Effect of the process voltage and electrolyte composition on the structure and properties of Sr-incorporated micro-arc calcium phosphate coatings formed on Mg-0.8Ca

M. B. Sedelnikova, Yu P. Sharkeev, E. G. Komarova, A. A. Kazakbaeva, I. V. Fadeeva, J. Schmidt, V. Valkovska, A. Osīte

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

1 Citation (Scopus)

Abstract

Sr-incorporated calcium phosphate coatings were deposited on Mg-0.8 wt. % Ca alloy by the micro-arc oxidation method under the process voltages of 350-500 V, with using of Sr-substituted tricalcium phosphate (Sr-TCP) and Sr-substituted hydroxyapatite (Sr-HA). The current density for MAO process of Sr-HA coatings deposition was higher than that for the process of Sr-TCP coatings deposition. The coating morphology, microstructure and compositions have been studied using scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX) and X-ray diffraction (XRD). The phase composition of Sr-HA coatings included α-TCP, β-TCP, Mg3(PO4)2 and MgO. In addition, HA was contained in the composition of Sr-TCP. It was revealed that Sr is uniformly distributed within the coating layer. The highest concentration of Sr was 2.0 at. % in Sr-HA coatings deposited at 500 V.

Original languageEnglish
Title of host publicationProceedings of the Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures
EditorsVasily M. Fomin, Victor E. Panin, Sergey G. Psakhie
PublisherAmerican Institute of Physics Inc.
Volume2051
ISBN (Electronic)9780735417779
DOIs
Publication statusPublished - 12 Dec 2018
EventInternational Symposium on Hierarchical Materials: Development and Applications for New Technologies and Reliable Structures 2018 - Tomsk, Russian Federation
Duration: 1 Oct 20185 Oct 2018

Conference

ConferenceInternational Symposium on Hierarchical Materials: Development and Applications for New Technologies and Reliable Structures 2018
CountryRussian Federation
CityTomsk
Period1.10.185.10.18

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Sedelnikova, M. B., Sharkeev, Y. P., Komarova, E. G., Kazakbaeva, A. A., Fadeeva, I. V., Schmidt, J., Valkovska, V., & Osīte, A. (2018). Effect of the process voltage and electrolyte composition on the structure and properties of Sr-incorporated micro-arc calcium phosphate coatings formed on Mg-0.8Ca. In V. M. Fomin, V. E. Panin, & S. G. Psakhie (Eds.), Proceedings of the Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures (Vol. 2051). [020269] American Institute of Physics Inc.. https://doi.org/10.1063/1.5083512