Structural stability of ZnAl2O4 spinel irradiated by low energy particles

D. Simeone; Gianguido Baldinozzi; Dominique Gosset; Mickaël Dollé; L. Thomé; Léo Mazérolles

HAL : hal-00115273, version 1

DOI : 10.1016/j.nimb.2006.04.094

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Nuclear Instruments and Methods in Physics Research Research Section B: Beam Interactions with Materials and Atoms 250 (2006) 119-122

Structural stability of ZnAl2O4 spinel irradiated by low energy particles

D. Simeone¹, Gianguido Baldinozzi², Dominique Gosset¹, Mickaël Dollé¹, L. Thomé³, Léo Mazérolles⁴

(2006)

It is now well known that irradiation of metals and alloys can drive materials into complex configurations. Several examples, like the occurrence of order-disorder phase transitions driven by irradiation, are discussed by many authors. To understand the behavior of ceramics under irradiation, several spinels were irradiated. In this paper, experimental results on the irradiation of ZnAl2O4 by lowenergy particles (4 MeV Au2+ ions) are presented. An order-disorder phase transition is observed. The unusual behavior of this spinel under irradiation is discussed within the framework of Martin's theory of driven alloys under irradiation.

1 :	LA2M - Laboratoire d'Analyse Microstructurale des Matériaux

2 :	SPMS - Laboratoire Structures, Propriétés et Modélisation des solides

3 :	CSNSM - Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse

4 :	CECM - Centre d'études de chimie métallurgique

Domaine

Sciences du Vivant/Sciences pharmaceutiques

Physique/Physique/Instrumentations et Détecteurs

Mots Clés : radiation effects in insulators – phase transitions


hal-00115273, version 1
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Contributeur : Oualid Jouini <>
Soumis le : Lundi 20 Novembre 2006, 19:18:15
Dernière modification le : Jeudi 31 Mai 2007, 17:48:21