Browsing by Author "Nó Sánchez, María Luisa"
Now showing items 1-20 of 24
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Additive Manufacturing of Fe-Mn-Si-Based Shape Memory Alloys: State of the Art, Challenges and Opportunities
Del Río, Lucía; Nó Sánchez, María Luisa; Gómez González, Raul; García Sesma, Leire; Urionabarrenetxea, Ernesto; Ortega, Pablo; Mancisidor, Ane Miren; San Sebastian, Maria; Burgos, Nerea; San Juan Núñez, José María (MDPI, 2023-12-05)Additive manufacturing (AM) constitutes the new paradigm in materials processing and its use on metals and alloys opens new unforeseen possibilities, but is facing several challenges regarding the design of the microstructure, ... -
Aleaciones con Memoria de Forma de Cu-Al-Ni-Be para muy bajas temperaturas: Síntesis y caracterización microestructural, térmica y mecánica
Lorenzo García-Minguillán, Patricia (2021-10-22)Las aleaciones con memoria de forma (SMA: Shape Memory Alloys) presentan unatransformación martensítica termoelástica que les confiere las propiedades de Memoria deForma (MF) y efecto superelástico (ES). Esta transformación ... -
Caracterización microestructural y propiedades termomecánicas de las aleaciones con memoria de forma de Cu-AL-Ni, en el dominio hipoeutectoide
Egido Pérez, Nora (2017-03-24)Las aleaciones con memoria de forma (SMA) de base Cobre presentan la ventaja frente a las de base Titanio que pueden trabajar implementadas en sensores o actuadores a temperaturas superiores a 100ºC. El objetivo general ... -
Designing for Shape Memory in Additive Manufacturing of Cu–Al–Ni Shape Memory Alloy Processed by Laser Powder Bed Fusion
Pérez Cerrato, Mikel ; Fraile, Itziar; Gómez Cortés, José Fernando; Urionabarrenetxea, Ernesto; Ruiz Larrea, María Isabel; González, Iban; Nó Sánchez, María Luisa; Burgos, Nerea; San Juan Núñez, José María (MDPI, 2022-09-09)Shape memory alloys (SMAs) are functional materials that are being applied in practically all industries, from aerospace to biomedical sectors, and at present the scientific and technologic communities are looking to gain ... -
Diseño y desarrollo de nuevas aleaciones con memoria de forma, ternarias y cuaternarias, para aplicaciones tecnológicas
Las aleaciones con memoria de forma son conocidas como SMA por sus siglas en inglés (Shape Memory Alloys) y se caracterizan por tener una transformación martensítica con dos propiedades principales: memoria de forma y ... -
Dry reforming of methane over sub-stoichiometric NiAl2O4-mediated Ni/Al2O3 catalysts
Choya Atencia, Andoni ; De Rivas Martín, Beatriz; Nó Sánchez, María Luisa; Gutiérrez Ortiz, José Ignacio ; López Fonseca, Rubén (Elsevier, 2023-10-31)A series of Ni/Al2O3 catalysts were prepared from substoichiometric NiAl2O4 precursors (Ni/Al molar ratio between 0.5 and 0.05) were examined for the dry reforming of methane. The calcined spinel precursors and the ... -
Fabricación y caracterización a escala micro y nano métrica de la SMA de Cu-Al-Ni para su aplicación en MicroElectroMechanical Systems (MEMS)
Gómez Cortés, José Fernando (2017-03-31)Las aleaciones con memoria de forma SMAs (Shape Memory Alloys) presentan un gran potencial para el desarrollo de nuevos MEMS (MicroElectroMechanical Systems) que puedan cubrir la creciente demanda, de sensores y actuadores ... -
High temperature internal friction in a Ti–46Al–1Mo–0.2Si intermetallic, comparison with creep behaviour
Castillo Rodríguez, Miguel; Nó Sánchez, María Luisa; Jiménez, J. A.; Ruano, O. A.; San Juan Núñez, José María (Elsevier, 2016-01-15)Advanced gamma-TiAl based intermetallics Mo-bearing have been developed to obtain the fine-grained microstructure required for superplastic deformation to be used during further processing. In the present work we have ... -
High-pressure torsion driven phase transformations in Cu-Al-Ni shape memory alloys
Straumal, Boris B; Kilmametov, A. R.; López, Gabriel Alejandro ; López Ferreño, Iñaki; Nó Sánchez, María Luisa; San Juan Núñez, José María ; Hahn, H.; Baretzky, Brigitte (Elsevier, 2016-12-16)Severe plastic deformation (SPD) frequently induces phase transformations like decomposition of supersaturated solid solution, dissolution of precipitates, amorphization, nanocrystallization etc. Such diffusive phase ... -
High-temperature microstructure evolution of an advanced intermetallic nano-lamellar γ-TiAl-based alloy and associated diffusion processes
Nó Sánchez, María Luisa; Klein, Thomas; Clemens, Helmut; San Juan Núñez, José María (Elsevier, 2023-12)Nano-lamellar advanced γ-TiAl based alloys doped with small amounts of C and Si are being developed to improve the creep resistance in order to increase the performances of this kind of alloys applied in the low-pressure ... -
Influence of Nb on Ti Diffusion in Gamma-TiAl Intermetallics Studied by Mechanical Spectroscopy
Ibáñez Pérez, Josu; Nó Sánchez, María Luisa; Oehring, M.; Clemens, Helmut; San Juan Núñez, José María (Elsevier, 2021-01-25)The development of intermetallic titanium aluminides has been driven by the aeronautic and aerospace industries because of the excellent mechanical properties and low density of gamma-TiAl based alloys. Up to now, several ... -
Internal friction associated with ε martensite in shape memory steels produced by casting route and through additive manufacturing: Influence of thermal cycling on the martensitic transformation
Del Río, Lucía; Nó Sánchez, María Luisa; Sota, A.; Pérez Casero, I.; Gómez Cortés, José Fernando; Pérez Cerrato, Mikel ; Veiga, A.; Ruiz Larrea, María Isabel; Ausejo, S.; Burgos, Nerea; San Juan Núñez, José María (Elsevier, 2022-10)Among the different families of shape memory alloys (SMA), the Fe-Mn-Si-Cr-Ni alloys have attracted a renewed interest because of its low cost, high corrosion resistance and high recovery strength during the shape memory ... -
Ni–Ti-Hf High-Temperature Shape Memory Alloy: Measure of the Clausius-Clapeyron Coefficient Through Mechanical Spectroscopy
Pérez Cerrato, Mikel ; Maass, B.; Nó Sánchez, María Luisa; San Juan Núñez, José María (Elsevier, 2021-03-05)The martensitic transformation of Ni49.5Ti35.5Hf15 high temperature shape memory alloy is characterized by internal friction measurements. The temperatures for the reversible B2 <-> B19' transformation appear in the range ... -
Size-effect and scaling power-law for superelasticity in Shape Memory Alloys at the nano-scale
Gómez Cortés, José Fernando; Nó Sánchez, María Luisa; López Ferreño, Iñaki; Hernández-Saz, Jesús; Molina, Sergio I.; Chuvilin, Andrey; San Juan Núñez, José María (Macmillan Publishers Limited, part of Springer Nature., 2017-05-29)Shape-memory alloys capable of a superelastic stress-induced phase transformation and a high displacement actuation have promise for applications in micro-electromechanical systems for wearable healthcare and flexible ... -
Strain Relaxation in Cu-Al-Ni Shape Memory Alloys Studied by in Situ Neutron Diffraction Experiments
Ruiz Larrea, María Isabel; López Echarri, Ángel María; Gómez Cortés, José Fernando; Nó Sánchez, María Luisa; Brown, Donald W.; Balogh, Levente; Breczewski Filberek, Tomasz; San Juan Núñez, José María (American Institute of Physics, 2019-02-28)In situ neutron diffraction is used to study the strain relaxation on a single crystal and other powdered Cu-Al-Ni shape memory alloys (SMAs) around martensitic transformation temperatures. This work is focused on the ... -
Stress-assisted atomic diffusion in metastable austenite D03 phase of Cu-Al-Be shape memory alloys
López Ferreño, Iñaki; Breczewski Filberek, Tomasz; López, Gabriel Alejandro ; Nó Sánchez, María Luisa; San Juan Núñez, José María (Pergamon-Elsevier, 2016-11)Cu-Al-based shape memory alloys are firm candidates to be used up to 473 K. The main limiting aspect is the activation of diffusion processes in the metastable austenite phase, which drive the alloy decomposition. In the ... -
Studying the influence of substitutional elements on mechanical behavior of Alloy 718
Max, Bertrand; San Juan Núñez, José María ; Nó Sánchez, María Luisa; Cloué, Jean-Marc; Viguier, Bernard; Andrieu, Eric (EDP Sciences, 2014)In nickel-based superalloys, substitutional solute species have a strong impact on in service mechanical properties as well as on oxidation and corrosion resistances. In alloy 718, recent studies carried out by tensile ... -
Superelastic damping at nanoscale in ternary and quaternary Cu-based shape memory alloys
Gómez Cortés, José Fernando; Fuster, Valeria; Pérez Cerrato, Mikel ; Lorenzo García-Minguillán, Patricia; Ruiz Larrea, María Isabel; Breczewski Filberek, Tomasz; Nó Sánchez, María Luisa; San Juan Núñez, José María (Elsevier, 2021-11-25)Superelasticity is a characteristic thermomechanical property in shape memory alloys (SMA), which is due to a reversible stress-induced martensitic transformation. Nano-compression experiments made possible the study of ... -
Temperature-Dependent Anisotropic Refractive Index in β-Ga2O3: Application in Interferometric Thermometers
Carrasco, Daniel; Nieto Piñero, Eva; Alonso Orts, Manuel; Serna, Rosalía; San Juan Núñez, José María ; Nó Sánchez, María Luisa; Jesenovec, Jani; McCloy, John S.; Nogales, Emilio; Méndez, Bianchi (MDPI, 2023-03-21)An accurate knowledge of the optical properties of β-Ga2O3 is key to developing the full potential of this oxide for photonics applications. In particular, the dependence of these properties on temperature is still being ... -
The Influence of Thermal History on the Multistage Transformation of NiTi Shape-Memory Alloys
Ruiz Larrea, María Isabel; López Echarri, Ángel María; Breczewski Filberek, Tomasz; López, Gabriel Alejandro ; López Ferreño, Iñaki; Nó Sánchez, María Luisa; San Juan Núñez, José María (MDPI, 2018-04)The multistage martensitic phase transformation of a polycrystalline NiTi shape-memory alloy (50.3 at. %Ni-49.7 at. % Ti) has been studied by means of calorimetric measurements. After a conventional thermal treatment ...