Fabrice Guittonneau

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Ultrasound treatment was used to study the decrease of the granulometry of graphite, due to the cavitation, which allows the erosion by separating grains. At a smaller scale, cavitation bubble implosion tears apart graphite sheets as shown by HRTEM, while HO(*) and H(*) radicals produced from water sonolysis, generate oxidative and reductive reactions on(More)
Considering the need to reduce waste production and greenhouse emissions by still keeping high energy efficiency, various 4 th generation nuclear energy systems have been proposed. As far as graphite moderated reactors are concerned, one of the key issues is the large volumes of irradiated graphite encountered (1770 m 3 for fuel elements and 840 m 3 for(More)
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