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Report No.

Thermal conductivity of AmO$$_{2-x}$$

Nishi, Tsuyoshi; Takano, Masahide ; Ito, Akinori; Akabori, Mitsuo; Arai, Yasuo; Minato, Kazuo ; Numata, Masami

The thermal diffusivity of americium oxide was determined in the temperature range from 299 to 1473 K by a laser flash method. The thermal diffusivity of AmO$$_{2-x}$$ decreased with increasing temperature. The thermal conductivity of AmO$$_{2-x}$$ was estimated from the measured thermal diffusivity, the specific heat capacity and the bulk density. It was found that the thermal conductivity of AmO$$_{2-x}$$ decreased with increasing temperature over the temperature range investigated. It was also found that the decrease in O/Am ratio during the thermal diffusivity measurements under vacuum resulted in a slight decrease in thermal conductivity of AmO$$_{2-x}$$.



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Category:Materials Science, Multidisciplinary



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