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Conference Paper: New plasma surface-treated memory alloys: Towards a new generation of "smart" orthopaedic materials

TitleNew plasma surface-treated memory alloys: Towards a new generation of "smart" orthopaedic materials
Authors
KeywordsCorrosion resistance
NiTi
Plasma immersion ion implantation
Issue Date2008
PublisherElsevier SA. The Journal's web site is located at http://www.elsevier.com/locate/msec
Citation
Advanced Processing of Biomaterials Symposium, Materials Science and Technology Conference and Exhibition, Cincinnati, Ohio, USA, 15–19 October 2006. In Materials Science And Engineering C, 2008, v. 28 n. 3, p. 454-459 How to Cite?
AbstractThis paper describes the corrosion resistance, surface mechanical properties, cyto-compatibility, and in-vivo performance of plasma-treated and untreated NiTi samples. Nickel-titanium discs containing 50.8% Ni were treated by nitrogen and carbon plasma immersion ion implantation (PIII). After nitrogen plasma treatment, a layer of stable titanium nitride is formed on the NiTi surface. Titanium carbide is also found at the surface after carbon plasma implantation. Compared to the untreated samples, the corrosion resistances of the plasma PIII samples are better by a factor of five and the surface hardness and elastic modulus are better by a factor of two. The concentration of Ni leached into the simulated body fluids from the untreated samples is 30 ppm, whereas that from the plasma-treated PIII are undetectable. Although there is no significant difference in the ability of cells to grow on either surface, bone formation is found to be better on the nitrogen and carbon PIII sample surfaces at post-operation 2 weeks. All these improvements can be attributed to the formation of titanium nitride and titanium carbide on the surface. © 2007 Elsevier B.V. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/68265
ISSN
2015 Impact Factor: 3.42
2015 SCImago Journal Rankings: 1.332
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorYeung, KWKen_HK
dc.contributor.authorChan, YLen_HK
dc.contributor.authorLam, KOen_HK
dc.contributor.authorLiu, XMen_HK
dc.contributor.authorWu, SLen_HK
dc.contributor.authorLiu, XYen_HK
dc.contributor.authorChung, CYen_HK
dc.contributor.authorLu, WWen_HK
dc.contributor.authorChan, Den_HK
dc.contributor.authorLuk, KDKen_HK
dc.contributor.authorChu, PKen_HK
dc.contributor.authorCheung, KMCen_HK
dc.date.accessioned2010-09-06T06:02:56Z-
dc.date.available2010-09-06T06:02:56Z-
dc.date.issued2008en_HK
dc.identifier.citationAdvanced Processing of Biomaterials Symposium, Materials Science and Technology Conference and Exhibition, Cincinnati, Ohio, USA, 15–19 October 2006. In Materials Science And Engineering C, 2008, v. 28 n. 3, p. 454-459en_HK
dc.identifier.issn0928-4931en_HK
dc.identifier.urihttp://hdl.handle.net/10722/68265-
dc.description.abstractThis paper describes the corrosion resistance, surface mechanical properties, cyto-compatibility, and in-vivo performance of plasma-treated and untreated NiTi samples. Nickel-titanium discs containing 50.8% Ni were treated by nitrogen and carbon plasma immersion ion implantation (PIII). After nitrogen plasma treatment, a layer of stable titanium nitride is formed on the NiTi surface. Titanium carbide is also found at the surface after carbon plasma implantation. Compared to the untreated samples, the corrosion resistances of the plasma PIII samples are better by a factor of five and the surface hardness and elastic modulus are better by a factor of two. The concentration of Ni leached into the simulated body fluids from the untreated samples is 30 ppm, whereas that from the plasma-treated PIII are undetectable. Although there is no significant difference in the ability of cells to grow on either surface, bone formation is found to be better on the nitrogen and carbon PIII sample surfaces at post-operation 2 weeks. All these improvements can be attributed to the formation of titanium nitride and titanium carbide on the surface. © 2007 Elsevier B.V. All rights reserved.en_HK
dc.languageengen_HK
dc.publisherElsevier SA. The Journal's web site is located at http://www.elsevier.com/locate/msecen_HK
dc.relation.ispartofMaterials Science and Engineering Cen_HK
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Materials Science and Engineering C: Biomimetic Materials, Sensors and Systems. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Materials Science and Engineering C: Biomimetic Materials, Sensors and Systems, 2008, v. 28 n. 3, p. 454-459. DOI: 10.1016/j.msec.2007.04.023-
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subjectCorrosion resistanceen_HK
dc.subjectNiTien_HK
dc.subjectPlasma immersion ion implantationen_HK
dc.titleNew plasma surface-treated memory alloys: Towards a new generation of "smart" orthopaedic materialsen_HK
dc.typeConference_Paperen_HK
dc.identifier.emailYeung, KWK:wkkyeung@hkucc.hku.hken_HK
dc.identifier.emailLu, WW:wwlu@hku.hken_HK
dc.identifier.emailChan, D:chand@hkucc.hku.hken_HK
dc.identifier.emailLuk, KDK:hcm21000@hku.hken_HK
dc.identifier.emailCheung, KMC:cheungmc@hku.hken_HK
dc.identifier.authorityYeung, KWK=rp00309en_HK
dc.identifier.authorityLu, WW=rp00411en_HK
dc.identifier.authorityChan, D=rp00540en_HK
dc.identifier.authorityLuk, KDK=rp00333en_HK
dc.identifier.authorityCheung, KMC=rp00387en_HK
dc.description.naturepostprint-
dc.identifier.doi10.1016/j.msec.2007.04.023en_HK
dc.identifier.scopuseid_2-s2.0-39749122217en_HK
dc.identifier.hkuros145952en_HK
dc.identifier.hkuros215836-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-39749122217&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume28en_HK
dc.identifier.issue3en_HK
dc.identifier.spage454en_HK
dc.identifier.epage459en_HK
dc.identifier.isiWOS:000255451100023-
dc.publisher.placeSwitzerlanden_HK
dc.identifier.scopusauthoridYeung, KWK=13309584700en_HK
dc.identifier.scopusauthoridChan, YL=8250546500en_HK
dc.identifier.scopusauthoridLam, KO=22980533000en_HK
dc.identifier.scopusauthoridLiu, XM=8408205200en_HK
dc.identifier.scopusauthoridWu, SL=15125218800en_HK
dc.identifier.scopusauthoridLiu, XY=8603933800en_HK
dc.identifier.scopusauthoridChung, CY=8100842800en_HK
dc.identifier.scopusauthoridLu, WW=7404215221en_HK
dc.identifier.scopusauthoridChan, D=7402216545en_HK
dc.identifier.scopusauthoridLuk, KDK=7201921573en_HK
dc.identifier.scopusauthoridChu, PK=36040705700en_HK
dc.identifier.scopusauthoridCheung, KMC=7402406754en_HK
dc.identifier.citeulike2802319-

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