Author/Authors :
Nishi، نويسنده , , Tsuyoshi and Takano، نويسنده , , Masahide and Itoh، نويسنده , , Akinori and Akabori، نويسنده , , Mitsuo and Arai، نويسنده , , Yasuo and Minato، نويسنده , , Kazuo and Numata، نويسنده , , Masami، نويسنده ,
Abstract :
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 AmO2−x decreased with increasing temperature. The thermal conductivity of AmO2−x was estimated from the measured thermal diffusivity, the specific heat capacity and the bulk density. It was found that the thermal conductivity of AmO2−x decreased with increasing temperature in 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 AmO2−x.
