Experimental evidence for ‘buckle, ruck and tuck’ in neutron irradiated graphite
The current mainstream theory for radiation-induced dimensional change of nuclear graphite is based on the notion that interstitially displaced carbon atoms will coalesce into dislocation loops (i.e., additional basal planes). This standard atomic-displacement model has been challenged by theories based on first principles calculations. Furthermore, the so-called ‘ruck and tuck’ of basal planes has been proposed as an alternative mechanism to explain the observed c-axis expansion under irradiation; however, no such defects have been observed experimentally so far. In this study, the first experimental evidence for the presence of a ‘ruck and tuck’ defect in high-temperature neutron-irradiated nuclear graphite is introduced.
- Research Organization:
- Boise State Univ., ID (United States); Idaho National Laboratory (INL), Idaho Falls, ID (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC); USDOE Office of Nuclear Energy (NE), Fuel Cycle Technologies (NE-5)
- Grant/Contract Number:
- SC0016427; AC07-05ID14517
- OSTI ID:
- 1593346
- Alternate ID(s):
- OSTI ID: 1601834
- Report Number(s):
- INL-JOU--20-57498
- Journal Information:
- Carbon, Journal Name: Carbon Vol. 159; ISSN 0008-6223
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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