59 citations · 343 across the 26 of their papers we have counts for
27 papers
Crystallographic-orientation dependence of the early-stage oxidation of Zr single crystals: an XPS study of suboxide formation and in-depth distribution
Joaquin Sacanell, Flavio Conde
The influence of crystallographic orientation on the early stages of the oxidation of pure Zr single crystals was studied by X ray photoelectron spectroscopy (XPS). Two samples, cu…
Magnetocaloric Effect in Nanostructured
Fabiana N. Morales Alvarez, Mariano Quintero, Joaquín Sacanell
This work presents a systematic study of the magnetocaloric effect in the nanostructured perovskite series (x = 0, 0.2, 0.5, 0.8, and 1.0), synt…
Impact of the lead factor of neutron irradiation on the magnetic properties of RPV steels
Sebastián Passanante, Dafne Goijman, M. R. Neyra Astudillo +5
Materials used in nuclear reactors are constantly exposed to the effects of neutron irradiation, which leads to changes in their mechanical properties. In particular, the steels em…
Tuning electrochemical properties and thermal stability of YSZ mesoporous thin films for SOFC applications
Bernardo Sievers, Leticia Granja, Andrés Zelcer +7
Dense and mesoporous 4% mol Yttria-stabilized zirconia thin films were deposited on amorphous silica substrates. The effects of the temperature on the mesostructure were analyzed,…
Magnetocaloric effect of nanostructured La0.6Sr0.4CoO3
Fabiana Morales Alvarez, María Belén Vigna, Mariano Quintero +2
In this study, we investigate the magnetic and magnetocaloric properties of nanostructured La0.6Sr0.4CoO3 (LSC) samples synthesized under confinement conditions within porous templ…
Crystal structure, cobalt and iron speciation and oxygen non-stoichiometry of La0.6Sr0.4Co1-yFeyO3-d nanorods for IT-SOFC cathodes
Augusto E. Mejía Gómez, Joaquín Sacanell, Cristián Huck-Iriart +7
Single-phased La0.6Sr0.4Co1-yFeyO3-d (y = 0.2, 0.5, 0.8) nanorods exhibiting the rhombohedral perovskite-type phase were synthesized by a pore-wetting technique. We studied their c…
Temperature-programmed reduction and dispersive X-ray absorption spectroscopy studies of CeO2-based nanopowders for intermediate-temperature Solid-Oxide Fuel Cell anodes
Marina S. Bellora, Joaquín Sacanell, Cristián Huck-Iriart +3
In this work, we study the influence of the average crystallite size and dopant oxide on the reducibility of CeO2-based nanomaterials. Samples were prepared from commercial Gd2O3-,…
Thermal cycling memory in phase separated manganites
Bernardo Sievers, Mariano Quintero, Joaquín Sacanell
We have studied the irreversibility of the magnetization induced by thermal cycles in La0.5Ca0.5MnO3 manganites, which present a low temperature state characterized by the coexiste…
Nanostructured La0.5Ba0.5CoO3 as cathode for solid oxide fuel cells
Augusto E. Mejía Gómez, Diego G. Lamas, Ana Gabriela Leyva +1
A simple method has been used to synthesize nanostructured La0.5Ba0.5CoO3 (LBCO) powders, by confining chemical precursors into the pores of polycarbonate filters. The proposed met…
Influence of particle size and agglomeration in solid oxide fuel cell cathodes using manganite nanoparticles
Hernán Martinelli, Diego G. Lamas, Ana G. Leyva +1
In this work we studied the influence of particle size and agglomeration in the performance of solid oxide fuel cell cathodes made with nanoparticles of La0.8Sr0.2MnO3. We followed…
Magnetic properties of cobalt doped ZrO nanoparticles: Evidence of Co segregation
Francisco González Pinto, Mariano Andrés Paulin, Ana Gabriela Leyva +1
We synthesized pure and Co-doped (6.25 12.5 at.) ZrO nanopowders in order to study their magnetic properties.We analyzed magnetic behavior as a function of the amount of Co and…
Thermal cycling effects on static and dynamic properties of a phase separated manganite
Joaquín Sacanell, Bernardo Sievers, Mariano Quintero +3
In this work we address the interplay between two phenomena which are signatures of the out-of-equilibrium state in phase separated manganites: irreversibility against thermal cycl…
Oxygen reduction mechanisms in nanostructured La0.8Sr0.2MnO3 cathodes for Solid Oxide Fuel Cells
Joaquín Sacanell, Joaquín Hernández Sánchez, Adrián Ezequiel Rubio López +8
In this work we outline the mechanisms contributing to the oxygen reduction reaction in nanostructured cathodes of La0.8Sr0.2MnO3 (LSM) for Solid Oxide Fuel Cells (SOFC). These cat…
Nanostructured LnBaCo2O6-d (Ln = Sm, Gd) with layered structure for Intermediate Temperature SOFC cathodes
Augusto E. Mejía Gómez, Diego G. Lamas, Ana Gabriela Leyva +1
We evaluated for the first time the use of nanostructured layered perovskites of formulae LnBaCo2O6-d with Ln = Sm and Gd (SBCO and GBCO, respetively) as SOFC cathodes, finding pro…
Correlation between electrical and magnetic properties of phase separated manganites studied with a General Effective Medium model
J. Sacanell, M. Quintero, F. Parisi +3
We have performed electrical resistivity and DC magnetization measurements as a function of temperature, on polycrystalline samples of phase separated LaPrCaMnO. We have used the G…
Phase diagram of La_{5/8-y}Nd_{y}Ca_{3/8}MnO_3 manganites
Joaquín Sacanell, Pablo Levy, Ana G. Leyva +2
We report a detailed study of the electric transport and magnetic properties of the LaNdCaMnO manganite system. Substitution of LaIII by smaller NdIII ions, reduces the mean ionic…
Study of the flux effect on nuclear pressure vessel steel by measurement of magnetic properties
R. A. Kempf, J. Sacanell, J. Milano +6
Since Reactor Pressure Vessel steels are ferromagnetic, they provide a convenient means to monitor changes in the mechanical properties of the material upon irradiation with high e…
Reversible switching of room temperature ferromagnetism in CeO2-Co nanoparticles
J. Sacanell, M. A. Paulin, V. Ferrari +2
We investigated the reversible ferromagnetic (FM) behavior of pure and Co doped CeO2 nanopowders. The as-sintered samples displayed an increasing paramagnetic contribution upon Co…
Direct observation of magnetocaloric effect by differential thermal analysis: influence of experimental parameters
Yamila Rotstein Habarnau, Pablo Bergamasco, Joaquin Sacanell +3
The magnetocaloric effect is the isothermal change of magnetic entropy and the adiabatic temperature change induced in a magnetic material when an external magnetic field is applie…
Magnetocaloric effect in manganites: metamagnetic transitions for magnetic refrigeration
M. Quintero, J. Sacanell, L. Ghivelder +3
We present a study of the magnetocaloric effect in La5/8-yPryCa3/8MnO3 (y=0.3) and Pr0.5Ca0.09Sr0.41MnO3 manganites. The low temperature state of both ystems is the result of a com…
Thermodynamic modeling of phase separation in manganites
J. Sacanell, F. Parisi, J. C. P. Campoy +1
We present a phenomenological model based on the thermodynamics of the phase separated state of manganites, accounting for its static and dynamic properties. Through calorimetric m…
The electrical current effect in phase separated La5/8-yPryCa3/8MnO3: Charge order melting vs. Joule heating
J. Sacanell, A. G. Leyva, P. Levy
We have studied the effect of electric field on transport properties of the prototypical phase separated manganite La5/8-yPryCa3/8MnO3 with y=0.34. Our results show that the sugges…
Magnetoresistive memory in phase separated LaCaMnO
J. Sacanell, F. Parisi, P. Levy +1
We have studied a non volatile memory effect in the mixed valent compound LaCaMnO induced by magnetic field (H). In a previous work [R.S. Freitas et al., Phys…
Low temperature irreversibility induced by thermal cycles on two prototypical phase separated manganites
J. Sacanell, M. Quintero, J. Curiale +8
We have studied the effect of irreversibility induced by repeated thermal cycles on the electric transport and magnetization of polycrystalline samples of La0.5Ca0.5MnO3 and La0.32…