Wollastonite and calcium phosphate biocoatings with Zn- and Cu-incorporation produced by a microarc oxidation method

Abstract

Investigations of wollastonite and calcium phosphate biocoatings with Zn- and Cu-incorporation produced by a microarc oxidation method were presented. Dependences of coating properties on the microarc oxidation parameters were revealed. A variation of the process parameters allowed us to produce wollastonite-calcium phosphate coatings with a plate-like structure, thickness of 25-30 μm, roughness of 2.5-5.0 μm, and enhanced strength properties. Coatings based on substituted hydroxyapatite deposited under voltages of 200-250 V have an X-ray amorphous structure. An increase of oxidation voltage to 300 V leads to the formation of crystalline phases in the coating, such as CaHPO₄ and β-Ca₂P₂O₇. The maximum content of 0.4 at% Zn and 0.1 at% Cu was obtained for coatings based on Zn- and Cu-substituted hydroxyapatites, consequently, deposited under oxidation voltage of 250 V.

Original language	English
Pages (from-to)	144-151
Number of pages	8
Journal	Key Engineering Materials
Volume	695
DOIs	https://doi.org/10.4028/www.scientific.net/KEM.695.144
Publication status	Published - 2016
Event	International Seminar on Biomaterials and Regenerative Medicine, BIOREMED 2015 - Oradea Duration: 17 Sep 2015 → 19 Sep 2015

Keywords

Electrical and physical parameters
Microarc oxidation method
Substituted hydroxyapatite
Wollastonite

ASJC Scopus subject areas

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

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Sedelnikova, M. B., Komarova, E. G., & Sharkeev, Y. P. (2016). Wollastonite and calcium phosphate biocoatings with Zn- and Cu-incorporation produced by a microarc oxidation method. Key Engineering Materials, 695, 144-151. https://doi.org/10.4028/www.scientific.net/KEM.695.144

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abstract = "Investigations of wollastonite and calcium phosphate biocoatings with Zn- and Cu-incorporation produced by a microarc oxidation method were presented. Dependences of coating properties on the microarc oxidation parameters were revealed. A variation of the process parameters allowed us to produce wollastonite-calcium phosphate coatings with a plate-like structure, thickness of 25-30 μm, roughness of 2.5-5.0 μm, and enhanced strength properties. Coatings based on substituted hydroxyapatite deposited under voltages of 200-250 V have an X-ray amorphous structure. An increase of oxidation voltage to 300 V leads to the formation of crystalline phases in the coating, such as CaHPO4 and β-Ca2P2O7. The maximum content of 0.4 at% Zn and 0.1 at% Cu was obtained for coatings based on Zn- and Cu-substituted hydroxyapatites, consequently, deposited under oxidation voltage of 250 V.",

keywords = "Electrical and physical parameters, Microarc oxidation method, Substituted hydroxyapatite, Wollastonite",

author = "Sedelnikova, {Maria B.} and Komarova, {Ekaterina G.} and Sharkeev, {Yury Petrovich}",

year = "2016",

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AU - Sharkeev, Yury Petrovich

PY - 2016

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AB - Investigations of wollastonite and calcium phosphate biocoatings with Zn- and Cu-incorporation produced by a microarc oxidation method were presented. Dependences of coating properties on the microarc oxidation parameters were revealed. A variation of the process parameters allowed us to produce wollastonite-calcium phosphate coatings with a plate-like structure, thickness of 25-30 μm, roughness of 2.5-5.0 μm, and enhanced strength properties. Coatings based on substituted hydroxyapatite deposited under voltages of 200-250 V have an X-ray amorphous structure. An increase of oxidation voltage to 300 V leads to the formation of crystalline phases in the coating, such as CaHPO4 and β-Ca2P2O7. The maximum content of 0.4 at% Zn and 0.1 at% Cu was obtained for coatings based on Zn- and Cu-substituted hydroxyapatites, consequently, deposited under oxidation voltage of 250 V.

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