Influence of thermal treatment on the roughness, corrosion resistance and wettability of hydroxyapatite films deposited by RF magnetron sputtering

Abstract

In this paper we report on the preparation and characterization of hydroxyapatite coatings deposited on Ti6Al4V alloy by magnetron sputtering deposition method. The amorphous deposited coatings were thermal annealed in a flux of dry nitrogen and water vapours at 800 °C for 30 and 120 minutes, in order to investigate the effect of this treatment on surface roughness, corrosion resistance and wettability. The films were characterized by surface profilometry, electrochemical tests and contact angle measurements. After annealing, the hydroxyapatite coatings became crystalline, exhibiting rougher surfaces, higher corrosion resistance and lower contact angles. We have demonstrated that the hydroxyapatite coating annealed at 800°C for 30 minutes represents a good candidate to be used for medical implants, due to its superior corrosion behaviour and good wettability.

Original language	English
Pages (from-to)	297-302
Number of pages	6
Journal	Key Engineering Materials
Volume	587
DOIs	https://doi.org/10.4028/www.scientific.net/KEM.587.297
Publication status	Published - 1 Jan 2014
Externally published	Yes
Event	25th Symposium and Annual Meeting of the International Society for Ceramics in Medicine, ISCM 2013 - Bucharest, Romania Duration: 7 Nov 2013 → 10 Nov 2013

Keywords

Contact angle
Corrosion resistance
Hydroxyapatite coatings
Magnetron sputtering
Roughness

ASJC Scopus subject areas

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

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Influence of thermal treatment on the roughness, corrosion resistance and wettability of hydroxyapatite films deposited by RF magnetron sputtering. / Dinu, M.; Kiss, A. E.; Parau, A. C.; Braic, V.; Vitelaru, C.; Braic, M.; Pana, I.; Balaceanu, M.; Vladescu, A.

In: Key Engineering Materials, Vol. 587, 01.01.2014, p. 297-302.

Research output: Contribution to journal › Conference article › peer-review

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title = "Influence of thermal treatment on the roughness, corrosion resistance and wettability of hydroxyapatite films deposited by RF magnetron sputtering",

abstract = "In this paper we report on the preparation and characterization of hydroxyapatite coatings deposited on Ti6Al4V alloy by magnetron sputtering deposition method. The amorphous deposited coatings were thermal annealed in a flux of dry nitrogen and water vapours at 800 °C for 30 and 120 minutes, in order to investigate the effect of this treatment on surface roughness, corrosion resistance and wettability. The films were characterized by surface profilometry, electrochemical tests and contact angle measurements. After annealing, the hydroxyapatite coatings became crystalline, exhibiting rougher surfaces, higher corrosion resistance and lower contact angles. We have demonstrated that the hydroxyapatite coating annealed at 800°C for 30 minutes represents a good candidate to be used for medical implants, due to its superior corrosion behaviour and good wettability.",

keywords = "Contact angle, Corrosion resistance, Hydroxyapatite coatings, Magnetron sputtering, Roughness",

author = "M. Dinu and Kiss, {A. E.} and Parau, {A. C.} and V. Braic and C. Vitelaru and M. Braic and I. Pana and M. Balaceanu and A. Vladescu",

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AU - Dinu, M.

AU - Kiss, A. E.

AU - Parau, A. C.

AU - Braic, V.

AU - Vitelaru, C.

AU - Braic, M.

AU - Pana, I.

AU - Balaceanu, M.

AU - Vladescu, A.

PY - 2014/1/1

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N2 - In this paper we report on the preparation and characterization of hydroxyapatite coatings deposited on Ti6Al4V alloy by magnetron sputtering deposition method. The amorphous deposited coatings were thermal annealed in a flux of dry nitrogen and water vapours at 800 °C for 30 and 120 minutes, in order to investigate the effect of this treatment on surface roughness, corrosion resistance and wettability. The films were characterized by surface profilometry, electrochemical tests and contact angle measurements. After annealing, the hydroxyapatite coatings became crystalline, exhibiting rougher surfaces, higher corrosion resistance and lower contact angles. We have demonstrated that the hydroxyapatite coating annealed at 800°C for 30 minutes represents a good candidate to be used for medical implants, due to its superior corrosion behaviour and good wettability.

AB - In this paper we report on the preparation and characterization of hydroxyapatite coatings deposited on Ti6Al4V alloy by magnetron sputtering deposition method. The amorphous deposited coatings were thermal annealed in a flux of dry nitrogen and water vapours at 800 °C for 30 and 120 minutes, in order to investigate the effect of this treatment on surface roughness, corrosion resistance and wettability. The films were characterized by surface profilometry, electrochemical tests and contact angle measurements. After annealing, the hydroxyapatite coatings became crystalline, exhibiting rougher surfaces, higher corrosion resistance and lower contact angles. We have demonstrated that the hydroxyapatite coating annealed at 800°C for 30 minutes represents a good candidate to be used for medical implants, due to its superior corrosion behaviour and good wettability.

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KW - Corrosion resistance

KW - Hydroxyapatite coatings

KW - Magnetron sputtering

KW - Roughness

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