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Article: Adhesion study of pulsed laser deposited hydroxyapatite coating on laser surface nitrided titanium

TitleAdhesion study of pulsed laser deposited hydroxyapatite coating on laser surface nitrided titanium
Authors
KeywordsAdhesion
Hydroxyapatite
Nitriding
Pulsed Laser Deposition
Titanium
Issue Date2009
PublisherElsevier S.A.. The Journal's web site is located at http://www.elsevier.com/locate/tsf
Citation
Thin Solid Films, 2009, v. 517 n. 18, p. 5496-5501 How to Cite?
AbstractHydroxyapatite (HA) coatings were fabricated by pulsed laser deposition (PLD) on commercially pure titanium which had been subjected to different types of pre-treatment. These include: (i) 60-grit SiC grinding, (ii) 320-grit SiC grinding, (iii) 1-μm diamond paste mirror-finishing, (iv) etching with Knoll solution, and (v) laser surface nitriding followed by selective etching. The HA coatings were pulsed laser deposited at different water-vapor pressures to determine the optimal processing conditions. The nitrided-etched specimen exhibits a three dimensional TiN dendritic network which promotes the adhesion between HA coating and titanium substrate. Among the specimens with different pre-treatments, the adhesion strength of HA is the highest for the nitrided-etched specimen, reaching about twice that for the mirror-finished specimen. Thin-film X-ray diffraction shows a high degree of crystallinity for the PLD deposited HA. According to energy-dispersive X-ray analysis, the Ca/P ratio of the deposited HA reaches an approximate value of 1.7, similar to that of the HA target. Scanning-electron microscopy reveals that the deposited HA is about 4 μm in thickness. Growth of apatite was rapidly induced on the HA coated specimens when immersed in Hanks' solution for 4 days, indicating that the PLD HA coating is highly bone bioactive. This could be partly due to the high wettability of the PLD HA surface. © 2009.
Persistent Identifierhttp://hdl.handle.net/10722/170140
ISSN
2015 Impact Factor: 1.761
2015 SCImago Journal Rankings: 0.726
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorMan, HCen_US
dc.contributor.authorChiu, KYen_US
dc.contributor.authorCheng, FTen_US
dc.contributor.authorWong, KHen_US
dc.date.accessioned2012-10-30T06:05:33Z-
dc.date.available2012-10-30T06:05:33Z-
dc.date.issued2009en_US
dc.identifier.citationThin Solid Films, 2009, v. 517 n. 18, p. 5496-5501en_US
dc.identifier.issn0040-6090en_US
dc.identifier.urihttp://hdl.handle.net/10722/170140-
dc.description.abstractHydroxyapatite (HA) coatings were fabricated by pulsed laser deposition (PLD) on commercially pure titanium which had been subjected to different types of pre-treatment. These include: (i) 60-grit SiC grinding, (ii) 320-grit SiC grinding, (iii) 1-μm diamond paste mirror-finishing, (iv) etching with Knoll solution, and (v) laser surface nitriding followed by selective etching. The HA coatings were pulsed laser deposited at different water-vapor pressures to determine the optimal processing conditions. The nitrided-etched specimen exhibits a three dimensional TiN dendritic network which promotes the adhesion between HA coating and titanium substrate. Among the specimens with different pre-treatments, the adhesion strength of HA is the highest for the nitrided-etched specimen, reaching about twice that for the mirror-finished specimen. Thin-film X-ray diffraction shows a high degree of crystallinity for the PLD deposited HA. According to energy-dispersive X-ray analysis, the Ca/P ratio of the deposited HA reaches an approximate value of 1.7, similar to that of the HA target. Scanning-electron microscopy reveals that the deposited HA is about 4 μm in thickness. Growth of apatite was rapidly induced on the HA coated specimens when immersed in Hanks' solution for 4 days, indicating that the PLD HA coating is highly bone bioactive. This could be partly due to the high wettability of the PLD HA surface. © 2009.en_US
dc.languageengen_US
dc.publisherElsevier S.A.. The Journal's web site is located at http://www.elsevier.com/locate/tsfen_US
dc.relation.ispartofThin Solid Filmsen_US
dc.subjectAdhesionen_US
dc.subjectHydroxyapatiteen_US
dc.subjectNitridingen_US
dc.subjectPulsed Laser Depositionen_US
dc.subjectTitaniumen_US
dc.titleAdhesion study of pulsed laser deposited hydroxyapatite coating on laser surface nitrided titaniumen_US
dc.typeArticleen_US
dc.identifier.emailChiu, KY:pkychiu@hkucc.hku.hken_US
dc.identifier.authorityChiu, KY=rp00379en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1016/j.tsf.2009.03.208en_US
dc.identifier.scopuseid_2-s2.0-65649143527en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-65649143527&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume517en_US
dc.identifier.issue18en_US
dc.identifier.spage5496en_US
dc.identifier.epage5501en_US
dc.identifier.isiWOS:000267182700019-
dc.publisher.placeSwitzerlanden_US
dc.identifier.scopusauthoridMan, HC=34571048800en_US
dc.identifier.scopusauthoridChiu, KY=7202988127en_US
dc.identifier.scopusauthoridCheng, FT=7202811219en_US
dc.identifier.scopusauthoridWong, KH=8380596800en_US

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