Abstract
Thermal conductivity of pyrolytic carbon and silicon carbide coatings on spherical particles has been mapped using time-domain thermoreflectance. The thermal conductivities measured for pyrolytic carbon ranged between 3.4 and 13.5 W/m K. The effect of porosity, pore-size distribution, anisotropy, in-plane disorder and domain sizes is discussed. A thermal conductivity of 168 W/m K was obtained for SiC. Mapping of the thermal conductivity of coated fuel particles provides useful data for modeling fuel performance during the operation of nuclear reactors.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 35-39 |
| Number of pages | 5 |
| Journal | Journal of Nuclear Materials |
| Volume | 378 |
| Issue number | 1 |
| DOIs | |
| State | Published - Aug 15 2008 |
ASJC Scopus subject areas
- Nuclear and High Energy Physics
- Materials Science(all)
- Nuclear Energy and Engineering
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López-Honorato, E., Chiritescu, C., Xiao, P., Cahill, D. G., Marsh, G., & Abram, T. J. (2008). Thermal conductivity mapping of pyrolytic carbon and silicon carbide coatings on simulated fuel particles by time-domain thermoreflectance. Journal of Nuclear Materials, 378(1), 35-39. https://doi.org/10.1016/j.jnucmat.2008.04.007