Deuterium uptake and sputtering of simultaneous lithiated, boronized, and oxidized carbon surfaces irradiated by low-energy deuterium
- Stony Brook Univ., NY (United States)
- Univ. of Illinois, Urbana-Champaign, IL (United States)
- Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
- Purdue Univ., West Lafayette, IN (United States)
- Pennsylvania State Univ., University Park, PA (United States)
We study the effects of deuterium irradiation on D-uptake by simultaneously boronized, lithiated, oxidized, and deuterated carbon surfaces. We present analysis of the bonding chemistry of D for various concentrations of boron, lithium, oxygen, and deuterium on carbon surfaces using molecular dynamics with reactive force field potentials, which are here adapted to include the interaction of boron and lithium. We calculate D retention and sputtering yields of each constituent of the Li-C-B-O mixture and discuss the role of oxygen in these processes. The extent of the qualitative agreement between new experimental data for B-C-O-D obtained in this paper and computational data is provided. As in the case of the Li-C-O system, comparative studies where experimental and computational data complement each other (in this case on the B-Li-C-O system) provide deeper insights into the mechanisms behind the role that O plays in the retention of D, a relevant issue in fusion machines.
- Research Organization:
- Univ. of Illinois at Urbana-Champaign, IL (United States); State Univ. of New York (SUNY), Albany, NY (United States); Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- Grant/Contract Number:
- SC0010717; SC0013752; SC0014264
- OSTI ID:
- 1540190
- Alternate ID(s):
- OSTI ID: 1437522
- Journal Information:
- Journal of Applied Physics, Vol. 123, Issue 19; ISSN 0021-8979
- Publisher:
- American Institute of Physics (AIP)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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