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dc.creatorGligorijević, Bojan
dc.creatorVilotijević, Miroljub N.
dc.creatorScepanović, Maja
dc.creatorVuković, Nikola S.
dc.creatorRadović, Nenad
dc.date.accessioned2021-03-10T13:11:55Z
dc.date.available2021-03-10T13:11:55Z
dc.date.issued2016
dc.identifier.issn0272-8842
dc.identifier.urihttp://TechnoRep.tmf.bg.ac.rs/handle/123456789/3403
dc.description.abstractThe aim of the present study was to investigate the influence of substrate preheating on the structural properties of hydroxyapatite coatings (HACs) deposited by using the high power (52 kW) laminar plasma jet. The deposition experiments were performed within the 20-200 degrees C temperature range at different stand-off distances. The structural properties in the thickness direction and at the surface of the HACs were investigated by using the micro-Raman spectroscopy, scanning electron microscopy coupled with energy dispersive spectrometry, and X-ray powder diffractometry. The deposition without the preheating of the substrate produced HACs with crystallinity gradient in the thickness direction. At the stand-off distance of 80 mm, the preheating of the substrate at 200 degrees C practically eliminated the crystallinity gradient. At distances from the coating/substrate interface shorter than similar to 100 mu m, the increase of crystallinity with the preheating of the substrate was dominantly attributed to the recrystallization of hydroxyl-rich ACP into HA. At longer distances and higher initial substrate temperatures ( gt 100 degrees C), the crystallinity changes were negligible, whereas the recrystallization of hydroxyl-deficient ACP into oxyapatite (OA) was also possible. The X-ray diffractometry indicated the deposition conditions under which a minimum residual stress was achieved. The results of the present study strongly suggested the relation between the ACP - gt HA remystallization process and the bonding strength of the HACs.en
dc.publisherElsevier Sci Ltd, Oxford
dc.relationPlasma Jet Co., Serbia
dc.relationinfo:eu-repo/grantAgreement/MESTD/Technological Development (TD or TR)/34022/RS//
dc.rightsrestrictedAccess
dc.sourceCeramics International
dc.subjectHydroxyapatite coatingsen
dc.subjectPlasma sprayingen
dc.subjectSubstrate preheatingen
dc.subjectStructural propertiesen
dc.subjectMicro-Raman spectroscopyen
dc.titleSubstrate preheating and structural properties of power plasma sprayed hydroxyapatite coatingsen
dc.typearticle
dc.rights.licenseARR
dc.citation.epage420
dc.citation.issue1
dc.citation.other42(1): 411-420
dc.citation.rankaM21
dc.citation.spage411
dc.citation.volume42
dc.identifier.doi10.1016/j.ceramint.2015.08.125
dc.identifier.rcubconv_4846
dc.identifier.scopus2-s2.0-84945283932
dc.identifier.wos000365369500046
dc.type.versionpublishedVersion


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