Al4 Au16

Al₄Au₁₆ is an intermetallic compound combining aluminum and gold in a fixed stoichiometric ratio, representing a research-phase material rather than a widely commercialized engineering alloy. This compound belongs to the Al-Au phase diagram family and is primarily of interest in materials science for understanding phase equilibria, crystal structure, and potential high-temperature or specialized electronic applications. Its notable characteristics stem from gold's high density and thermal stability combined with aluminum's low density, though practical engineering adoption remains limited due to cost and the specialized nature of gold-containing alloys.