Isabel Montealegre-Meléndez

Dr. Isabel Montealegre-Meléndez

Ing. y Ciencia de los Materiales y del Transporte, University of Seville, Seville, Spain
orcid

Research Focus & Metrics

Academic Career Length

18Years (2009-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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8 March 2019 in Applied Sciences
Verified
Journal Article
Open access
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SFSheila Lascano Farak
Sheila Lascano Farak
CACristina Arévalo
Cristina Arévalo
IMIsabel Montealegre-Meléndez
Isabel Montealegre-Meléndez
SMSergio Muñoz Moreno
Sergio Muñoz Moreno
JRJosé Antonio Rodríguez-Ortiz
José Antonio Rodríguez-Ortiz
Yadir Torres HernándezYadir Torres Hernández
Yadir Torres Hernández
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.

1 November 2014 in Materials & Design (1980-2015)
Verified
Journal Article
Closed access
Yadir Torres HernándezYadir Torres Hernández
Yadir Torres Hernández
PTP. Trueba
P. Trueba
JPJ. Pavón
J. Pavón
IMIsabel Montealegre-Meléndez
Isabel Montealegre-Meléndez
JRJosé Antonio Rodríguez-Ortiz
José Antonio Rodríguez-Ortiz

1 May 2011 in Composites Science and Technology
Verified
Journal Article
Closed access
IMIsabel Montealegre-Meléndez
Isabel Montealegre-Meléndez
ENE. Neubauer
E. Neubauer
PAP. Angerer
P. Angerer
HDH. Danninger
H. Danninger
Jose Manuel TorralbaJose Manuel Torralba
Jose Manuel Torralba

1 June 2012 in Materials Science and Engineering: A
Verified
Journal Article
Closed access
LBL. Bolzoni
L. Bolzoni
IMIsabel Montealegre-Meléndez
Isabel Montealegre-Meléndez
ERE.M. Ruiz-Navas
E.M. Ruiz-Navas
Elena GordoElena Gordo
Elena Gordo

1 March 2018 in Surface and Coatings Technology
Verified
Journal Article
Closed access
CDCristina Domínguez-Trujillo
Cristina Domínguez-Trujillo
Fátima Ternero FernándezFátima Ternero Fernández
Fátima Ternero Fernández
JRJosé Antonio Rodríguez-Ortiz
José Antonio Rodríguez-Ortiz
JPJuan José Pavón
Juan José Pavón
IMIsabel Montealegre-Meléndez
Isabel Montealegre-Meléndez
Yadir Torres HernándezYadir Torres Hernández
Yadir Torres Hernández

1 June 2010 in Materials Science and Engineering: A
Verified
Journal Article
Closed access
IMIsabel Montealegre-Meléndez
Isabel Montealegre-Meléndez
ENE. Neubauer
E. Neubauer
HDH. Danninger
H. Danninger