Constant based on thermal properties of the surrounding or adjacent materials.

Symbol
$A_{\mathrm{k}}$
Unit
(mm²/s)½
Formulae
$\frac{C_{\mathrm{k1}} \sqrt{\frac{\sigma_{\mathrm{ki}}}{\rho_{\mathrm{ki}}}}}{\sigma_{\mathrm{kc}}}$
Related
$C_{\mathrm{k1}}$
$\rho_{\mathrm{ki}}$
$\sigma_{\mathrm{kc}}$
$\sigma_{\mathrm{ki}}$
Used in
$\epsilon_{\mathrm{k}}$