Zr0.15Hf0.15Ti0.7NiSn

Zr0.15Hf0.15Ti0.7NiSn is a half-Heusler intermetallic compound, a quaternary transition-metal based alloy combining zirconium, hafnium, titanium, nickel, and tin. This material belongs to the family of half-Heusler thermoelectrics, engineered primarily for solid-state heat-to-electricity conversion and thermal management applications where low lattice thermal conductivity paired with metallic electrical properties is advantageous. The compositional tuning of this alloy—substituting hafnium and zirconium into a titanium-nickel-tin base—is a research strategy to reduce thermal conductivity while maintaining mechanical robustness, making it notable as a candidate for mid-temperature thermoelectric generators and waste-heat recovery devices where conventional approaches fall short.