This study focused on the preparation of metallic uranium and uranium-zirconium alloys to measure the effect significant porosity had on thermal diffusivity from 20^∘C to 300^∘C. Precursor uranium powders were prepared through a hydride de-hydride process to obtain a $<$ 70 mesh powder. The sample compositions were uranium, uranium 5 mass% zirconium and 10 mass% zirconium. Higher porosity decreased the material's thermal conductivity. Thermal conductivity was also reduced with increased zirconium content.

中文翻译：

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粉末冶金法制备的铀金属和铀锆合金的导热系数

这项研究的重点是制备金属铀和铀-锆合金，以测量孔隙率对^20∘C至^300∘C的热扩散率的影响。通过氢化物^脱氢法制备前驱体铀粉，以获得$<$70目粉末。样品组成为铀，铀5质量％锆和10质量％锆。较高的孔隙率降低了材料的热导率。随着锆含量的增加，热导率也降低了。