Ultrathin film coating of hydroxyapatite (HA) on a magnesium-calcium alloy using RF magnetron sputtering for bioimplant applications

Maria A. Surmeneva, Timur Mukhamedrashidovich Mukhametkaliyev, Hadis Khakbaz, Roman A. Surmenev, M. Bobby Kannan

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

A thin film of hydroxyapatite (HA) was coated on a magnesium-calcium (Mg-Ca) alloy using radio frequency (RF) magnetron sputtering. The thickness of the HA coating was in the range of 550-750 nm. In vitro degradation behaviour of the HA coated alloy was evaluated in simulated body fluid (SBF) using electrochemical methods. The ultrathin film coating has significantly improved the degradation resistant of the alloy. The polarisation resistance (Rp) of the coated alloy was more than two-order of magnitude higher and the corrosion current density (icorr) reduced by ~98% as compared to the base alloy.

Original languageEnglish
Pages (from-to)280-282
Number of pages3
JournalMaterials Letters
Volume152
DOIs
Publication statusPublished - 1 Aug 2015

Fingerprint

Calcium alloys
Ultrathin films
Durapatite
Magnesium alloys
Hydroxyapatite
Magnetron sputtering
magnesium
calcium
radio frequencies
magnetron sputtering
coatings
Coatings
Degradation
Body fluids
degradation
body fluids
Current density
Polarization
Corrosion
corrosion

Keywords

  • Biomaterials
  • Degradation
  • Hydroxyapatite
  • Magnesium alloy

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering
  • Mechanics of Materials

Cite this

Ultrathin film coating of hydroxyapatite (HA) on a magnesium-calcium alloy using RF magnetron sputtering for bioimplant applications. / Surmeneva, Maria A.; Mukhametkaliyev, Timur Mukhamedrashidovich; Khakbaz, Hadis; Surmenev, Roman A.; Bobby Kannan, M.

In: Materials Letters, Vol. 152, 01.08.2015, p. 280-282.

Research output: Contribution to journalArticle

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