dc.creator | Lascano, Sheila | es |
dc.creator | Arévalo Mora, Cristina María | es |
dc.creator | Montealegre-Meléndez, Isabel | es |
dc.creator | Muñoz Moreno, Sergio | es |
dc.creator | Rodríguez-Ortiz, José Antonio | es |
dc.creator | Trueba Muñoz, Paloma | es |
dc.creator | Torres Hernández, Yadir | es |
dc.date.accessioned | 2021-07-29T10:49:29Z | |
dc.date.available | 2021-07-29T10:49:29Z | |
dc.date.issued | 2019 | |
dc.identifier.citation | Lascano, S., Arévalo Mora, C.M., Montealegre-Meléndez, I., Muñoz Moreno, S., Rodríguez Ortiz, J.A., Trueba Muñoz, P. y Torres Hernández, Y. (2019). Porous Titanium for Biomedical Applications: Evaluation of the Conventional Powder Metallurgy Frontier and Space-Holder Technique. Applied Sciences, 9 (5) (982) | |
dc.identifier.issn | 2076-3417 | es |
dc.identifier.uri | https://hdl.handle.net/11441/116544 | |
dc.description.abstract | Titanium and its alloys are reference materials in biomedical applications because of
their desirable properties. However, one of the most important concerns in long-term prostheses
is bone resorption as a result of the stress-shielding phenomena. Development of porous titanium
for implants with a low Young’s modulus has accomplished increasing scientific and technological
attention. The aim of this study is to evaluate the viability, industrial implementation and potential
technology transfer of different powder-metallurgy techniques to obtain porous titanium with
stiffness values similar to that exhibited by cortical bone. Porous samples of commercial pure titanium
grade-4 were obtained by following both conventional powder metallurgy (PM) and space-holder
technique. The conventional PM frontier (Loose-Sintering) was evaluated. Additionally, the technical
feasibility of two different space holders (NH4HCO3 and NaCl) was investigated. The microstructural
and mechanical properties were assessed. Furthermore, the mechanical properties of titanium porous
structures with porosities of 40% were studied by Finite Element Method (FEM) and compared with
the experimental results. Some important findings are: (i) the optimal parameters for processing
routes used to obtain low Young’s modulus values, retaining suitable mechanical strength; (ii) better
mechanical response was obtained by using NH4HCO3 as space holder; and (iii) Ti matrix hardening
when the interconnected porosity was 36–45% of total porosity. Finally, the advantages and limitations
of the PM techniques employed, towards an industrial implementation, were discussed. | es |
dc.description.sponsorship | Ministerio de Economía y Competitividad MAT2015-71284-P | es |
dc.description.sponsorship | Junta de Andalucía P12-TEP-1401 | es |
dc.description.sponsorship | Comisión Nacional de Investigación Científica y Tecnológica (Chile) 11160865 | es |
dc.format | application/pdf | es |
dc.format.extent | 13 p. | es |
dc.language.iso | eng | es |
dc.publisher | MDPI | es |
dc.relation.ispartof | Applied Sciences, 9 (5) (982) | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | biomaterials | es |
dc.subject | titanium | es |
dc.subject | powder metallurgy | es |
dc.subject | loose sintering | es |
dc.subject | finite element method | es |
dc.subject | mechanical behaviour | es |
dc.title | Porous Titanium for Biomedical Applications: Evaluation of the Conventional Powder Metallurgy Frontier and Space-Holder Technique | es |
dc.type | info:eu-repo/semantics/article | es |
dcterms.identifier | https://ror.org/03yxnpp24 | |
dc.type.version | info:eu-repo/semantics/publishedVersion | es |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es |
dc.contributor.affiliation | Universidad de Sevilla. Departamento de Ingeniería y Ciencia de los Materiales y del Transporte | es |
dc.relation.projectID | MAT2015-71284-P | es |
dc.relation.projectID | P12-TEP-1401 | es |
dc.relation.projectID | 11160865 | es |
dc.relation.publisherversion | https://www.mdpi.com/2076-3417/9/5/982 | es |
dc.identifier.doi | 10.3390/app9050982 | es |
dc.journaltitle | Applied Sciences | es |
dc.publication.volumen | 9 (5) | es |
dc.publication.issue | 982 | es |