TEM study of the dislocations generated by hydrogen absorption/desorption in LaNi<sub>5</sub> and derivatives

Décamps, B.; Joubert, J.-M.; Cerny, Radovan; Percheron-Guégan, A.

doi:10.1016/j.jallcom.2004.12.162

Scientific article

English

TEM study of the dislocations generated by hydrogen absorption/desorption in LaNi₅ and derivatives

ContributorsDécamps, B.; Joubert, J.-M.; Cerny, Radovan; Percheron-Guégan, A.

Published inJournal of alloys and compounds, vol. 404-406, p. 570-575

Publication date2005

Abstract

The combination of bright-field and weak-beam transmission electron microscopy (TEM) techniques has been used to analyse the dislocation systems activated in LaNi5 and derivatives after hydrogen absorption/desorption cycling. The TEM results are discussed and compared with those obtained from the modelling of the anisotropic diffraction peak broadening using only two dislocation slip systems of the hexagonal structure.

Keywords

Electrode materials
Hydrogen storage materials
Scanning and transmission electron microscopy
Dislocations and disclinations
X-ray diffraction

Affiliation entities

Faculté des sciences / Section de physique / Département de physique de la matière quantique

Research groups

Groupe Cerny

Citation (ISO format)

DÉCAMPS, B. et al. TEM study of the dislocations generated by hydrogen absorption/desorption in LaNi₅ and derivatives. In: Journal of alloys and compounds, 2005, vol. 404-406, p. 570–575. doi: 10.1016/j.jallcom.2004.12.162

Article (Published version)

Identifiers

PID : unige:35492
DOI : 10.1016/j.jallcom.2004.12.162

Commercial URLhttp://linkinghub.elsevier.com/retrieve/pii/S0925838805008790

Journal ISSN0925-8388

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TEM study of the dislocations generated by hydrogen absorption/desorption in LaNi5 and derivatives

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TEM study of the dislocations generated by hydrogen absorption/desorption in LaNi₅ and derivatives