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Ability of cubic zirconia to accommodate radiation damage

Abstract : Cubic zirconia irradiated with medium-energy heavy ions exhibits a three-step damage build-up. Each step is characterized by radiation-defect reorganization that occurs to lower the system energy. The last step at high irradiation fluence is characterized by a quite unusual decrease in the damage fraction, during which the formation of defect-depleted regions is clearly evidenced. This surprising partial damage recovery is associated with a decrease in the density of tangled dislocations, which tend to form long dislocations that act as defect sinks.
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Submitted on : Friday, June 10, 2011 - 10:13:27 AM
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A. Debelle, S. Moll, B. Decamps, A. Declemy, L. Thome, et al.. Ability of cubic zirconia to accommodate radiation damage. Scripta Materialia, Elsevier, 2010, 63, pp.665-668. ⟨10.1016/j.scriptamat.2010.05.032⟩. ⟨in2p3-00599562⟩



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