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Raman spectroscopic investigation of graphitization of diamond during spark plasma sintering of UO2-diamond composite nuclear fuel.
- Source :
-
Journal of Nuclear Materials . Jul2016, Vol. 475, p1-5. 5p. - Publication Year :
- 2016
-
Abstract
- Micro-Raman spectroscopy (MRS) was utilized to investigate the graphitization of diamond particles within a UO 2 -diamond composite processed by spark plasma sintering (SPS). While pure diamond gives a sharp Raman peak at 1331.6 cm −1 , the graphitized diamond shows broad peaks either at 1350 cm −1 (G-peak) or 1580 cm −1 (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 UO 2 -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 UO 2 -diamond composite nuclear fuel. [ABSTRACT FROM AUTHOR]
- Subjects :
- *RAMAN spectroscopy
*GRAPHITIZATION
*SINTERING
*URANIUM compounds
*NUCLEAR fuels
Subjects
Details
- Language :
- English
- ISSN :
- 00223115
- Volume :
- 475
- Database :
- Academic Search Index
- Journal :
- Journal of Nuclear Materials
- Publication Type :
- Academic Journal
- Accession number :
- 115823356
- Full Text :
- https://doi.org/10.1016/j.jnucmat.2016.03.015