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ArticleName Investigation of the influence of the time and deposition rate on the morphology and phase composition of calcium-phosphate coatings on a TiNi substrate
DOI 10.17580/nfm.2023.01.04
ArticleAuthor Marchenko E. S., Baigonakova G. A., Larikov V. A., Dubovikov K. M.

National Research Tomsk State University, Tomsk, Russia:

E. S. Marchenko, Doctor of Physical and Mathematical Sciences, Associate Professor, Head of the Laboratory of Medical Alloys and Shape Memory Implants, e-mail:
G. A. Baigonakova, Candidate of Physical and Mathematical Sciences, Assistant, Senior Researcher, e-mail:
V. A. Larikov, Post-Graduate Student, Research Engineer, e-mail:
K. M. Dubovikov, Post-Graduate Student, Research Engineer, e-mail:


In this work, the effect of technological modes of applying coatings based on calcium-phosphate powder on substrates of titanium nickelide alloys was studied. Compacted powders of calcium phosphates were used as targets. The optimal modes of coating deposition were selected and the deposition rates were determined. The structure, morphology, and phase composition of the alloy surfaces were studied by X-ray diffraction analysis and scanning electron microscopy. According to the results of the atomic force microscopy, a significant decrease in surface roughness was found depending on the thickness of the calcium-phosphate layer. When assessing the cytocompatibility of the alloys, a correlation was found between the number of viable mesenchymal stromal cell cultures and the thickness of the Ca – P coating. When the coating thickness increases, the viability coefficient of cell cultures increases either.

The research was carried out at the expense of the grant of the Russian Science Foundation (RSF), No. 19-72-10105,
The structure was studied using the equipment of the Tomsk Regional Center for Collective Use of National Research Tomsk State University. The Center is supported by the Grant of the Ministry of Science and Higher Education of the Russian Federation, No. 075-15-2021-693 (No. 13.TsKP.21.0012).

keywords Calcium phosphate, TiNi alloy, ion-plasma sputtering, microstructure, biocompatibility

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Full content Investigation of the influence of the time and deposition rate on the morphology and phase composition of calcium-phosphate coatings on a TiNi substrate