Molybdenum copper alloy has more excellent performances than molybdenum, so it can be used as high temperature part of rockets and missiles.
Molybdenum copper has high thermal conductivity because of the use of molybdenum and copper without sintering additives. Thermal expansion matching that of ceramic materials or semiconductor is the reason for molybdenum copper used in spaceflight. molybdenum copper
Another reason for molybdenum copper used in spaceflight is that molybdenum copper has high melting point, and it also have good mechanical ability, which is beneficial for manufacturing.