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Now showing items 11-20 of 56
The aperiodic nature of mullite
(2018-11-30)
Different methods were applied to investigate the vacancy and Al/Si order in mullite. At first the symmetry was analysed thoroughly to derive constraints on the vacancy distribution based on crystal chemical premises. On ...
Sistema de compensación simplificado del desvío semicircular para bitácora con compás de clase 'A'
(2016-03-18)
Nuevo sistema de compensación para agujas náuticas tipo 'A' destinado a sustituir al convencional constituido por: barra Flinders, esferas, imán de escora e imanes correctores longitudinales y transversales. Debido a que ...
Functional bent-core liquid crystals studied through second harmonic generation and X-ray diffraction
(Servicio Editorial de la Universidad del País Vasco/Euskal Herriko Unibertsitatearen Argitalpen Zerbitzua, 2009-10-25)
Los moléculas mesógenas con forma de banana (bent-core) dan lugar a nuevas fases
cristal líquido con diversas funcionalidades de interés en aplicaciones tecnológicas. En
esta tesis se han estudiado y caracterizado nuevos ...
Long-living carriers in a strong electron-phonon interacting two-dimensional doped semiconductor
(Nature Publishing Group, 2019-07-15)
Carrier doping by the electric field effect has emerged as an ideal route for monitoring many-body physics in two-dimensional materials where the Fermi level is tuned so that the strength of the interactions can also be ...
Study of Li metal anode surface. interaction with atmospheric gases and impact of impurities in electrochemistry
(2020-05-19)
La ganancia de cuota del mercado de vehículos eléctricos es esencial si se pretenden mitigar las consecuencias del efecto invernadero causadas, entre otros factores, por las emisiones de gases de vehículos de motor térmico. ...
Surfaces and interfaces in thin-film and conventional li-ion batteries
(2019-10-22)
En esta tesis doctoral titulada "Surfaces and Interfaces in Thin-Film and Conventional Li-ion Batteries" se presentan los resultados del trabajo experimental realizado en relación a materiales del estado del arte en baterías ...
High temperature internal friction in a Ti–46Al–1Mo–0.2Si intermetallic, comparison with creep behaviour
(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 ...
Stress-assisted atomic diffusion in metastable austenite D03 phase of Cu-Al-Be shape memory alloys
(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 ...
Elaboración y caracterización de aleaciones con memoria de forma monocristalinas de Cu-Al-Ni y Cu-Al-Be para altas temperaturas
(2015-06-25)
Las aleaciones con memoria de forma son materiales inteligentes que secaracterizan por una transformación martensítica termoelástica entre una fase austenitade alta temperatura y una fase martensita de baja temperatura. ...
Universal Scaling Law for the Size Effect on Superelasticity at the Nanoscale Promotes the Use of Shape‐Memory Alloys in Stretchable Devices
(Wiley, 2020-02)
Shape-memory alloys (SMAs) are the most stretchable metallic materials thanks to their superelastic behavior associated with the stress-induced martensitic transformation. This property makes SMAs of potential interest for ...