کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7963951 | 1514167 | 2016 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A novel method for stoichiometric reduction of (U3O8,PuO2) and its controlled oxidation using microwave
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی هسته ای و مهندسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: A novel method for stoichiometric reduction of (U3O8,PuO2) and its controlled oxidation using microwave A novel method for stoichiometric reduction of (U3O8,PuO2) and its controlled oxidation using microwave](/preview/png/7963951.png)
چکیده انگلیسی
We report a process for stoichiometric reduction of U3O8 and (U3O8,PuO2) mixed oxide powders using an indigenously developed 2.4 GHz microwave processing system. The process parameters were optimized by interpreting reduction kinetic curves at a temperature which is 150 °C lower than the conventional reduction. The process improved the sinterability of the powder which was evaluated in terms of average particle size, BET specific surface area and bulk density. A quick method for controlled oxidation of the reduced powder to incorporate a controlled amount of hyper-stoichiometry was demonstrated by modifying the same reduction process. The percent reduction was measured experimentally using O:(U + Pu) ratio. The X-ray diffraction analysis confirmed the various phases present. The process is novel considering shorter processing cycle, lower temperature processing, improved powder properties, energy efficiency and cost effectiveness.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Nuclear Materials - Volume 479, October 2016, Pages 145-151
Journal: Journal of Nuclear Materials - Volume 479, October 2016, Pages 145-151
نویسندگان
G. Singh, Pradeep Kumar, S. Aher, P. Purohit, P.M. Khot, Amrit Prakash, D.K. Das, P.G. Behere, Mohd Afzal,