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Effect of Storage Temperature on Self-Irradiation Damage of 238PU-Substituted Zirconolite*
Published online by Cambridge University Press: 21 February 2011
Abstract
238Pu-substituted cubic zirconolite (CaPuTi2 O7) was stored at ambient temperature, 575 K and 875 K until alpha decay doses of 2.4 to 3.6 × 1025/m3 had been accumulated. The ambient temperature material swelled to a saturation value of 5.5 vol%, and the originally crystalline structure was transformed to one with an amorphous matrix and small domains that had retained their crystallinity. At 575 K lesser amounts of swelling (4.1 vol%) and transformation were observed, reflecting concurrent partial recovery. The material held at 875 K remained crystalline, swelled only 0.4 vol%, and exhibited formation of isolated defect clusters.
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- Copyright © Materials Research Society 1983
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Work performed under the auspices of the U. S. Department of Energy.
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