Preparation and Characterisation of Technetium Metal and Technetium-ruthenium Alloys
نویسندگان
چکیده
Technetium metal and Tc-Ru alloys were characterised to build a database of the Tc metal target for transmutation. The lattice parameters of Tc-Ru alloys including Tc and Ru metals measured by X-ray diffraction decrease with increasing Ru concentration. The thermal conductivity of Tc-Ru alloys including Tc and Ru metals was determined by the thermal diffusivity measured by the laser flash method from room temperature to about 1 200 K. The thermal conductivity of Tc metal shows a minimum around 400 K, above which it increases with temperature. The thermal conductivity of Tc metal is smaller than that of Ru metal and the thermal conductivity of Tc-25% Ru, Tc-50% Ru and Tc-75% Ru alloys increases with temperature as well as Ru concentration.
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