Table 7:
Composition of TRISO particle [
10
].
Layer
Material
Outer radius
Vol. Frac.
Thermal conductivity
(
μ
m)
(%)
(W m
−1
K
−1
)
Kernel
UN
350
36.4
Temperature dependent
Buffer
Low-density PyC
400
18.0
0.5
Inner PyC
High-density PyC
435
15.6
4
SiC Coating
SiC
470
18.3
Temperature dependent
Outer PyC
High-density PyC
490
11.8
4