The paper overviews the properties, manufacturing processing and application of rhenium and iridium
materials. Rhenium is used as substrate of combustion chamber because of excellent performance at high temperature.
Iridium is used as oxidation resistant coating and still credible at 2 200℃, which is failure as rhenium diffusing from
interface to surface. Rhenium/ Iridium (Re/ Ir) thrust chamber can be manufactured by different processing methods,
such as CVD, PVD, PM, EL-forming, etc. The R-4D-14 445 N high performance liquid apogee engine which man-
ufactured by CVD was flight qualified for the Hughes Space and Communications 702 satellite in USA. In China, the
Re/ Ir combustion chamber manufactured by PM and PVD took hot fire test and had capability to operate in excess 25
000 s without failure