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Conference object . 2008
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Estudio de los mecanismos de fractura durante el proceso de oxigenación del YBa2Cu3O7-d (YBCO)

Authors: Roa Rovira, Joan Josep; Capdevila, X.G.; Segarra, M.;

Estudio de los mecanismos de fractura durante el proceso de oxigenación del YBa2Cu3O7-d (YBCO)

Abstract

Estudio del proceso de fractura en el plano cristalográfico 001 (ab) durante el proceso de oxigenación de materiales superconductores de YBa2Cu3O7-δ (YBCO, a menudo conocido como Y123) mediante nanoindentación a temperatura ambiente; las muestras se han estudiado a diferentes cargas aplicadas: 5, 10, 30 y 100 mN. Este estudio ha sido realizado en muestras monocristalinas con estructura tetragonal, texturadas mediante la técnica de crecimiento inducido por semilla (Top seeding melt growth, TSMG) obteniendo la fase Ortorrómbica tras el tratamiento de oxigenación. Los valores de dureza se han calculado a partir de las ecuaciones de Oliver y Pharr para ambas fases observándose una disminución de los valores para la fase ortorrómbica debido a la fragilización del material durante el proceso de oxigenación (formación de microgrietas). La caracterización microestructural de las probetas de estudio se ha realizado mediante microscopia de barrido (FE-SEM) y microscopia de transmisión (TEM).

Country
Spain
Related Organizations
Keywords

Àrees temàtiques de la UPC::Enginyeria dels materials, Superconductors d'alta temperatura -- Propietats mecàniques

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average