Effect of surface topography and chemical composition on wettability of calcium phosphate coatings formed on Ti-40Nb alloy

Ekaterina Komarova, Valentina Chebodaeva, Yurii Sharkeev, Maria Sedelnikova

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Citations (Scopus)

Abstract

The influence of the microarc oxidation parameters as electrical voltage and process duration on the surface morphology and topography, wettability and chemical composition of calcium phosphate coatings on the low elastic module Ti-40mas.%Nb (Ti-40Nb) alloy surface has been investigated. The linear growth of thickness and roughness and linear decrease of free surface energy with increasing process electrical voltage have been obtained. It was shown that calcium phosphate coatings have low contact angle with liquids and consequently high free surface energy. It indicates a high hydrophilicity. X-ray diffraction analyses showed that the coatings after deposition have X-ray amorphous state that indicates high rate of coating dissolution. The coatings have maximum Ca/P ratio of 0.6. The optimal range of the oxidation voltage from 200 to 250 V and process duration from 5 to 10 min have been found. Such parameters allow to form the coating with the specific morphology, roughness and thickness and high hydrophylicity.

Original languageEnglish
Title of host publicationMultifunctional Materials
Subtitle of host publicationDevelopment and Application
PublisherTrans Tech Publications Ltd
Pages370-376
Number of pages7
ISBN (Print)9783038357292
DOIs
Publication statusPublished - 1 Jan 2016
Event12th International Conference on Prospects of Fundamental Sciences Development, PFSD 2015 - Tomsk, Russian Federation
Duration: 21 Apr 201524 Apr 2015

Publication series

NameKey Engineering Materials
Volume683
ISSN (Print)1013-9826

Conference

Conference12th International Conference on Prospects of Fundamental Sciences Development, PFSD 2015
CountryRussian Federation
CityTomsk
Period21.4.1524.4.15

Keywords

  • Calcium phosphate coating
  • Hydrophilicity
  • Microarc oxidation
  • Wettability

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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  • Cite this

    Komarova, E., Chebodaeva, V., Sharkeev, Y., & Sedelnikova, M. (2016). Effect of surface topography and chemical composition on wettability of calcium phosphate coatings formed on Ti-40Nb alloy. In Multifunctional Materials: Development and Application (pp. 370-376). (Key Engineering Materials; Vol. 683). Trans Tech Publications Ltd. https://doi.org/10.4028/www.scientific.net/KEM.683.370