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Mostrando ítems 1-10 de 42
Artículo
Espectroscopia de impedancía de monocristales 4.7 mol% Y-PSZ
(Sociedad Española de Cerámica y Vidrio, 1995)
El ajuste mediante el método Rietveld del espectro de difracción de rayos-X de un monocristal Zr02-4.7mol%Y203, muestra la existencia de una microestructura de dos fases t+t'. Los espectros de impedancia de este material ...
Artículo
Ionic conductivity of ZrO2-12 mol% Y2O3 single crystals
(APS Physics, 1993)
Fast ionic conductors are important to study because of their use in the construction of technologically useful devices such as electrochemical cells, oxygen monitors, and the high-temperature fuel cell. Oxygen-ion conductors ...
Artículo
Configuración de fisuras en Y-FSZ
(1990)
La microdureza Vickers de monocristales de 4.5 mol % de Y-PSZ ha sido estudiada hasta temperaturas de 1000QC. Se utilizaron dos clases de muestras: brutas de fabricación y sometidas a un tratamiento de recocido (envejecido) ...
Artículo
Study of a diastereoisomeric dihydrothiophene derivative at 150 K
(International Union of Crystallography, 1999)
Artículo
Low-frequency excitations in a molecular glass: Single-particle dynamics
(American Institute of Physics Publising LLC, 1992)
The low-frequency dynamics of a molecular glass former has been investigated by means of inelastic neutron scattering from a mostly incoherent sample as well as by computer molecular-dynamics simulation. The mode assignments ...
Artículo
Low-frequency excitations in glassy selenium: A comparison of neutron-scattering and molecular-dynamics results
(American Institute of Physics Publising LLC, 1993)
The microscopic low-frequency dynamics of glassy selenium is investigated by means of the concurrent use of neutron inelastic scattering and computer simulations. A separation of the dynamic response in terms of intra- and ...
Artículo
Thermal transport in glassy selenium: The role of low-frequency librations
(American Institute of Physics Publising LLC, 1994)
The experimental curves giving the temperature dependence of the thermal conductivity of glassy selenium are considered in detail. The observed behavior can be taken into account quantitatively if the densities of states ...
Artículo
Artículo
Respuesta eléctrica de Nanocristales ZrO2-3mol% Y2O3
(Sociedad Española de Cerámica y Vidrio, 1999)
Se ha estudiado la evolución con los tratamientos térmicos de la microestructura y el comportamiento eléctrico de nanocristales ZrO2 – 3mol% Y2O3.La muestra, que inicialmente estaba compuesta por 77.8%wt de fase tetragonal ...
Artículo
Dependence of exchange anisotropy and coercivity on the Fe–oxide structure in oxygen-passivated Fe nanoparticles
(American Institute of Physics, 1999)
Ultrafine Fe particles have been prepared by the inert gas condensation method and subsequently oxygen passivated. The as-obtained particles consist in an Fe core surrounded by an amorphous Fe-oxide surface layer. The ...