Positron annihilation spectroscopy of Uranium Molybdenum alloys

11th International Workshop on Positron and Positronium Chemistry

物理学;化学

Mukherjee, S.^1 ; Sharma, S.K.^1 ; Sinha, V.^2 ; Pujari, P.K.^1

Radiochemistry Division, Bhabha Atomic Research Center, Mumbai

400085, India^1

Metallic Fuels Division, Bhabha Atomic Research Center, Mumbai

400085, India^2

关键词: As-cast;    Bulk lifetime;    Defect sites;    Mo concentration;    Positron lifetime;    UMo alloy;    Uniform distribution;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/618/1/012019/pdf
DOI  :  10.1088/1742-6596/618/1/012019

来源: IOP

【 摘 要 】

Positron annihilation spectroscopy has been carried out on as-cast and heat treated U-Mo alloys with Mo concentration varying from 8-10 wt. %. The positron lifetime data suggest that, upon heat treatment at 900 °C, the bulk lifetime decreases. The chemical surrounding of the positron annihilation sites is similar for the as-cast and heat treated samples suggesting a uniform distribution of Mo around defect sites.