Size dependent enhancement of helium ion irradiation tolerance in sputtered Cu/V nanolaminates

E.G. Fu, X. Zhang, J. Carter, L. Shao, G. Swadener, A. Misra, H. Wang

Research output: Contribution to journalArticle

Abstract

We have investigated the evolution of radiation damage and changes in hardness of sputter-deposited Cu/V nanolaminates upon room temperature helium ion irradiation. As the individual layer thickness decreases from 200 to 5 nm, helium bubble density and radiation hardening both decrease. The magnitude of radiation hardening becomes negligible for individual layer thickness of 2.5 nm or less. These observations indicate that nearly immiscible Cu/V interface can effectively absorb radiation-induced point defects and reduce their concentrations.
Original languageEnglish
Pages (from-to)629-632
Number of pages4
JournalJournal of Nuclear Materials
Volume385
Issue number3
Early online date31 Dec 2008
DOIs
Publication statusPublished - 15 Apr 2009

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