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Title: Effects of heat treatments on the thermal diffusivity of Uranium-Molybdenum alloy
Title of periodic: Journal of Physics: Conference Series
Authors: Camarano, Denise das Mêrces
Mansur, F.A.
Santos, Ana Maria Matildes dos
Ferraz, Wilmar Barbosa
Pedrosa, Tércio Assunção
Affiliation: Centro de Desenvolvimento da Tecnologia Nuclear, CDTN, Belo Horizonte, MG, Brasil
Issue Date: 2016
Keywords: Molybdenum;Nuclear fuels;Heat treatments
Abstract: U-Mo alloys are the most investigated nuclear fuel material to be used in research reactors. The addition of molybdenum stabilizes the gamma phase of uranium and increases its melting point. A research program under development at Nuclear Technology Development Center (CDTN) aims the obtaining of uranium-molybdenum alloys to enable the high enriched uranium (HEU) to low enriched uranium (LEU) conversions. U-Mo ingots with 10% by weight were induction melted and heat treated at 300 °C for 72 h, 120 h and 240 h. Thermal diffusivity was determined by the laser flash method and thermal quadrupole method, from room temperature to 300 °C and 400°C. It was observed that the thermal diffusivity tends to increase with increasing temperature.
Access: L
Appears in Collections:Artigo de periódico

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