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. © 2008 Elsevier B.V. All rights reserved.
Original language | English |
---|---|
Pages (from-to) | 35-39 |
Number of pages | 4 |
Journal | Journal of Nuclear Materials |
Volume | 378 |
Issue number | 1 |
DOIs | |
Publication status | Published - 15 Aug 2008 |