Radiation effects in actinide host phases
作者:
W.J. Weber,
H.J. Matzke,
期刊:
Radiation Effects
(Taylor Available online 1986)
卷期:
Volume 98,
issue 1-4
页码: 93-99
ISSN:0033-7579
年代: 1986
DOI:10.1080/00337578608206101
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
Three crystalline ceramic materials, which occur as host phases for the long-lived actinides in many nuclear waste formulations, were doped with Cm-244, and the effects of self-radiation damage from alpha decay on microstructure and physical properties were investigated. The irradiation-induced micro- structure consists of individual amorphous tracks from both the alpha-recoil particles and the spontaneous fission fragments. The overlap of the tracks at higher doses leads to a completely amorphous state at a cumulative dose of 1.3–2.3 × 1025alpha decays/m3. This radiation-induced amorphization process results in a stored energy of ∼ 128 J/g, 5–10% swelling, factor of 10–50 increase in leachability, and an increase in fracture toughness.
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