The effect of helium implantation fluences on He bubble nucleation and growth mechanisms in nuclear borosilicate glass has been characterized using in-situ transmission electron microscopy experiments. Observations of implanted glass at 143 K indicate that a helium concentration of around 3 at.% is required to nucleate a significant density of nanosized bubbles. He bubble growth is observed for concentration higher than the number of host sites (>4 at.%). These results highlight the large capacity of the glassy network for incorporating helium atoms.
|Number of pages||4|
|Journal||Journal of Nuclear Materials|
|Early online date||16 Jun 2014|
|Publication status||Published - 1 Sep 2014|
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- Department of Engineering and Technology - Research Professor
- Ion Beam Centre - Director