Co4N

Co₄N is a cobalt nitride intermetallic compound that forms a metallic phase combining cobalt with nitrogen, typically studied as a potential high-performance material for applications requiring wear resistance and catalytic activity. This material is primarily of research and emerging industrial interest rather than a commodity engineering material, with investigation focused on electrochemistry, surface hardening, and catalytic applications where cobalt nitrides offer advantages over pure cobalt or conventional tool coatings.