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

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

Бібліографічні деталі
Parent link:Bioactive Materials
Vol. 2, iss. 3.— 2017.— [P. 177-184]
Співавтори: Национальный исследовательский Томский политехнический университет Исследовательская школа физики высокоэнергетических процессов, Национальный исследовательский Томский политехнический университет Исследовательская школа химических и биомедицинских технологий (ИШХБМТ)
Інші автори: Sedelnikova M. B. Mariya Borisovna, Komarova E. G. Elena Gennadjevna, Sharkeev Yu. P. Yury Petrovich, Tolkacheva T. V. Tatjyana Viktorovna, Khlusov I. A. Igor Albertovich, Litvinova L. S. Larisa Sergeevna, Yurova K. A. Kristina Alekseevna, Shupletsova V. V. Valeria Vladimirovna
Резюме:Title screen
Investigation results of micro-arc wollastonite–calcium phosphate (W–CaP) biocoatings on the pure titanium (Ti) and Zr–1wt.%Nb (Zr–1Nb) alloy were presented. The 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, respectively. The identical dependencies of changes of the coating thickness, surface roughness and adhesion strength on the process voltage were revealed for the both substrates. The W–CaP coatings with the thickness of 10–11 ?m were formed on Ti and Zr–1Nb under the low process voltage of 130–150 V. Elongated wollastonite particles with the size in the range of 40–100 ?m were observed in such coatings. The structure of the coatings on Ti was presented by the X–ray amorphous and crystalline phases. The 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 Ti. While, the crystalline structure with phases of CaZr4(PO4)6, ?–ZrP2O7, ZrO2, and Zr was detected in the coatings on Zr–1Nb. FT–IRS, XRD, SEM, and TEM data confirmed that the increase of the process voltage to 300 V leads to the dissociation of the wollastonite. No toxic effect of specimens on a viability, morphology and motility of human adipose–derived multipotent mesenchymal stem cells was revealed in vitro.
Опубліковано: 2017
Предмети:
электронный ресурс
труды учёных ТПУ
micro-arc oxidation
biocoatings
calcium phosphate
wollastonite
фосфат кальция
волластонит
Онлайн доступ:https://doi.org/10.1016/j.bioactmat.2017.01.002
Формат: Електронний ресурс Частина з книги
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=659545

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