The threshold energy for defect production in SiC: A molecular dynamic study
Creators
- 1. Lawrence Livermore National Lab., CA (United States)
- 2. Universidad Politecnica de Madrid (Spain). Instituto de Fusion Nuclear
Description
We discuss the results of molecular dynamics computer simulation studies of the threshold energy for defect production in β-SiC. The simulations are performed with the Tersoff potential for SiC which provides accurate values of many of its defect properties. In addition, we show that it properly describes the melting behavior of SiC. Simulations were carried out for Si and C recoils in 3 dimensional cubic computational cells with periodic boundary conditions and up to 4096 atoms. The results show anisotropy in the threshold for Si and C recoils as well as for the recoil direction. The lowest threshold is 25 eV for C recoils along [111] and the highest is 85 eV for Si recoils along [110]. Details of the defect configurations obtained will be discussed
Availability note (English)
MF available from INIS under the Report Number; Also available from OSTI as DE94007123; NTIS; US Govt. Printing Office Dep.Files
25042584.pdf
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Additional details
Publishing Information
- Imprint Pagination
- 13 p.
- Report number
- UCRL-JC--114789
Conference
- Title
- 6. international conference on fusion reactor materials.
- Dates
- 27 Sep - 1 Oct 1993.
- Place
- Stresa (Italy).
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 25042584
- Subject category
- S70: PLASMA PHYSICS AND FUSION TECHNOLOGY; S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- COMPUTERIZED SIMULATION; DAMAGING NEUTRON FLUENCE; DEFECTS; DYNAMICS; FIRST WALL; MOLECULES; PHYSICAL RADIATION EFFECTS; SILICON CARBIDES; TEMPERATURE DEPENDENCE; THERMONUCLEAR REACTOR MATERIALS; THRESHOLD ENERGY
- Descriptors DEC
- CARBIDES; CARBON COMPOUNDS; ENERGY; MATERIALS; MECHANICS; NEUTRON FLUENCE; RADIATION EFFECTS; SILICON COMPOUNDS; SIMULATION; THERMONUCLEAR REACTOR WALLS
Optional Information
- Contract/Grant/Project number
- Contract W-7405-ENG-48
- Funding organization
- USDOE, Washington, DC (United States).
- Secondary number(s)
- CONF-930928--28.