Preparation of Laser-Modified Ti-15Mo Surfaces With Multiphase Calcium Phosphate Coatings
| Autor: | Edson de Almeida Filho, Ricardo L. Tranquilin, Márcio Luiz dos Santos, Antonio Carlos Guastaldi, Jéssica da Silva Carnietto, Carla dos Santos Riccardi, Regina Mara Silva Perreira, Vagner Pereira da Silva |
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| Přispěvatelé: | Univ Anhanguera Sao Paulo, Universidade Estadual Paulista (Unesp), Univ Fed Rio Grande do Norte |
| Rok vydání: | 2020 |
| Předmět: |
Magnesium phosphate
Laser ablation Materials science Mechanical Engineering biomimetic coatings chemistry.chemical_element Biomaterial Bioceramic Condensed Matter Physics calcium phosphates chemistry.chemical_compound Chemical engineering chemistry Mechanics of Materials TA401-492 laser ablation Ti-15Mo alloy General Materials Science Amorphous calcium phosphate Bone regeneration Octacalcium phosphate Materials of engineering and construction. Mechanics of materials Titanium |
| Zdroj: | Materials Research, Volume: 23, Issue: 4, Article number: e20190594, Published: 04 SEP 2020 Materials Research, Vol 23, Iss 4 (2020) Web of Science Repositório Institucional da UNESP Universidade Estadual Paulista (UNESP) instacron:UNESP Materials Research v.23 n.4 2020 Materials research (São Carlos. Online) Universidade Federal de São Carlos (UFSCAR) instacron:ABM ABC ABPOL |
| ISSN: | 1980-5373 1516-1439 |
| Popis: | Made available in DSpace on 2021-06-25T11:22:28Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-01-01. Added 1 bitstream(s) on 2021-07-15T15:05:54Z : No. of bitstreams: 1 S1516-14392020000400220.pdf: 1175167 bytes, checksum: 5a5d6cc0574cb08e282566464fb29dc5 (MD5) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Multiphasic bioceramic scaffolds has been enhanced for dental and orthopedic applications. In this perspective, the laser surface texturing of metallic surfaces combined to bioactive calcium phosphate coatings have shown to be promising and economically feasible for biomaterial clinical applications. Ti-15Mo alloy samples were irradiated by pulsed Yb: YAG laser beam. The formation of HA and other calcium phosphates phases by biomimetic method should occur in the presence of Ca2+, PO43-, Mg2+, HCO3-, K+ and Na+. The modified surfaces were submitted to thermal treatment at 380 and 580 degrees C. The results showed the processes of fusion and fast solidification from the laser beam irradiation, inducing the formation of stoichiometric alpha-Ti, TiO2 and non-stoichiometric titanium oxides, Ti3O and Ti6O with different oxide percentages depending on applied fluency (fluency of 0.023, 0.033, 0.040 and 0.048 J/mm(2)). The morphological and physicochemical properties have indicated the formation of a multiphase bioceramic coatings. It was observed the formation of amorphous calcium phosphate (ACP), octacalcium phosphate (OCP), and magnesium phosphate (Mg-3(PO4)(2)) phases at 380 degrees C, whereas beta-TCP (tricalcium phosphate), OCP, and substituted beta-TCP with Ca2,589Mg0,41(PO4)(2) were obtained at 580 degrees C. Therefore, the multiphasic bioceramic modified Ti-15Mo surface could enhance osteointegration for bone regeneration. Univ Anhanguera Sao Paulo, Programa Biotecnol & Inovacao Saude, Programa Mestrado Profiss Farm, Sao Paulo, SP, Brazil Univ Estadual Paulista, Inst Quim, Grp Biomat, Araraquara, SP, Brazil Univ Fed Rio Grande do Norte, Lab Sintese Quim Mat, Natal, RN, Brazil Univ Estadual Paulista, Fac Ciencias Agron, Botucatu, SP, Brazil Univ Estadual Paulista, Inst Quim, Grp Biomat, Araraquara, SP, Brazil Univ Estadual Paulista, Fac Ciencias Agron, Botucatu, SP, Brazil |
| Databáze: | OpenAIRE |
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