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dc.contributor.authorBaino, Francesco
dc.contributor.authorMontealegre, Maria Ángeles
dc.contributor.authorMinguella Canela, Joaquim
dc.contributor.authorVitale-Brovarone, Chiara
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Mecànica
dc.date.accessioned2019-09-05T09:01:51Z
dc.date.available2019-09-05T09:01:51Z
dc.date.issued2019-06-06
dc.identifier.citationBaino, F. [et al.]. Laser surface texturing of alumina/zirconia composite ceramics for potential use in hip joint prosthesis. "Coatings", 6 Juny 2019, vol. 9, núm. 6, p. 369-1-369-15.
dc.identifier.issn2079-6412
dc.identifier.urihttp://hdl.handle.net/2117/167920
dc.description.abstractThe use of metal shell to fix an acetabular cup to bone in hip joint prosthesis carries some limitations, including restrictions in prosthetic femur ball diameter and in patient’s range of motion. These drawbacks could be ideally overcome by using a monolithic ceramic acetabular cup, but the fixation of such an implant to host bone still remains a challenge. Since porous surfaces are known to promote more bone tissue interlocking compared to smooth materials, in this work the surfaces of sintered alumina/zirconia composite ceramics were treated by a pulsed laser radiation at 1064 nm with a pulse width in the nanosecond range, in order to impart controlled textural patterns. The influence of laser process parameters (e.g., energy per pulse, repetition rate, scanning speed, repetition number, angle of laser beam, and number of cycles) on the roughness and texture orientation was systematically investigated. The obtained surface topographies were inspected by optical and scanning electron microscopy, and the roughness was assessed by contact profilometry. Surface roughness could be modulated in the range of 3 to 30 µm by varying the processing parameters, among which the number of cycles was shown to play a major role. The laser treatment was also successfully adapted and applied to ceramic acetabular cups with a curved profile, thus demonstrating the feasibility of the proposed approach to process real prosthetic components
dc.language.isoeng
dc.publisherMultidisciplinary Digital Publishing Institute (MDPI)
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Enginyeria biomèdica
dc.subjectÀrees temàtiques de la UPC::Enginyeria biomèdica::Biomaterials
dc.subjectÀrees temàtiques de la UPC::Enginyeria biomèdica::Biomecànica
dc.subjectÀrees temàtiques de la UPC::Enginyeria dels materials
dc.subject.lcshArtificial hip joints
dc.subject.lcshBiomedical engineering
dc.subject.lcshBioengineering
dc.subject.lcshBiomedical materials
dc.subject.otherBioceramics
dc.subject.otherLaser ablation
dc.subject.otherRoughness
dc.subject.otherComposites
dc.subject.otherHip joint prosthesis
dc.subject.otherCementless cup
dc.subject.otherBone
dc.titleLaser surface texturing of alumina/zirconia composite ceramics for potential use in hip joint prosthesis
dc.typeArticle
dc.subject.lemacMalucs artificials
dc.subject.lemacEnginyeria biomèdica
dc.subject.lemacBioenginyeria
dc.subject.lemacMaterials biomèdics
dc.contributor.groupUniversitat Politècnica de Catalunya. TECNOFAB - Grup de Recerca en Tecnologies de Fabricació
dc.identifier.doi10.3390/coatings9060369
dc.relation.publisherversionhttps://www.mdpi.com/journal/coatings/special_issues/surface_laser
dc.rights.accessOpen Access
local.identifier.drac25176601
dc.description.versionPostprint (published version)
local.citation.authorBaino, F.; Montealegre, M.; Minguella-Canela, J.; Vitale-Brovarone, C.
local.citation.publicationNameCoatings
local.citation.volume9
local.citation.number6
local.citation.startingPage369-1
local.citation.endingPage369-15


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