K2TiBe

K2TiBe is an experimental intermetallic compound combining potassium, titanium, and beryllium—a rare combination that falls outside conventional commercial alloy systems. This material represents research into lightweight metallic compounds, though it remains primarily of academic interest rather than established industrial use. The unusual ternary composition suggests potential exploration in ultra-lightweight structural applications, though practical manufacturing, cost, and handling challenges (particularly beryllium toxicity) have limited real-world deployment.