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  • Ng, B. S.Sch. of Mech. and Prod. Engineering, Division of Materials Engineering, Nanyang Technol. Univ., 50 N., Singapore (författare)

Characterisation of a duplex TiO2/CaP coating on Ti6Al4V for hard tissue replacement

  • Artikel/kapitelEngelska2005

Förlag, utgivningsår, omfång ...

  • Elsevier BV,2005
  • printrdacarrier

Nummerbeteckningar

  • LIBRIS-ID:oai:DiVA.org:hj-16644
  • https://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-16644URI
  • https://doi.org/10.1016/j.biomaterials.2004.04.022DOI

Kompletterande språkuppgifter

  • Språk:engelska
  • Sammanfattning på:engelska

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Klassifikation

  • Ämneskategori:ref swepub-contenttype
  • Ämneskategori:art swepub-publicationtype

Anmärkningar

  • An initial TiO2 coating was applied on Ti6Al4V by electrochemical anodisation in two dissimilar electrolytes. The secondary calcium phosphate (CaP) coating was subsequently applied by immersing the substrates in a simulated body fluid (SBF) with three times concentration (SBF×3), mimicking biomineralisation of biological bone. Electrochemical impedance spectroscopy and potentiodynamic polarisation assessments in SBF revealed that the anodic TiO2 layer is compact, exhibiting up to four-folds improvement in in vitro corrosion resistance over unanodised Ti6Al4V. X-ray photoelectron spectroscopy analysis indicates that the anodic Ti oxide is thicker than air-formed ones with a mixture of TiO2-x compound between the TiO2/Ti interfaces. The morphology of the dense CaP film formed, when observed using scanning electron microscopy, is made up of linked globules 0.1-0.5ÎŒm in diameter without observable delamination. Fourier transform infrared spectrometry with an attenuated total internal reflection analysis revealed that this film is an amorphous/poorly crystallised calcium-deficient-carbonated CaP system. The calculated Ca:P ratios of all samples (1.14-1.28) are lower than stoichiometric hydroxyapatite (1.67). These results show that a duplex coating consisting of (1) a compact TiO2 with enhanced in vitro corrosion resistance and (2) bone-like apatite coating can be applied on Ti6Al4V by anodisation and subsequent immersion in SBF. © 2004 Elsevier Ltd. All rights reserved.

Ämnesord och genrebeteckningar

  • TEKNIK OCH TEKNOLOGIER Materialteknik hsv//swe
  • ENGINEERING AND TECHNOLOGY Materials Engineering hsv//eng
  • Biocompatibility
  • Biomimetic
  • Calcium phosphate
  • Corrosion
  • SBF
  • Titanium oxide
  • Body fluids
  • Calcium compounds
  • Characterization
  • Corrosion resistance
  • Crystallization
  • Delamination
  • Electrochemistry
  • Electrolytes
  • Fourier transform infrared spectroscopy
  • Scanning electron microscopy
  • Stoichiometry
  • Titanium oxides
  • Calcium phosphate (CaP)
  • Potentiodynamic polarization
  • Simulated body fluids (SBF)
  • Bone
  • biomaterial
  • calcium
  • carbon
  • electrolyte
  • titanium dioxide
  • biomimetic material
  • titanium
  • titanium alloy (TiAl6V4)
  • article
  • body fluid
  • bone mineralization
  • computer interface
  • concentration response
  • correlation analysis
  • cross linking
  • electrode
  • film
  • Fourier analysis
  • immersion
  • impedance
  • material coating
  • polarization
  • potentiometry
  • priority journal
  • reaction analysis
  • simulation
  • structure analysis
  • thickness
  • tissue engineering
  • tissue repair
  • X ray photoelectron spectroscopy
  • bone prosthesis
  • chemistry
  • evaluation
  • materials testing
  • surface property
  • Biomimetic Materials
  • Bone Substitutes
  • Calcium Phosphates
  • Coated Materials
  • Biocompatible
  • Surface Properties

Biuppslag (personer, institutioner, konferenser, titlar ...)

  • Annergren, I.Singapore Inst. of Mfg. Technology (författare)
  • Soutar, A. M.Singapore Inst. of Mfg. Technology (författare)
  • Khor, K. A.Sch. of Mech. and Prod. Engineering, Division of Materials Engineering, Nanyang Technol. Univ., 50 N., Singapore (författare)
  • Jarfors, A. E. W.Singapore Inst. of Mfg. Technology(Swepub:hj)jarand (författare)
  • Sch. of Mech. and Prod. Engineering, Division of Materials Engineering, Nanyang Technol. Univ., 50 N., SingaporeSingapore Inst. of Mfg. Technology (creator_code:org_t)

Sammanhörande titlar

  • Ingår i:Biomaterials: Elsevier BV26:10, s. 1087-10950142-96121878-5905

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Av författaren/redakt...
Ng, B. S.
Annergren, I.
Soutar, A. M.
Khor, K. A.
Jarfors, A. E. W ...
Om ämnet
TEKNIK OCH TEKNOLOGIER
TEKNIK OCH TEKNO ...
och Materialteknik
Artiklar i publikationen
Biomaterials
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Jönköping University

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