José Antonio Rodríguez-Ortiz

Prof. José Antonio Rodríguez-Ortiz

orcid

Research Focus & Metrics

Academic Career Length

32Years (1995-Present)

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

Representative Publications

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1 May 2012 in Journal of Materials Processing Technology
Verified
Journal Article
Closed access
Yadir Torres HernándezYadir Torres Hernández
Yadir Torres Hernández
JPJ.J. Pavón
J.J. Pavón
JRJosé Antonio Rodríguez-Ortiz
José Antonio Rodríguez-Ortiz

1 January 2018 in Surface and Coatings Technology
Verified
Journal Article
Closed access
CDC. Domínguez-Trujillo
C. Domínguez-Trujillo
EAEduardo Peón Avés
Eduardo Peón Avés
ECERNESTO CHICARDI
ERNESTO CHICARDI
HPH. Pérez
H. Pérez
JRJosé Antonio Rodríguez-Ortiz
José Antonio Rodríguez-Ortiz
Yadir Torres HernándezYadir Torres Hernández
Yadir Torres Hernández

1 April 2014 in Materials Science and Engineering: C
Verified
Journal Article
Closed access
Yadir Torres HernándezYadir Torres Hernández
Yadir Torres Hernández
SFSheila Lascano Farak
Sheila Lascano Farak
JBJorge Bris
Jorge Bris
JPJuan Pavón
Juan Pavón
JRJosé Antonio Rodríguez-Ortiz
José Antonio Rodríguez-Ortiz

1 April 2017 in Electrochimica Acta
Verified
Journal Article
Closed access
SHSvenja Heise
Svenja Heise
MHMichael Höhlinger
Michael Höhlinger
Yadir Torres HernándezYadir Torres Hernández
Yadir Torres Hernández
JPJuan José Pavón Palacio
Juan José Pavón Palacio
JRJosé Antonio Rodríguez-Ortiz
José Antonio Rodríguez-Ortiz
ABAldo R. Boccaccini
Aldo R. Boccaccini

30 May 2012 in Journal of Materials Science
Verified
Journal Article
Closed access
PDF file
Yadir Torres HernándezYadir Torres Hernández
Yadir Torres Hernández
JRJosé Antonio Rodríguez-Ortiz
José Antonio Rodríguez-Ortiz
SAS. Arias
S. Arias
MRMONICA ECHEVERRY RENDON
MONICA ECHEVERRY RENDON
SRS. Robledo
S. Robledo
JPJ. J. Pavón
J. J. Pavón

8 March 2019 in Applied Sciences
Verified
Journal Article
Open access
PDF file
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.