These compounds are known for their extreme hardness, high melting points, chemical inertness and strength. Tantalum carbide and hafnium carbide have the highest melting points of any binary compounds ...
In the paper, scientists used a new technology and synthesized carbide from titanium, zirconium, niobium, hafnium, and tantalum (TiZrNbHfTaС 5), as well as carbonitride from these components.