.department Ames Laboratory
dc.contributor.department Materials Science and Engineering
dc.date 2020-07-22T22:11:00.000
dc.date.accessioned 2021-02-24T20:42:27Z
dc.date.available 2021-02-24T20:42:27Z
dc.date.copyright Tue Jan 01 00:00:00 UTC 2019
dc.date.embargo 2021-03-20
dc.date.issued 2019-06-25
dc.description.abstract <p>We present a design concept for developing ZrB2-SiC-AlN composites with enhanced oxidative stability at ultra-high temperatures (∼2000 °C) and low pressures (100 Torr). The oxidative stability of these materials arises from a protective silica based scale. However, active oxidation of SiC above 1700 °C presents a challenge, which we circumvent through the in-situ growth of a zirconia layer that serves as a thermal barrier, ensuring that the effective temperature at the zirconia/Si rich subscale is less than the active oxidation temperature. The design concept is validated by a series of ultra-high temperature oxidation experiments under static as well as cyclic conditions.</p>
dc.description.comments <p>This is a manuscript of an article published as Ouyang, Gaoyuan, Matthew F. Besser, Matthew J. Kramer, Mufit Akinc, and Pratik K. Ray. "Designing oxidation resistant ultra-high temperature ceramics through the development of an adherent native thermal barrier." <em>Journal of Alloys and Compounds</em> 790 (2019): 1119-1126. DOI: <a href="https://doi.org/10.1016/j.jallcom.2019.03.250" target="_blank">10.1016/j.jallcom.2019.03.250</a>. Posted with permission.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/ameslab_pubs/434/
dc.identifier.articleid 1438
dc.identifier.contextkey 18619602
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath ameslab_pubs/434
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/93282
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/ameslab_pubs/434/2019_OuyangGaoyuan_DesigningOxidation.pdf|||Sat Jan 15 00:16:08 UTC 2022
dc.source.uri 10.1016/j.jallcom.2019.03.250
dc.subject.disciplines Metallurgy
dc.subject.keywords Oxidation
dc.subject.keywords Ultra-high temperature ceramics (UHTCs)
dc.subject.keywords Thermal cycling
dc.subject.keywords Silica
dc.title Designing oxidation resistant ultra-high temperature ceramics through the development of an adherent native thermal barrier
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isOrgUnitOfPublication 25913818-6714-4be5-89a6-f70c8facdf7e
relation.isOrgUnitOfPublication bf9f7e3e-25bd-44d3-b49c-ed98372dee5e
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