Single‐Source Precursor Synthesis of a Compositionally Complex Early Transitional Metal Carbonitride (Ti,Zr,Hf,Nb,Ta)N_xC_1‐x

Compositionally complex transitional metal nitrides are possible candidates for ultra‐high temperature usage and are known for their superior properties due to the high configuration entropy. It is often difficult to synthesize pure metal nitrides in bulk, due to significant oxygen contamination; hence, they are synthesized mainly as thin films through magnetron sputtering, CVD or surface nitridation of high entropy alloys. The present paper reports on a single‐phase compositionally complex ceramic, i.e., (Ti0.2Zr0.2Hf0.2Nb0.2Ta0.2)NxC1‐x, that was synthesized for the first time by employing an organometallic precursor route and using a double ammonolysis process. A multidisciplinary approach was performed to study these compositionally complex nitride and carbonitride systems, including experimental and theoretical investigations.This article is protected by copyright. All rights reserved.