دورية أكاديمية
An In Situ transmission electron microscopy study on the synergistic effects of Au-ion irradiation and high temperature on nuclear graphite microstructure
| العنوان: | An In Situ transmission electron microscopy study on the synergistic effects of Au-ion irradiation and high temperature on nuclear graphite microstructure |
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| المؤلفون: | Melonie P Thomas, Ryan Schoell, Md Abu Jafar Rasel, Md Hafijur Rahman, Winson Kuo, John Watt, Stephen House, Khalid Hattar, William Windes, Aman Haque |
| المصدر: | Materials Research Express, Vol 11, Iss 4, p 045601 (2024) |
| بيانات النشر: | IOP Publishing, 2024. |
| سنة النشر: | 2024 |
| المجموعة: | LCC:Materials of engineering and construction. Mechanics of materials LCC:Chemical technology |
| مصطلحات موضوعية: | layered solids, graphite, heavy ion irradiation, thermal expansion coefficient, Mrozowski cracks, in situ transmission electron microscopy, Materials of engineering and construction. Mechanics of materials, TA401-492, Chemical technology, TP1-1185 |
| الوصف: | The combined effects of high-temperature and heavy-ion irradiation on Mrozowski cracks (MC) and nuclear graphite crystallographic dimensions have been studied using in situ heating and in situ ion-irradiation in the transmission electron microscope (TEM). Electron transparent lamella of nuclear graphite, IG-110, was irradiated using a 2.8 MeV Au beam at an ion flux of 3.991 ×10 ^10 ion cm ^−2 s ^−1 for 70 min at 800 °C. Upon high-temperature irradiation, Mrozowski crack closure was studied quantitatively. The analysis showed linear, positive expansion of nuclear graphite which is significantly different from the dimensional changes previously reported for low-dose neutron irradiation of nuclear graphite in which the material undergoes negative to positive expansion via a turnaround radiation dose. The trend of the thermal expansion coefficient (CTE) of pristine IG-110 in this study is consistent with previous reports in the 100 °C–800 °C temperature region in which the dimensional change ranges from negative to positive values. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2053-1591 |
| Relation: | https://doaj.org/toc/2053-1591 |
| DOI: | 10.1088/2053-1591/ad37a6 |
| URL الوصول: | https://doaj.org/article/7fa1fb22d910442fbc79385c3b85eb11 |
| رقم الأكسشن: | edsdoj.7fa1fb22d910442fbc79385c3b85eb11 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 20531591 |
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| DOI: | 10.1088/2053-1591/ad37a6 |