Evaluation of biomimetic coatings on femtosecond laser treated alumina and alumina-zirconia composite surfaces

Machining, joining and modifications of advanced materials

dc.contributorOCHSNER, ANDREAS
dc.contributorALTENBACH, HOLM
dc.creatorAGUIAR, A.A.
dc.creatorLIMA, N.B. de
dc.creatorBRAGA, F.J.C.
dc.creatorROSSI, W.
dc.creatorCOUTO, A.A.
dc.creatorBALDAN, R.
dc.date2016
dc.date2016-11-09T10:48:28Z
dc.date2016-11-09T10:48:28Z
dc.date.accessioned2023-09-28T13:31:15Z
dc.date.available2023-09-28T13:31:15Z
dc.identifierhttp://repositorio.ipen.br/handle/123456789/26765
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8997061
dc.descriptionThe effect of texturing Al2O3 and Al2O3/ZrO2 surfaces using fem- 7 tosecond laser has been evaluated in terms of the roughness, wettability and 8 microstructure of the substrate to increase growth efficiency and adhesion of 9 hydroxyapatite. Femtosecond laser treatment of these materials causes phase 10 transformation from alpha-alumina to gamma-alumina. Heat effects during fem- 11 tosecond laser treatment causes the grains to be in the nanometer scale. Without 12 heat effects, the grains are in the micrometer scale. The use of femtosecond laser 13 permits control of the surface roughness of the alumina specimens. The higher the 14 femtosecond laser energy, the higher is the wettability of the specimen and the total 15 surface energy. Specimens with laser textured surfaces upon immersion in 1.5 SBF 16 for 6 and 15 days revealed apatite layers well bonded to the substrate and without 17 detachment. The adhesion of apatite to surfaces of specimens that were not textured 18 with femtosecond laser was inadequate
dc.format141-157
dc.publisherSpringer
dc.rightsclosedAccess
dc.subjectevaluation
dc.subjectcoatings
dc.subjectlasers
dc.subjectaluminium oxides
dc.subjectzinc oxides
dc.subjectcomposite materials
dc.subjectsurfaces
dc.subjectroughness
dc.subjectwettability
dc.subjectmicrostructure
dc.subjectsubstrates
dc.subjectapatites
dc.titleEvaluation of biomimetic coatings on femtosecond laser treated alumina and alumina-zirconia composite surfaces
dc.titleMachining, joining and modifications of advanced materials
dc.typeCap??tulo de livro
dc.coverageI
dc.localSingapura


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