Dynamical response of helium bubble motion to irradiation with high-energy self-ions in aluminum at high temperature.

Journal Article · Sat Feb 21 00:00:00 EST 2009 · Philos. Mag.

DOI:https://doi.org/10.1080/14786430802629493· OSTI ID:1005148

Ono, K; Miyamoto, M; Arakawa, K; Birtcher, R C

Brownian-type motion of helium bubbles in aluminum and its dynamical response to irradiation with 100-keV Al{sup +} ions at high temperatures has been studied using in situ irradiation and transmission electron microscopy. It is found that, for most bubbles, the Brownian-type motion is retarded under irradiation, while the mobility returns when the irradiation is stopped. In contrast, under irradiation, a small number of bubbles display exceptionally rapid motion associated with the change in bubble size. These effects are discussed in terms of the dynamical interaction of helium bubbles with cascade damage formed by the high-energy self-ion irradiation.

• Research Organization: Argonne National Lab. (ANL), Argonne, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: DE-AC02-06CH11357
• OSTI ID: 1005148
• Report Number(s): ANL/MSD/JA-68712; TRN: US1101038
• Journal Information: Philos. Mag., Vol. 89, Issue 6 ; Feb. 21, 2009
• Country of Publication: United States
• Language: ENGLISH

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM
BUBBLES
HELIUM
IRRADIATION
BROWNIAN MOVEMENT
RESPONSE FUNCTIONS
ALUMINIUM IONS
RADIATION EFFECTS