XPS and GDOES Characterization of Porous Coating Enriched with Copper and Calcium Obtained on Tantalum via Plasma Electrolytic Oxidation

Krzysztof Rokosz; Tadeusz Hryniewicz; Patrick Chapon; Steinar Raaen; Hugo Ricardo Zschommler Sandim

doi:10.1155/2016/7093071

Journal of Spectroscopy (Jan 2016)

XPS and GDOES Characterization of Porous Coating Enriched with Copper and Calcium Obtained on Tantalum via Plasma Electrolytic Oxidation

Krzysztof Rokosz,
Tadeusz Hryniewicz,
Patrick Chapon,
Steinar Raaen,
Hugo Ricardo Zschommler Sandim

Affiliations

Krzysztof Rokosz: Division of Bioengineering and Surface Electrochemistry, Department of Engineering and Informatics Systems, Faculty of Mechanical Engineering, Koszalin University of Technology, Racławicka 15-17, 75-620 Koszalin, Poland
Tadeusz Hryniewicz: Division of Bioengineering and Surface Electrochemistry, Department of Engineering and Informatics Systems, Faculty of Mechanical Engineering, Koszalin University of Technology, Racławicka 15-17, 75-620 Koszalin, Poland
Patrick Chapon: HORIBA Jobin Yvon S.A.S., 16-18 rue du Canal, 91165 Longjumeau Cedex, France
Steinar Raaen: Department of Physics, Norwegian University of Science and Technology (NTNU), Realfagbygget E3-124 Høgskoleringen 5, 7491 Trondheim, Norway
Hugo Ricardo Zschommler Sandim: Department of Materials Engineering, Lorena School of Engineering, University of Sao Paulo, 12602-810 Lorena, SP, Brazil

DOI: https://doi.org/10.1155/2016/7093071
Journal volume & issue: Vol. 2016

Abstract

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XPS and GDOES characterizations of porous coatings on tantalum after Plasma Electrolytic Oxidation (PEO) at 450 V for 3 minutes in electrolyte containing concentrated (85%) phosphoric acid with calcium nitrate and copper (II) nitrate are described. Based on the obtained data, it may be concluded that the PEO coating consists of tantalum (Ta5+), calcium (Ca2+), copper (Cu2+ and Cu+), and phosphates (PO43-). It has to be pointed out that copper and calcium are distributed throughout the volume. The authors also propose a new model of PEO, based on the derivative of GDOES signals with sputtering time.

Published in Journal of Spectroscopy

ISSN: 2314-4920 (Print); 2314-4939 (Online)
Publisher: Hindawi Limited
Country of publisher: United Kingdom
LCC subjects: Science: Physics: Optics. Light
Website: https://www.hindawi.com/journals/jspec/

About the journal