“…[
16–19 ] In particular, transition metal carbides such as tantalum carbide (TaC) and hafnium carbide (HfC) have gained significant interest because they possess the highest melting temperatures, above 4000 K, among transition metal carbides. [
20 ] TaC and HfC crystallize in the cubic rock‐salt (
) structure and exhibit mixed covalent, ionic, and metallic bonding, [
21 ] which gives rise to high thermal conductivity (≈55.8 W m −1 ⋅ K), [
22 ] significant flexural strength (≈500 MPa), [
23,24 ] and relatively high hardness (≈15 GPa). [
25,26 ] These carbides can also form a passive oxide surface layer that provides some oxidation resistance.…”