Memorias de investigación
Artículos en revistas:
Elastic (stress-strain) halo associated to ion-induced nano-tracks in lithium niobate: role of crystal anisotropy
Año:2011
Áreas de investigación
  • Ingenierías
Datos
Descripción
The elastic strain/stress fields (halo) around a compressed amorphous nano-track (core) caused by a single high-energy ion impact on LiNbO3 are calculated. A method is developed to approximately account for the effects of crystal anisotropy of LiNbO3 (symmetry 3m) on the stress fields for tracks oriented along the crystal axes (X, Y or Z). It only considers the zero-order (axial) harmonic contribution to the displacement field in the perpendicular plane and uses effective Poisson moduli for each particular orientation. The anisotropy is relatively small; however, it accounts for some differential features obtained for irradiations along the crystallographic axes X, Y and Z. In particular, the irradiation-induced disorder (including halo) and the associated surface swelling appear to be higher for irradiations along the X- or Y -axis in comparison with those along the Z-axis. Other irradiation effects can be explained by the model, e.g. fracture patterns or the morphology of pores after chemical etching of tracks. Moreover, it offers interesting predictions on the effect of irradiation on lattice parameters.
Internacional
Si
JCR del ISI
Si
Título de la revista
JOURNAL OF PHYSICS D: APPLIED PHYSICS
ISSN
1361-6463
Factor de impacto JCR
0
Información de impacto
Volumen
44
DOI
doi:10.1088/0022-3727/44/47/475301
Número de revista
Desde la página
0
Hasta la página
11
Mes
SIN MES
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Participantes
  • Autor: Antonio Juan Rivera de Mena UPM
  • Autor: G. García ALBA Synchrotron Light Facility
  • Autor: J. Olivares Centro de Microanálisis de Materiales, UAM
  • Autor: M.L. Crespillo Centro de Microanálisis de Materiales, UAM
  • Autor: F. Agulló-López Centro de Microanálisis de Materiales, UAM
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Fusión Nuclear Inercial y Tecnología de fusión
  • Centro o Instituto I+D+i: Instituto de Fusión Nuclear