Comparative study of the radio-frequency magnetron sputter deposited CaP films fabricated onto acid-etched or pulsed electron beam-treated titanium

M. A. Surmeneva, R. A. Surmenev, A. I. Tyurin, Timur Mukhamedrashidovich Mukhametkaliyev, A. D. Teresov, Nikolay Nikolaevich Koval, T. S. Pirozhkova, I. A. Shuvarin, C. Oehr

Research output: Contribution to journalArticle

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Abstract

This study investigated the effect of the substrate morphology introduced by various substrate preparation techniques, namely acid etching (AE) and pulsed electron beam (PEB) treatments, on the CaP film morphology and mechanical properties. The morphology, nanohardness, and Young's modulus of the CaP coating deposited via radio-frequency (RF) magnetron sputtering were investigated by X-ray photoelectron spectroscopy (XPS), atomic force microscope (AFM), scanning electron microscopy and nanoindentation studies. The Ca/P ratios of the CaP coating deposited via RF magnetron sputtering onto titanium substrates treated using AE and PEB according to XPS were 1.73 ± 0.03 and 1.72 ± 0.04, respectively, which is close to the Ca/P ratio of 1.67 typical for stoichiometric hydroxyapatite (HA). The AFM experiments and nanoindentation studies revealed significant differences in the morphology and mechanical responses of the CaP films deposited onto acid-etched titanium substrates treated with PEB. Deposition of the CaP coating onto the acid-etched surface resulted in a rough surface with the presence of an island-like morphology. The CaP coating onto a smooth titanium substrate treated by PEB exhibited grains with irregular shapes and decreased size. The nanoindentation hardness and the Young's modulus of the HA coating deposited onto titanium treated by the PEB treatment were determined to be 7.0 ± 0.3 and 124 ± 3 GPa, respectively, which are significantly higher than those of the CaP coating on the acid-etched titanium substrates. Moreover, the elastic strain to failure (H/E), the plastic deformation resistance (H3/E2), and the percent elastic recovery %R of the HA coating on titanium after surface irradiation with an electron energy density of 15 J·cm- 2 were determined to increase by ~ 23%, ~ 70% and ~ 53%, respectively, compared to the CaP coating on acid-etched titanium.

Original languageEnglish
Pages (from-to)218-224
Number of pages7
JournalThin Solid Films
Volume571
Issue numberP1
DOIs
Publication statusPublished - 1 Jan 2014

Fingerprint

Titanium
Electron beams
radio frequencies
titanium
electron beams
coatings
Coatings
acids
Acids
Substrates
Nanoindentation
Durapatite
nanoindentation
Hydroxyapatite
Magnetron sputtering
Etching
modulus of elasticity
magnetron sputtering
Microscopes
X ray photoelectron spectroscopy

Keywords

  • Acid etching
  • Calcium phosphate
  • Coatings
  • Electron beam treatment
  • Hydroxyapatite
  • Radio-frequency magnetron sputtering
  • Substrate preparation
  • Titanium

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry
  • Metals and Alloys
  • Surfaces, Coatings and Films
  • Surfaces and Interfaces

Cite this

Comparative study of the radio-frequency magnetron sputter deposited CaP films fabricated onto acid-etched or pulsed electron beam-treated titanium. / Surmeneva, M. A.; Surmenev, R. A.; Tyurin, A. I.; Mukhametkaliyev, Timur Mukhamedrashidovich; Teresov, A. D.; Koval, Nikolay Nikolaevich; Pirozhkova, T. S.; Shuvarin, I. A.; Oehr, C.

In: Thin Solid Films, Vol. 571, No. P1, 01.01.2014, p. 218-224.

Research output: Contribution to journalArticle

Surmeneva, M. A. ; Surmenev, R. A. ; Tyurin, A. I. ; Mukhametkaliyev, Timur Mukhamedrashidovich ; Teresov, A. D. ; Koval, Nikolay Nikolaevich ; Pirozhkova, T. S. ; Shuvarin, I. A. ; Oehr, C. / Comparative study of the radio-frequency magnetron sputter deposited CaP films fabricated onto acid-etched or pulsed electron beam-treated titanium. In: Thin Solid Films. 2014 ; Vol. 571, No. P1. pp. 218-224.
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abstract = "This study investigated the effect of the substrate morphology introduced by various substrate preparation techniques, namely acid etching (AE) and pulsed electron beam (PEB) treatments, on the CaP film morphology and mechanical properties. The morphology, nanohardness, and Young's modulus of the CaP coating deposited via radio-frequency (RF) magnetron sputtering were investigated by X-ray photoelectron spectroscopy (XPS), atomic force microscope (AFM), scanning electron microscopy and nanoindentation studies. The Ca/P ratios of the CaP coating deposited via RF magnetron sputtering onto titanium substrates treated using AE and PEB according to XPS were 1.73 ± 0.03 and 1.72 ± 0.04, respectively, which is close to the Ca/P ratio of 1.67 typical for stoichiometric hydroxyapatite (HA). The AFM experiments and nanoindentation studies revealed significant differences in the morphology and mechanical responses of the CaP films deposited onto acid-etched titanium substrates treated with PEB. Deposition of the CaP coating onto the acid-etched surface resulted in a rough surface with the presence of an island-like morphology. The CaP coating onto a smooth titanium substrate treated by PEB exhibited grains with irregular shapes and decreased size. The nanoindentation hardness and the Young's modulus of the HA coating deposited onto titanium treated by the PEB treatment were determined to be 7.0 ± 0.3 and 124 ± 3 GPa, respectively, which are significantly higher than those of the CaP coating on the acid-etched titanium substrates. Moreover, the elastic strain to failure (H/E), the plastic deformation resistance (H3/E2), and the percent elastic recovery {\%}R of the HA coating on titanium after surface irradiation with an electron energy density of 15 J·cm- 2 were determined to increase by ~ 23{\%}, ~ 70{\%} and ~ 53{\%}, respectively, compared to the CaP coating on acid-etched titanium.",
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AU - Surmenev, R. A.

AU - Tyurin, A. I.

AU - Mukhametkaliyev, Timur Mukhamedrashidovich

AU - Teresov, A. D.

AU - Koval, Nikolay Nikolaevich

AU - Pirozhkova, T. S.

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AB - This study investigated the effect of the substrate morphology introduced by various substrate preparation techniques, namely acid etching (AE) and pulsed electron beam (PEB) treatments, on the CaP film morphology and mechanical properties. The morphology, nanohardness, and Young's modulus of the CaP coating deposited via radio-frequency (RF) magnetron sputtering were investigated by X-ray photoelectron spectroscopy (XPS), atomic force microscope (AFM), scanning electron microscopy and nanoindentation studies. The Ca/P ratios of the CaP coating deposited via RF magnetron sputtering onto titanium substrates treated using AE and PEB according to XPS were 1.73 ± 0.03 and 1.72 ± 0.04, respectively, which is close to the Ca/P ratio of 1.67 typical for stoichiometric hydroxyapatite (HA). The AFM experiments and nanoindentation studies revealed significant differences in the morphology and mechanical responses of the CaP films deposited onto acid-etched titanium substrates treated with PEB. Deposition of the CaP coating onto the acid-etched surface resulted in a rough surface with the presence of an island-like morphology. The CaP coating onto a smooth titanium substrate treated by PEB exhibited grains with irregular shapes and decreased size. The nanoindentation hardness and the Young's modulus of the HA coating deposited onto titanium treated by the PEB treatment were determined to be 7.0 ± 0.3 and 124 ± 3 GPa, respectively, which are significantly higher than those of the CaP coating on the acid-etched titanium substrates. Moreover, the elastic strain to failure (H/E), the plastic deformation resistance (H3/E2), and the percent elastic recovery %R of the HA coating on titanium after surface irradiation with an electron energy density of 15 J·cm- 2 were determined to increase by ~ 23%, ~ 70% and ~ 53%, respectively, compared to the CaP coating on acid-etched titanium.

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