Microstructural and mechanical properties of spark plasma sintering of Ni22Cr11Al powders synthesized by mechanical alloying for thermal barrier coating

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dc.contributor.author Omoniyi, FIS
dc.contributor.author Olubambi, PA
dc.contributor.author Sadiku, RE
dc.date.accessioned 2019-10-02T04:37:38Z
dc.date.available 2019-10-02T04:37:38Z
dc.date.issued 2018-09-29
dc.identifier.citation Omoniyi, F.I.S., Olubambi, P.A. and Sadiku, R.E., 2018. Microstructural and Mechanical Properties of Spark Plasma Sintering of Ni22Cr11Al Powders Synthesized by Mechanical Alloying for Thermal Barrier Coating. J Material Sci Eng, 7(5), (485). DOI:10.4172/2169-0022.1000485 en
dc.identifier.volume 7 en
dc.identifier.issued 5 en
dc.identifier.startpage 1 en
dc.identifier.endpage 8 en
dc.identifier.issn 2169-0022
dc.identifier.uri http://hdl.handle.net/10468/8661
dc.identifier.doi 10.4172/2169-0022.1000485 en
dc.description.abstract Thermal barrier coatings (TBCs) systems are used to protect hot sections of industrial gas turbine blades against high temperature corrosion and oxidation. Currently, MCrAlY powders up to 100 µm in diameter are used in the production of thermal barrier coatings by industrial gas turbine component manufacturers. It has been found that nanocrystalline MCrAlY layer provide better oxidation behaviour than currently used microstructure MCrAlY layer at elevated temperature. In the present study, nanocrystalline NI22Cr11Al composites was synthesized using high energy planetary ball milling for different periods of time, and the dense NI22Cr11Al alloy was fabricated by using spark plasma sintering process at different temperatures ranging from 1000°C to 1200°C. The resultant powder particles, bulk and dense samples were characterised using scanning electron microscope (SEM), X-ray diffraction analysis (XRD) and Micro Vickers hardness test. The results indicated that mechanical milling process produce morphology changes, particle size increase, crystallite size decrease down to nanometric level (40 nm) and formation of Nano dispersions in the process. en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher OMICS International en
dc.relation.uri https://www.omicsonline.org/open-access/microstructural-and-mechanical-properties-of-spark-plasma-sintering-of-ni22cr11al-powders-synthesized-by-mechanical-alloying-for-t-2169-0022-1000485-104669.html
dc.rights © 2018 Omoniyi FIS et al en
dc.rights.uri https://creativecommons.org/licenses/by/4.0/ en
dc.subject Mechanical alloying en
dc.subject Mechanical properties en
dc.subject Microstructure en
dc.subject Spark plasma sintering en
dc.subject Thermal barrier coating en
dc.title Microstructural and mechanical properties of spark plasma sintering of Ni22Cr11Al powders synthesized by mechanical alloying for thermal barrier coating en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Folorunso Omoniyi, College of Science, Engineering and Food Science, University College Cork, Cork, Ireland. +353-21-490-3000 en
dc.internal.availability Full text available en
dc.description.version Published Version en
dc.description.status Peer reviewed en
dc.identifier.journaltitle Journal of Material Sciences & Engineering en
dc.identifier.articleid 485 en


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© 2018 Omoniyi FIS et al Except where otherwise noted, this item's license is described as © 2018 Omoniyi FIS et al
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