Al5FeNi4

Al5FeNi4 is an intermetallic compound belonging to the aluminum-iron-nickel family, characterized by a fixed stoichiometric composition that creates an ordered crystal structure distinct from conventional solid-solution alloys. This material is primarily of research and specialty applications interest, valued in high-temperature and wear-resistant contexts where its intermetallic nature provides strength and hardness at elevated temperatures, though it typically exhibits lower ductility than conventional aluminum alloys. The Al-Fe-Ni system has attracted attention in aerospace and thermal barrier applications, and as a reinforcing phase in composite materials, where its ordered structure and thermal stability offer advantages over softer aluminum-based alternatives.