Helium bubbles in alpha-irradiated aluminium: positron lifetime studies

6533b7dafe1ef96bd126f431

RESEARCH PRODUCT

Helium bubbles in alpha-irradiated aluminium: positron lifetime studies

M. D. Bentzon H. E. Hansen Risto M. Nieminen Risto Talja K. Petersen H. Rajainmäki

subject

Materials science Physics and Astronomy (miscellaneous)Annealing (metallurgy)Metals and Alloys General Engineering chemistry.chemical_element Physics::Fluid Dynamics Positron chemistry Aluminium Melting point Physics::Accelerator Physics Irradiation Atomic physics Helium

description

The formation of He-stabilised voids in aluminium single crystals injected with helium is monitored by positron lifetime measurements. The bubbles are observed to grow during annealing from 300 to 930K. The bubbles are extremely stable and survive annealing up to the melting point. Positron lifetime data are used to discuss the He density inside the bubbles and their growth mechanism.

year	journal	country	edition	language
1985-01-01	Journal of Physics F: Metal Physics

https://doi.org/10.1088/0305-4608/15/1/002

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