Calcium phosphate coatings modified with zinc- or copper- incorporation on Ti-40Nb alloy

The influence of the microarc oxidation parameters and electrolyte composition on the structure, properties and composition of CaP coatings modified with Zn- or Cu- incorporation on the Ti-40mas.%Nb (Ti-40Nb) alloy was investigated. The linear growth of thickness, roughness, and size of structural e...

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Published inJournal of physics. Conference series Vol. 830; no. 1; pp. 12101 - 12106
Main Authors Komarova, E G, Sedelnikova, M B, Sharkeev, Yu P, Kazakbaeva, A A, Glukhov, I A, Khimich, M A
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 04.05.2017
Subjects
Atomic properties
Calcium phosphates
Composition
Contact angle
Copper
Electric potential
Free surfaces
Niobium
Oxidation
Phosphate coatings
Physics
Structural members
Surface energy
Voltage
Zinc
Zinc coatings
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Summary:The influence of the microarc oxidation parameters and electrolyte composition on the structure, properties and composition of CaP coatings modified with Zn- or Cu- incorporation on the Ti-40mas.%Nb (Ti-40Nb) alloy was investigated. The linear growth of thickness, roughness, and size of structural elements with process voltage increasing has been revealed. It was shown that the CaP coatings have the low contact angles with liquids and, consequently, high free surface energy. This indicates a high hydrophilicity of the coatings. X-ray diffraction analysis showed that the coatings have X-ray amorphous structure. The increase of the process voltage leads to the formation of such crystalline phases as CaHPO4 and β-Ca2P2O7 in the coatings. The maximum Ca/P atomic ratio was equal to 0.4, and Zn or Cu contents was equal to 0.3 or 0.2 at.%, respectively.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/830/1/012101