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Microstructure and wear behaviour of powder and suspension hybrid Al2O3–YSZ coatings
University of Nottingham, Faculty of Engineering, UK.
University of Nottingham, Faculty of Engineering, UK.
University West, Department of Engineering Science, Research Enviroment Production Technology West. (PTW)ORCID iD: 0000-0001-5521-6894
University of Nottingham, Faculty of Engineering, UK.
2018 (English)In: Ceramics International, ISSN 0272-8842, E-ISSN 1873-3956, Vol. 44, no 7, p. 8498-8504Article in journal (Refereed) Published
Abstract [en]

Abstract Suspension based plasma sprayed coatings can yield superior microstructural and tribological properties compared to conventional powder based plasma sprayed coatings. This study investigates a new hybrid method, using simultaneous spraying from powder and suspension, to produce composite coatings using alumina and yttria stabilised zirconia (YSZ), with potentially excellent wear and thermal properties. Dry sliding wear showed the alumina suspension-YSZ suspension coating yielded half the specific wear rate of the alumina powder-YSZ suspension, explained by preferential gamma alumina formation and increased porosity in the latter. Both YSZ-containing samples showed superior toughness and wear rate than simple alumina powder and suspension coatings.

Place, publisher, year, edition, pages
2018. Vol. 44, no 7, p. 8498-8504
Keyword [en]
A suspensions, B composites, C wear resistance, D Al2O3
National Category
Manufacturing, Surface and Joining Technology
Research subject
ENGINEERING, Manufacturing and materials engineering
Identifiers
URN: urn:nbn:se:hv:diva-12076DOI: 10.1016/j.ceramint.2018.02.048ISI: 000428974300150Scopus ID: 2-s2.0-85043470134OAI: oai:DiVA.org:hv-12076DiVA, id: diva2:1184656
Note

Available online 6 February 2018

Available from: 2018-02-22 Created: 2018-02-22 Last updated: 2018-04-19Bibliographically approved

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Joshi, Shrikant V.

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