. 2020 Aug 24;135:110254. doi: 10.1016/j.rser.2020.110254

Table 9.

The mathematical equations of the WO₃ properties [92].

Description	Equations
The WO₃ density	$ρ_{n f} = ρ_{n p} (ϕ) + ρ_{b f} (1 - ϕ)$
The WO₃ heat capacity	$(ρ C_{p}) {(ρ C_{p})}_{n f} = (ρ C_{p}) {(ρ C_{p})}_{n p} (ϕ) + {(ρ C_{b f})}_{b f} (1 - ϕ)$
The WO₃ thermal conductivity	$k_{nf} = k_{b f} \frac{[k_{n p} + (n - 1) k_{b f} - (n - 1) ϕ (k_{b f} - k_{n p})}{[k_{n p} + (n - 1) k_{b f} + ϕ (k_{b f} - k_{n p})]}$