Journal
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
Volume 246, Issue 2, Pages 379-386Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.nimb.2005.12.053
Keywords
glass; irradiation effect; hardness; nanoindentation; deposited energy
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The effects of elastic and inelastic interactions induced by cumulative alpha decay on the hardness of R7T7-type nuclear containment glass were investigated on actinide-doped glass specimens and by external irradiation of inactive glass by light and heavy ions. Vickers microindentation and nanoindentation hardness measurements showed that in the deposited energy range investigated (below 3 x 10(22) keV/cm(3)) inelastic effects have no influence on the plastic response of the glass. Conversely, identical hardness variations versus the nuclear energy deposited in the material were observed on curium-doped glass and on glass irradiated by ion bombardment. The observed hardness variation stabilized after the deposited energy reached about 3 x 10(20) keV(nucl)/cm(3). These findings indicate that the change in the plastic response of the glass is a consequence of ballistic effects. (c) 2006 Elsevier B.V. All rights reserved.
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