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Performance of Hybrid Powder-Suspension Axial Plasma Sprayed Al2O3-YSZ Coatings in Bovine Serum Solution
Department of Physics, School of Advanced Sciences, VIT, Vellore 632014, India Centre for Biomaterials, Cellular and Molecular Theranostics, VIT, Vellore 632014, India.
University West, Department of Engineering Science, Division of Subtractive and Additive Manufacturing.ORCID iD: 0000-0001-5676-7903
Centre for Biomaterials, Cellular and Molecular Theranostics, VIT, Vellore 632014, India.
University West, Department of Engineering Science, Research Enviroment Production Technology West. (PTW)ORCID iD: 0000-0001-5521-6894
2019 (English)In: Materials, E-ISSN 1996-1944, Vol. 12, no 12, article id E1922Article in journal (Refereed) Published
Abstract [en]

Ceramic coatings on metallic implants are a promising alternative to conventional implants due to their ability to offer superior wear resistance. The present work investigates the sliding wear behavior under bovine serum solution and indentation crack growth resistance of four coatings, namely (1) conventional powder-derived alumina coating (Ap), (2) suspension-derived alumina coating (As), (3) composite Al2O3-20wt % Yittria stabilized Zirconia (YSZ) coating (AsYs) deposited using a mixed suspension, and (4) powder Al2O3-suspension YSZ hybrid composite coating ApYs developed by axial feeding plasma spraying, respectively. The indentation crack growth resistance of the hybrid coating was superior due to the inclusion of distributed fine YSZ particles along with coarser alumina splats. Enhanced wear resistance was observed for the powder derived Ap and the hybrid ApYs coatings, whereas the suspension sprayed As and AsYs coatings significantly deteriorated due to extensive pitting.

Place, publisher, year, edition, pages
2019. Vol. 12, no 12, article id E1922
Keywords [en]
axial feeding, bovine serum solution, hybrid plasma spray coating, indentation, sliding wear
National Category
Manufacturing, Surface and Joining Technology
Research subject
ENGINEERING, Manufacturing and materials engineering
Identifiers
URN: urn:nbn:se:hv:diva-14435DOI: 10.3390/ma12121922ISI: 000473759400041PubMedID: 31207880Scopus ID: 2-s2.0-85067995972OAI: oai:DiVA.org:hv-14435DiVA, id: diva2:1356854
Available from: 2019-10-02 Created: 2019-10-02 Last updated: 2024-07-04

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Goel, SnehaJoshi, Shrikant V.

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