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Powder bed laser sintering of copper-doped hydroxyapatite: Numerical and experimental parametric analysis

hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorROUZÉ L'ALZIT, François
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
hal.structure.identifierInstitut de Recherche sur les CERamiques [IRCER]
dc.contributor.authorBAZIN, Tiphaine
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorCARDINAL, Thierry
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorCHUNG, U-Chan
hal.structure.identifierBioingénierie tissulaire [BIOTIS]
dc.contributor.authorCATROS, Sylvain
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorBERTRAND, Caroline
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorGAUDON, Manuel
hal.structure.identifierLaboratoire des Composites Thermostructuraux [LCTS]
dc.contributor.authorVIGNOLES, Gérard L.
dc.date.issued2021
dc.identifier.issn2214-8604
dc.description.abstractEnAdditive manufacturing (AM), especially powder bed laser sintering (PBLS), has been an increasingly popular field since the 1980s. Direct SLS is particularly challenging with ceramic materials due to their low thermal conductivity, high melting point, and brittle mechanical behaviour. In addition, they require longer processing times for a reliable sintering degree. In this work, the impact of some crucial parameters in SLS applied to a copper-doped hydroxyapatite bioceramic was studied. Incorporating copper ions into the hydroxyapatite matrix by thermal treatment can stimulate blood vessel formation, simultaneously improving the material's mechanical integrity and antibacterial properties. Moreover, it facilitates laser power absorption by the material at the laser wavelength. Thin films were prepared with controlled thicknesses using dip-coating on glass substrates, and they were irradiated by an ytterbium laser (1.070 µm wavelength). Experimental laser irradiation was systematically compared to numerical models to predict the maximum temperature produced on the film surface by laser irradiation. The evaluated parameters are the absorptivity from the copper concentration, the film thickness, and the laser source (scanning velocity and power). Combining low laser scanning speeds with low film thickness and optimised absorption tuned by the copper concentration has made possible the development of well-sintered ceramics by the PBLS technique.
dc.language.isoen
dc.publisherElsevier
dc.subject.enPowder Bed laser sintering
dc.subject.enHydroxyapatite
dc.subject.enExperimental analysis
dc.subject.enNumerical model
dc.subject.enCopper
dc.subject.enSelective laser sintering
dc.title.enPowder bed laser sintering of copper-doped hydroxyapatite: Numerical and experimental parametric analysis
dc.typeArticle de revue
dc.identifier.doi10.1016/j.addma.2021.102044
dc.subject.halChimie/Matériaux
dc.subject.halSciences de l'ingénieur [physics]/Génie des procédés
bordeaux.journalAdditive Manufacturing
bordeaux.page102044
bordeaux.volume46
bordeaux.peerReviewedoui
hal.identifierhal-03283160
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03283160v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Additive%20Manufacturing&rft.date=2021&rft.volume=46&rft.spage=102044&rft.epage=102044&rft.eissn=2214-8604&rft.issn=2214-8604&rft.au=ROUZ%C3%89%20L'ALZIT,%20Fran%C3%A7ois&BAZIN,%20Tiphaine&CARDINAL,%20Thierry&CHUNG,%20U-Chan&CATROS,%20Sylvain&rft.genre=article


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