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Conference Paper: Fabrication, nanomechanical properties and in vitro evaluation of (Ti, o)/Ti composite coating on NiTi shape memory alloy

TitleFabrication, nanomechanical properties and in vitro evaluation of (Ti, o)/Ti composite coating on NiTi shape memory alloy
Authors
Keywordsbiocompatibility
mechanical properties
NiTi shape memory alloy
plasma immersion ion implantation and deposition
surface modification
Issue Date2010
PublisherSpringer.
Citation
The 6th World Congress of Biomechanics (WCB 2010) in conjunction with 14th International Conference on Biomedical Engineering (ICBME) and 5th Asia Pacific Conference on Biomechanics (APBiomech), Singapore, 1-6 August 2010. In IFMBE Proceedings, 2010, v. 31, p. 1222-1225 How to Cite?
AbstractIn this investigation, to improve the long-term biocompatibility, bioactivity and mechanical properties of NiTi shape memory alloy (SMA), a sufficiently thick (Ti, O)/Ti composite coating (about 1.2 micron in thickness) was fabricated on NiTi SMA substrate using the plasma immersion ion implantation and deposition (PIIID) technique. Cross-sectional morphology of the composite coating was observed using scanning electron microscopy (SEM) and its thickness was evaluated by energy dispersive X-ray spectroscopy (EDX). X-ray diffraction (XRD) results showed that there were no diffraction peaks corresponding to TiO2 for the (Ti, O)/Ti composite coating, indicating that the (Ti, O) layer existed in the amorphous or nano-sized or poorly crystalline state in the composite coating. Nanohardness and elastic modulus of the composite coating were determined via nanoindentation tests. Pin-on-disc wear test results showed improved wear resistance of (Ti, O)/Ti coated NiTi SMA. For in vitro biological assessment of the composite coating, SaOS-2 osteoblast-like cells were cultured on coated and uncoated NiTi SMA samples. SaOS-2 cells seeded on (Ti, O)/Ti coated samples spread and adhered better than on uncoated samples. © 2010 International Federation for Medical and Biological Engineering.
Persistent Identifierhttp://hdl.handle.net/10722/140330
ISBN
ISSN
References

 

DC FieldValueLanguage
dc.contributor.authorSun, Ten_HK
dc.contributor.authorWang, LPen_HK
dc.contributor.authorWang, Men_HK
dc.contributor.authorTong, HWen_HK
dc.contributor.authorLu, WWen_HK
dc.date.accessioned2011-09-23T06:10:25Z-
dc.date.available2011-09-23T06:10:25Z-
dc.date.issued2010en_HK
dc.identifier.citationThe 6th World Congress of Biomechanics (WCB 2010) in conjunction with 14th International Conference on Biomedical Engineering (ICBME) and 5th Asia Pacific Conference on Biomechanics (APBiomech), Singapore, 1-6 August 2010. In IFMBE Proceedings, 2010, v. 31, p. 1222-1225en_HK
dc.identifier.isbn978-354079038-9-
dc.identifier.issn1680-0737en_HK
dc.identifier.urihttp://hdl.handle.net/10722/140330-
dc.description.abstractIn this investigation, to improve the long-term biocompatibility, bioactivity and mechanical properties of NiTi shape memory alloy (SMA), a sufficiently thick (Ti, O)/Ti composite coating (about 1.2 micron in thickness) was fabricated on NiTi SMA substrate using the plasma immersion ion implantation and deposition (PIIID) technique. Cross-sectional morphology of the composite coating was observed using scanning electron microscopy (SEM) and its thickness was evaluated by energy dispersive X-ray spectroscopy (EDX). X-ray diffraction (XRD) results showed that there were no diffraction peaks corresponding to TiO2 for the (Ti, O)/Ti composite coating, indicating that the (Ti, O) layer existed in the amorphous or nano-sized or poorly crystalline state in the composite coating. Nanohardness and elastic modulus of the composite coating were determined via nanoindentation tests. Pin-on-disc wear test results showed improved wear resistance of (Ti, O)/Ti coated NiTi SMA. For in vitro biological assessment of the composite coating, SaOS-2 osteoblast-like cells were cultured on coated and uncoated NiTi SMA samples. SaOS-2 cells seeded on (Ti, O)/Ti coated samples spread and adhered better than on uncoated samples. © 2010 International Federation for Medical and Biological Engineering.en_HK
dc.languageengen_US
dc.publisherSpringer.en_US
dc.relation.ispartofIFMBE Proceedingsen_HK
dc.rightsThe original publication is available at www.springerlink.comen_US
dc.subjectbiocompatibilityen_HK
dc.subjectmechanical propertiesen_HK
dc.subjectNiTi shape memory alloyen_HK
dc.subjectplasma immersion ion implantation and depositionen_HK
dc.subjectsurface modificationen_HK
dc.titleFabrication, nanomechanical properties and in vitro evaluation of (Ti, o)/Ti composite coating on NiTi shape memory alloyen_HK
dc.typeConference_Paperen_HK
dc.identifier.emailWang, M:memwang@hku.hken_HK
dc.identifier.emailLu, WW:wwlu@hku.hken_HK
dc.identifier.authorityWang, M=rp00185en_HK
dc.identifier.authorityLu, WW=rp00411en_HK
dc.description.naturelink_to_OA_fulltext-
dc.identifier.doi10.1007/978-3-642-14515-5_310en_HK
dc.identifier.scopuseid_2-s2.0-77957995051en_HK
dc.identifier.hkuros194001en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-77957995051&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume31 IFMBEen_HK
dc.identifier.spage1222en_HK
dc.identifier.epage1225en_HK
dc.publisher.placeGermany-
dc.description.otherThe 6th World Congress of Biomechanics (WCB 2010) in conjunction with 14th International Conference on Biomedical Engineering (ICBME) and 5th Asia Pacific Conference on Biomechanics (APBiomech), Singapore, 1-6 August 2010. In IFMBE Proceedings, 2010, v. 31, p. 1222-1225-
dc.identifier.scopusauthoridSun, T=7402922748en_HK
dc.identifier.scopusauthoridWang, LP=36166042100en_HK
dc.identifier.scopusauthoridWang, M=15749714100en_HK
dc.identifier.scopusauthoridTong, HW=23476100900en_HK
dc.identifier.scopusauthoridLu, WW=7404215221en_HK

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