references: - Y.S. Touloukian et al., TPRC Data Series Volume 1. Thermal conductivity - metallic elements and alloys, IFI/Plenum, 1970, fit to Tab. 61R (T_min=100K, T_max=400K) - https://www.engineeringtoolbox.com/specific-heat-metals-d_152.html K_11: 7.414e+1 K_11,T: -6.465e-2 K_11,T^2: 2.066e-4 K_33: 5.147e+1 K_33,T: -4.506e-2 K_33,T^2: 1.435e-4 T_ref: 293.15 C_p: 210.0