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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

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
Sciences du Vivant/Sciences pharmaceutiques

Physique/Physique/Instrumentations et Détecteurs
radiation effects in insulators – phase transitions