Abstract
Prototypic pebbles composed of Be12V showing no peritectic reaction during cooling were successfully fabricated without homogenization. These Be12V prototypic pebbles were found to have a good oxidation resistance. BeO layer on the surface of Be12V pebbles was found to act as a protective barrier preventing the hydrogen generation reaction. Thus, the effect of BeO layer as a surface modification of beryllide was evaluated. Using surface-modified pebbles, hydrogen generation experiments were repetitively (3 times) carried out at 1273K for 24h. The hydrogen generation rate was nearly reduced to the background level by this surface modification. Thus, surface-modified Be12V pebbles showing no-hydrogen generation reaction were successfully fabricated.
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