Projection of the liquidus surface of the Co – Sb – Pb ternary intermetallic system

Bonding and high-temperature reliability of NiFeMo alloy/n-type PbTe joints for thermoelectric module applications

“…4a suggests that a eutectic liquid phase between NiFeMo foil and PbTe might form during the bonding process. The melting point of PbTe is 924°C, and based on the literature, the eutectic temperature of FePbTe (16 at.% Fe) is 857°C [14] while the eutectic temperature of Ni-PbTe (8 at.% Ni) is 624°C [15]. According to our bonding experiment of Fe/PbTe joints, the eutectic temperature of PbTe-Fe should be above 800°C, which is consistent with the aforementioned literature value.…”