کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7964266 | 1514171 | 2016 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Raman spectroscopic investigation of graphitization of diamond during spark plasma sintering of UO2-diamond composite nuclear fuel
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی هسته ای و مهندسی
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چکیده انگلیسی
Micro-Raman spectroscopy (MRS) was utilized to investigate the graphitization of diamond particles within a UO2-diamond composite processed by spark plasma sintering (SPS). While pure diamond gives a sharp Raman peak at 1331.6Â cmâ1, the graphitized diamond shows broad peaks either at 1350Â cmâ1 (G-peak) or 1580Â cmâ1 (D-peak). The degree of graphitization was quantified by calculating the area beneath the diamond and graphite peaks. It was found that more than 20% of diamond was graphitized on the surface of the UO2-diamond pellet and only around 10% diamond was graphitized in the interior regions of the pellet. This current study highlights the necessity to review the implications of these results carefully while implementing UO2-diamond composite nuclear fuel.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Nuclear Materials - Volume 475, July 2016, Pages 1-5
Journal: Journal of Nuclear Materials - Volume 475, July 2016, Pages 1-5
نویسندگان
Zhichao Chen, Ghatu Subhash, James S. Tulenko,