  High entropy materials (HEMs) are of great interest for their mechanical,
chemical and electronic properties. In this paper we analyse (TaNbHfTiZr)C, a
carbide type of HEM, both in crystalline and amorphous phases, using density
functional theory (DFT). We find that the relaxed lattice volume of the
amorphous phase is larger, while its bulk modulus is lower, than that of its
crystalline counterpart. Both phases are metallic with all the transition
metals contributing similarly to the density of states (DOS) close to the Fermi
level, with Ti and Nb giving the proportionally largest contribution of states.
We confirm that despite its great structural complexity, 2x2x2 supercells are
large enough for reliable simulation of the presented mechanical and electronic
properties by DFT.
