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Detonation gun sprayed Al2O3-13TiO(2) coatings for biomedical applications
2014 (English)In: Surface Engineering, ISSN 0267-0844, E-ISSN 1743-2944, Vol. 30, no 4, 229-236 p.Article in journal (Refereed) Published
Abstract [en]

The present work deals with the investigation of the corrosion and sliding wear behaviour of detonation gun sprayed (DG) conventional and nanostructured Al2O3-13TiO(2) coatings deposited on a biomedical grade Ti-13Nb-13Zr alloy. The microstructure and phase composition of the coatings were characterised by scanning electron microscopy (SEM) and X-ray diffraction ( XRD). Hardness measurements were carried out using a Vickers hardness testing machine. The experimental results suggested that the nano structured Al2O3- 13TiO(2) coating exhibited 43 and 33% increase respectively in corrosion and wear resistances compared to the conventional Al2O3-13TiO(2) coating. This improvement in the above properties of nanostructured Al2O3-13TiO(2) coating is due to the presence of larger volume fraction of nanosized particles and lower porosity attained by spraying using DG.

Place, publisher, year, edition, pages
2014. Vol. 30, no 4, 229-236 p.
Keyword [en]
Al2O3-13TiO(2), Hardness, Corrosion, Wear, Ti-13Nb-13Zr, ALUMINA-TITANIA COATINGS, FRETTING WEAR BEHAVIOR, MECHANICAL-PROPERTIES, AL2O3-13-PERCENT-TIO2 COATINGS, NANOCRYSTALLINE POWDERS, NANOSTRUCTURED, POWDERS, HEAT-TREATMENT, PLASMA SPRAY, MICROSTRUCTURE, DEPOSITION, Materials Science, Coatings & Films
Identifiers
URN: urn:nbn:se:hv:diva-8443OAI: oai:DiVA.org:hv-8443DiVA: diva2:859846
Available from: 2015-10-08 Created: 2015-10-08 Last updated: 2015-10-08Bibliographically approved

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Joshi, S. V.
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