Formation of the hierarchical porous structure and surface morphology in the micro-arc calcium phosphate coatings

E. G. Komarova, V. V. Chebodaeva, I. A. Khlusov, L. S. Litvinova, Yu P. Sharkeev

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

Abstract

The study of the formation of the hierarchically organized porous structure and surface morphology, as well as phase and elemental compositions of the calcium phosphate (CaP) coatings deposited by the micro-arc oxidation (MAO) method under varied applied voltage (200-300 V) was performed. The increase of the MAO voltage led to the linear increase of the coating thickness (50-100 μm), surface average roughness (3.0-7.5 μm), surface porosity (20-35%) and sizes of the structural elements (spheres and pores). In addition, the increase in the voltage led to the structural-phase transformation in the coatings from the amorphous state to the amorphous-crystalline state with incorporation of CaHPO4 and β-Ca2P2O7 phases. The elemental composition of the CaP coatings did not significantly depend on the applied voltage value, however, the Ca content and Ca/P atomic ratio increased with increasing of the voltage. Thus, the MAO technique allows to form on the metal substrate the CaP coatings with specific physicochemical, and structural properties influencing the behavior of stromal stem cells and bone tissue regeneration.

Original languageEnglish
Title of host publicationProceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2019
EditorsVictor E. Panin, Sergey G. Psakhie, Vasily M. Fomin
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735419124
DOIs
Publication statusPublished - 19 Nov 2019
EventInternational Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2019 - Tomsk, Russian Federation
Duration: 1 Oct 20195 Oct 2019

Publication series

NameAIP Conference Proceedings
Volume2167
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

ConferenceInternational Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2019
CountryRussian Federation
CityTomsk
Period1.10.195.10.19

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Komarova, E. G., Chebodaeva, V. V., Khlusov, I. A., Litvinova, L. S., & Sharkeev, Y. P. (2019). Formation of the hierarchical porous structure and surface morphology in the micro-arc calcium phosphate coatings. In V. E. Panin, S. G. Psakhie, & V. M. Fomin (Eds.), Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2019 [020167] (AIP Conference Proceedings; Vol. 2167). American Institute of Physics Inc.. https://doi.org/10.1063/1.5132034