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Comparative investigations of structure and properties of micro-arc wollastonite-calcium phosphate coatings on titanium and zirconiumniobium alloy

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Bioactive Materials 2017年第3期2卷 177-184页

作者： M.B.Sedelnikova E.G.Komarova Yu.P.Sharkeev T.v.Tolkacheva I.A.Khlusov L.S.Litvinova K.A.Yurova v.v.shupletsova Institute of Strength Physics and Materials Science of SB RAS Academicheskii pr.2/4634055TomskRussia National Research Tomsk Polytechnic University Lenina pr.30634050TomskRussia Siberian State Medical University 2 Moskovsky tr.634050TomskRussia Immanuel Kant Baltic Federal University 14 A.Nevskogo st.236041KaliningradRussia

Investigation results of micro-arc wollastoniteecalcium phosphate(W-CaP)biocoatings on the pure titanium(Ti)and Zr-1wt.%Nb(Zr-1Nb)alloy were *** voltages of 150-300 v generate the micro-arc oxidation(MAO)process with the initial amplitude current of 150-550 A and 100-350 A for Ti and Zr-1Nb substrates,*** identical dependencies of changes of the coating thickness,surface roughness and adhesion strength on the process voltage were revealed for the both *** W-CaP coatings with the thickness of 10-11μm were formed on Ti and Zr-1Nb under the low process voltage of 130-150 *** wollastonite particles with the size in the range of 40-100μm were observed in such *** structure of the coatings on Ti was presented by the X-ray amorphous and crystalline *** X-ray reflexes relating to the crystalline phases of Ti and wollastonite were observed only in XRD patterns of the coatings deposited under 130-200 v on ***,the crystalline structure with phases of CaZr4(PO4)6,β-ZrP2O7,ZrO2,and Zr was detected in the coatings on ***-IRS,XRD,SEM,and TEM data confirmed that the increase of the process voltage to 300 v leads to the dissociation of the *** toxic effect of specimens on a viability,morphology and motility of human adipose-derived multipotent mesenchymal stem cells was revealed in vitro.

关键词： Micro-arc oxidation Biocoatings Calcium phosphate Wollastonite

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