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Conference Paper: Microstructure and mechanical performances of plasma-sprayed functionally gradient HA-ZrO2-Bioglass coatings

TitleMicrostructure and mechanical performances of plasma-sprayed functionally gradient HA-ZrO2-Bioglass coatings
Authors
KeywordsFunctionally Gradient Coating
Nanoindentation
Structural Characteristic
Issue Date2005
PublisherTrans Tech Publications Ltd. The Journal's web site is located at http://www.scientific.net
Citation
Key Engineering Materials, 2005, v. 280-283 II, p. 1893-1898 How to Cite?
AbstractFor practical applications such as artifical joints and dental implants, there is a strong demand for hydroxyapatite coatings with excellent performances to ensure long-term fixation. In the present study, functionally gradient HA-ZrO2-Bioglass coatings were prepared using net-energy controlled plasma spraying technology. The structural characteristics and mechanical performances of the coatings were examined by scanning electron microscopy (SEM), X-ray diffraction (XRD) and nanoindentation. The results showed that: (1) Pore sizes and compositions of the coatings changed gradually along the vertical substrate, crystal HA with few calcium phosphates was presented in the heat-treated coatings. (2) Surface of the coating was very rough with nano-sized crystalline grains and micropores; (3) Young's modulus and hardness changed gradually at the range of coating-Ti6Alo4V interface. Compared with HA coatings, the tensile adhesive strength of the functionally graded HA-ZrO 2-Bioglass coatings reached 38.6 MPa, much higher than that of single HA coatings.
Persistent Identifierhttp://hdl.handle.net/10722/173403
ISSN
2005 Impact Factor: 0.224
2015 SCImago Journal Rankings: 0.173
References

 

DC FieldValueLanguage
dc.contributor.authorNing, CYen_US
dc.contributor.authorWang, YJen_US
dc.contributor.authorLu, WWen_US
dc.contributor.authorChen, XFen_US
dc.contributor.authorWu, Gen_US
dc.contributor.authorZhao, NRen_US
dc.date.accessioned2012-10-30T06:30:52Z-
dc.date.available2012-10-30T06:30:52Z-
dc.date.issued2005en_US
dc.identifier.citationKey Engineering Materials, 2005, v. 280-283 II, p. 1893-1898en_US
dc.identifier.issn1013-9826en_US
dc.identifier.urihttp://hdl.handle.net/10722/173403-
dc.description.abstractFor practical applications such as artifical joints and dental implants, there is a strong demand for hydroxyapatite coatings with excellent performances to ensure long-term fixation. In the present study, functionally gradient HA-ZrO2-Bioglass coatings were prepared using net-energy controlled plasma spraying technology. The structural characteristics and mechanical performances of the coatings were examined by scanning electron microscopy (SEM), X-ray diffraction (XRD) and nanoindentation. The results showed that: (1) Pore sizes and compositions of the coatings changed gradually along the vertical substrate, crystal HA with few calcium phosphates was presented in the heat-treated coatings. (2) Surface of the coating was very rough with nano-sized crystalline grains and micropores; (3) Young's modulus and hardness changed gradually at the range of coating-Ti6Alo4V interface. Compared with HA coatings, the tensile adhesive strength of the functionally graded HA-ZrO 2-Bioglass coatings reached 38.6 MPa, much higher than that of single HA coatings.en_US
dc.languageengen_US
dc.publisherTrans Tech Publications Ltd. The Journal's web site is located at http://www.scientific.neten_US
dc.relation.ispartofKey Engineering Materialsen_US
dc.subjectFunctionally Gradient Coatingen_US
dc.subjectNanoindentationen_US
dc.subjectStructural Characteristicen_US
dc.titleMicrostructure and mechanical performances of plasma-sprayed functionally gradient HA-ZrO2-Bioglass coatingsen_US
dc.typeConference_Paperen_US
dc.identifier.emailLu, WW:wwlu@hku.hken_US
dc.identifier.authorityLu, WW=rp00411en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-34249659081en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-34249659081&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume280-283en_US
dc.identifier.issueIIen_US
dc.identifier.spage1893en_US
dc.identifier.epage1898en_US
dc.publisher.placeSwitzerlanden_US
dc.identifier.scopusauthoridNing, CY=9238411800en_US
dc.identifier.scopusauthoridWang, YJ=9238411600en_US
dc.identifier.scopusauthoridLu, WW=7404215221en_US
dc.identifier.scopusauthoridChen, XF=35218791400en_US
dc.identifier.scopusauthoridWu, G=35509261900en_US
dc.identifier.scopusauthoridZhao, NR=7101663041en_US

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