Influence of process parameters on plasma electrolytic surface treatment of tantalum for biomedical applications / Sowa Maciej,Woszczak Maja,Kazek-Kesik Alicja,Dercz Grzegorz,Korotin Danila M.,Zhidkov Ivan S.,Kurmaev Ernst Z.,Cholakh Seif O.,Basiaga Marcin,Simka Wojciech // APPLIED SURFACE SCIENCE. - 2017. - V. 407, l. . - P. 52-63.

ISSN/EISSN:

0169-4332 / 1873-5584

Type:

Article

Abstract:

This work aims to quantify the effect of anodization voltage and electrolyte composition used during DC plasma electrolytic oxidation (PEO), operated as a 2-step process, on the surface properties of the resulting oxide coatings on tantalum. The first step consisted of galvanostatic anodization (150 mA cm(-2)) of the tantalum workpiece up to several limiting voltages (200, 300, 400 and 500 V). After attaining the limiting voltage, the process was switched to voltage control, which resulted in a gradual decrease of the anodic current density. The anodic treatment was realized in a 0.5 M Ca(H2PO2)(2) solution, which was then modified by the addition of 1.15 M Ca(HCOO)(2) as well as 1.15 M and 1.5 M Mg(CH3COO)(2). The increasing voltage of anodization led to the formation of thicker coatings, with larger pores and enriched with electrolytes species to a higher extent. The solutions containing HCOO- and CH3COO- ions caused the formation of coatings which were slightly hydrophobic (high contact angle). In the case of the samples anodized up to 500 V, scattered crystalline deposits were observed. Bioactive phases, such as hydroxyapatite, were detected in the treated oxide coatings by XRD and XPS. (C) 2017 Elsevier B.V. All rights reserved.

Author keywords:

Tantalum; Anodization; Plasma electrolytic oxidation; Biomaterials; Calcium phosphates; Surface characterization MICRO-ARC OXIDATION; METALLIC ALLOYS; BONE INGROWTH; TITANIUM; CORROSION; MAGNESIUM; MECHANISMS; RESPONSES; IMPLANTS; BEHAVIOR

DOI:

10.1016/j.apsusc.2017.02.170

Web of Science ID:

ISI:000399507700008

Соавторы в МНС:

Другие поля

Поле	Значение
Month	JUN 15
Publisher	ELSEVIER SCIENCE BV
Address	PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Language	English
EISSN	1873-5584
Keywords-Plus	MICRO-ARC OXIDATION; METALLIC ALLOYS; BONE INGROWTH; TITANIUM; CORROSION; MAGNESIUM; MECHANISMS; RESPONSES; IMPLANTS; BEHAVIOR
Research-Areas	Chemistry; Materials Science; Physics
Web-of-Science-Categories	Chemistry, Physical; Materials Science, Coatings \& Films; Physics, Applied; Physics, Condensed Matter
Author-Email	maciej.sowa@polsl.pl wojciech.simka@polsl.pl
ResearcherID-Numbers	Zhidkov, Ivan/L-3543-2013
ORCID-Numbers	Zhidkov, Ivan/0000-0001-8727-4730 Cholakh, Seif/0000-0002-9313-6614 Dercz, Grzegorz/0000-0003-3682-7184
Funding-Acknowledgement	Polish Ministry of Science and Higher Education under ``Diamond Grant{''} program {[}DI 2012 024142]; Rector's Grant {[}04/010/RGJ17/0051-01]; FASO of Russia {[}01201463326]; Government of Russian Federation {[}02.A03.21.0006]; Russian Foundation for Basic Research {[}17-02-00005]; {[}MK-1145.2017.2]
Funding-Text	This work was supported by the Polish Ministry of Science and Higher Education under the ``Diamond Grant{''} program (project no. DI 2012 024142) and by Rector's Grant (project no. 04/010/RGJ17/0051-01). The partial support of the FASO of Russia (theme ``Electron{''} No. 01201463326), Government of Russian Federation (Act 211, agreement No 02.A03.21.0006), the Russian Foundation for Basic Research (Project 17-02-00005) and President of Russia (Grant No. MK-1145.2017.2) are also gratefully acknowledged. Special thanks are devoted to the Institute of Materials Science of Silesian University of Technology for the permission to use the Hitachi S-3400N SEM in the investigations.
Number-of-Cited-References	47
Usage-Count-Last-180-days	25
Usage-Count-Since-2013	42
Journal-ISO	Appl. Surf. Sci.
Doc-Delivery-Number	ES4LV