Abstract
The thermal conductivity of condensed matter can be reduced through the introduction of isotopic disorder as the different isotopes act as mass defects that scatter phonons responsible for the transfer of heat energy. Here we investigate, using classical molecular dynamic simulations, the magnitude of this effect in the ceramic oxide Li 2O, which will be artificially enriched with 6Li to improve tritium breeding potential in a future fusion reactor. The results show that while the isotope effect will be important at lower temperatures it has little influence at the expected operating temperatures of the breeder blanket.
| Original language | English |
|---|---|
| Pages (from-to) | 1834-1838 |
| Number of pages | 5 |
| Journal | Fusion Engineering and Design |
| Volume | 87 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 2012 |
Bibliographical note
Cited By :4Export Date: 10 July 2018
CODEN: FEDEE
Correspondence Address: Murphy, S.T.; Department of Materials, Imperial College London, London, SW7 2AZ, United Kingdom; email: [email protected]
Keywords
- Breeder blanket
- Fusion
- Molecular dynamics
- Phonon
- Breeder blankets
- Ceramic oxides
- Classical molecular dynamics
- Condensed matter
- Heat energy
- Isotope effect
- Isotopic disorder
- Mass defect
- Operating temperature
- Tritium breeding
- Breeder reactors
- Breeding blankets
- Carrier mobility
- Computer simulation
- Fusion reactions
- Fusion reactors
- Isotopes
- Phonons
- Thermal conductivity