Exploració per autor "Alcalá Cabrelles, Jorge"
Ara es mostren els items 7-15 de 15
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Incipient Plasticity of Single-Crystal Tantalum as a Function of Temperature and Orientation
Franke, O.; Alcalá Cabrelles, Jorge; Dalmau, Ramon; Duan, Zhi Chao; Biener, A.; Biener, M. M.; Hodge, A. M. (2015)
Article
Accés obertThe nanocontact plastic behaviour of single-crystalline Ta (1¿0¿0), Ta (1¿1¿0) and Ta (1¿1¿1) was studied as a function of temperature and indentation rate. Tantalum, a representative body centred cubic (BCC) metal, reveals ... -
Nanomechanics of flexoelectric switching
Alcalá Cabrelles, Jorge (2015)
Article
Accés obertWe examine the phenomenon of flexoelectric switching of polarization in ultrathin films of barium titanate induced by a tip of an atomic force microscope (AFM). The spatial distribution of the tip-induced flexoelectricity ... -
Real-time microscopy of the relaxation of a glass
Ruiz Ruiz, Marta; Vila Costa, Anna; Bar, Tapas; Rodríguez Tinoco, Cristian; Gonzalez Silveira, Marta; Plaza, Jose Antonio; Alcalá Cabrelles, Jorge; Fraxedas Calduch, Jordi; Rodríguez Viejo, Javier (Springer Nature, 2023-01-01)
Article
Accés obertThe understanding of the dynamics of a glass above its devitrification temperature remains incomplete. Here, we build a spatio-temporal map of the relaxation dynamics of a highly stable glass into its supercooled liquid ... -
Reassessing spherical indentation: Contact regimes and mechanical property extractions
Alcalá Cabrelles, Jorge; Esque de los Ojos, Daniel (2010-09-01)
Article
Accés restringit per política de l'editorial -
Sharp indentation crystal plasticity finite element simulations: Assessment of crystallographic anisotropy effects on the mechanical response of thin fcc single crystalline films
Esque de los Ojos, Daniel; Ocenášek, J.; Alcalá Cabrelles, Jorge (2014-04-15)
Article
Accés restringit per política de l'editorialContinuum crystal plasticity finite element modeling has been used to address size-effects during indentation of thin-metallic films. Berkovich indentation simulations were performed in the frame of continuum crystal ... -
Statistics of dislocation avalanches in FCC and BCC metals: dislocation mechanisms and mean swept distances across microsample sizes and temperatures
Alcalá Cabrelles, Jorge; Ocenásek, Jan; Varillas Delgado, Javier; El-Awady, Jaafar A.; Wheeler, Jeffrey; Michler, Johann (Nature, 2020-12-01)
Article
Accés obertPlastic deformation in crystalline materials consists of an ensemble of collective dislocation glide processes, which lead to strain burst emissions in micro-scale samples. To unravel the combined role of crystalline ... -
Strain hardening and dislocation avalanches in micrometer-sized dimensions
Alcalá Cabrelles, Jorge; Ocenásek, Jan; Nowag, Kai; Esque de los Ojos, Daniel; Ghisleni, Rudy; Michler, Johann (2015-06-01)
Article
Accés obertPresent experiments and computational simulations furnish a fundamental background to the understanding of plastic flow across sample sizes. It is shown that self-organized criticality (SOC) governs the size distribution ... -
Understanding imprint formation, plastic instabilities and hardness evolutions in FCC, BCC and HCP metal surfaces
Varillas Delgado, Javier; Ocenásek, Jan; Torner Ribé, Jordi; Alcalá Cabrelles, Jorge (2021-09)
Article
Accés obertNanoindentation experiments in metal surfaces are characterized by the onset of plastic instabilities along with the development of permanent nanoimprints and dense defect networks. This investigation concerns massive ... -
Unraveling deformation mechanisms around FCC and BCC nanocontacts through slip trace and pileup topography analyses
Varillas Delgado, Javier; Ocenásek, Jan; Torner Ribé, Jordi; Alcalá Cabrelles, Jorge (2017-02-15)
Article
Accés obertNanocontact loadings offer the potential to investigate crystal plasticity from surface slip trace emissions and distinct pileup patterns where individual atomic terraces arrange into hillocks and symmetric rosettes. Our ...