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Article: Fabrication of an apatite/collagen composite coating on the NiTi shape memory alloy through electrochemical deposition and coating characterisation

TitleFabrication of an apatite/collagen composite coating on the NiTi shape memory alloy through electrochemical deposition and coating characterisation
Authors
KeywordsCoating
Medical
Shape memory alloys
Issue Date2009
PublisherTrans Tech Publications Ltd. The Journal's web site is located at http://www.scientific.net
Citation
Materials Science Forum, 2009, v. 618-619, p. 319-323 How to Cite?
AbstractTo improve the biocompatibility and bioactivity of NiTi shape memory alloy (SMA), apatite/collagen composite coatings were fabricated on the surface of NiTi SMA at room temperature using the electrochemical deposition technique. Spherical apatite particles and fibrous collagen that formed the composite coating were visible under scanning electron microscope (SEM). The Ca/P ratio of the apatite component in the coating, as determined by energy dispersive X-ray spectroscopy (EDX), was about 1.38 which is slightly higher than that of octocalcium phosphate (OCP). X-ray diffraction result showed that the apatite was amorphous, which was due to the low temperature (i.e., room temperature) deposition process. The structure of the composite coatings was further characterized using Fourier transform infrared reflection spectroscopy (FTIR). It was also found that, compared to bare NiTi SMA samples, the wettability of as-deposited samples was increased because of the formation of the composite coating. © (2009) Trans Tech Publications, Switzerland.
Persistent Identifierhttp://hdl.handle.net/10722/129265
ISSN
2005 Impact Factor: 0.399
References

 

DC FieldValueLanguage
dc.contributor.authorSun, Ten_HK
dc.contributor.authorWong, JHWen_HK
dc.contributor.authorWang, Men_HK
dc.date.accessioned2010-12-23T08:34:25Z-
dc.date.available2010-12-23T08:34:25Z-
dc.date.issued2009en_HK
dc.identifier.citationMaterials Science Forum, 2009, v. 618-619, p. 319-323en_HK
dc.identifier.issn0255-5476en_HK
dc.identifier.urihttp://hdl.handle.net/10722/129265-
dc.description.abstractTo improve the biocompatibility and bioactivity of NiTi shape memory alloy (SMA), apatite/collagen composite coatings were fabricated on the surface of NiTi SMA at room temperature using the electrochemical deposition technique. Spherical apatite particles and fibrous collagen that formed the composite coating were visible under scanning electron microscope (SEM). The Ca/P ratio of the apatite component in the coating, as determined by energy dispersive X-ray spectroscopy (EDX), was about 1.38 which is slightly higher than that of octocalcium phosphate (OCP). X-ray diffraction result showed that the apatite was amorphous, which was due to the low temperature (i.e., room temperature) deposition process. The structure of the composite coatings was further characterized using Fourier transform infrared reflection spectroscopy (FTIR). It was also found that, compared to bare NiTi SMA samples, the wettability of as-deposited samples was increased because of the formation of the composite coating. © (2009) Trans Tech Publications, Switzerland.en_HK
dc.languageengen_US
dc.publisherTrans Tech Publications Ltd. The Journal's web site is located at http://www.scientific.neten_HK
dc.relation.ispartofMaterials Science Forumen_HK
dc.subjectCoatingen_HK
dc.subjectMedicalen_HK
dc.subjectShape memory alloysen_HK
dc.titleFabrication of an apatite/collagen composite coating on the NiTi shape memory alloy through electrochemical deposition and coating characterisationen_HK
dc.typeArticleen_HK
dc.identifier.emailWang, M:memwang@hku.hken_HK
dc.identifier.authorityWang, M=rp00185en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.4028/www.scientific.net/MSF.618-619.319en_HK
dc.identifier.scopuseid_2-s2.0-70349482823en_HK
dc.identifier.hkuros177529en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-70349482823&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume618 619en_HK
dc.identifier.spage319en_HK
dc.identifier.epage323en_HK
dc.publisher.placeSwitzerlanden_HK
dc.identifier.scopusauthoridSun, T=7402922748en_HK
dc.identifier.scopusauthoridWong, JHW=35390206700en_HK
dc.identifier.scopusauthoridWang, M=15749714100en_HK

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