Jointing of C/ SiC鄄metal is the key technique of C/ SiC composites nozzle. This paper introduced the
analysis and research experiments of chemical vapor deposit Nb(CVD Nb) and brazing which are two kind of general
jointing methods of C/ SiC鄄metal on Shanghai Institute of Space Propulsion. The existing problems, their solutions and
further developing emphases were also presented. Moreover, this paper discussed non鄄destructive testing(NDT) meth鄄
od of CT to C/ SiC nozzle weld jointed with metal, and results showed that micro鄄focus CT had more test effect, which
can provide reliable evidence to jointed C/ SiC nozzle products.