| Autor: |
Ming-Bo Qi, Peng-Fei Lian, Peng-Da Li, He-Yao Zhang, Jin-Xing Cheng, Qing-Bo Wang, Zhong-Feng Tang, T. J. Pan, Jin-Liang Song, Zhan-Jun Liu |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
C, Vol 9, Iss 3, p 81 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2311-5629 |
| DOI: |
10.3390/c9030081 |
| Popis: |
The diffusion behavior of iodine in micro/nano-porous graphite under high-temperature conditions was studied using analysis methods such as Rutherford backscattering Spectrometry, scanning electron microscopy, X-ray diffraction, and Raman spectroscopy. The results indicate that iodine diffusion leads to the Lattice Contractions in Microcrystals, a decrease in interlayer spacing, and a rise of defect density. And the reversal or repair of microstructure change was observed: the microcrystal size of the graphite increases, the interlayer spacing appears to return to the initial state, and the defect density decreases, upon diffusion of iodine out of iodine-loaded graphite. The comparative study comparing the iodine diffusion performance of nanoporous graphite (G400 and G450) between microporous graphite (G500), showed that nanoporous graphite exhibits a better barrier to the iodine diffusion. The study on the diffusion behavior of iodine in micro/nano-porous graphite holds substantial academic and engineering value for the screening, design, and performance optimization of nuclear graphite. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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