Patent ID: 8070042
Filing Date: 2011-12-06
Classification: B23K

Abstract:
1. A process for joining a stainless steel part and a silicon carbide ceramic part, comprising steps of: providing a stainless steel part, a SiC ceramic part, and a Al foil; bringing surfaces of the stainless steel part, SiC ceramic part, and Al foil into contact, with the aluminum foil inserted between the stainless steel part and SiC ceramic part; applying a pulsed electric current to the stainless steel part, SiC ceramic part, and Al foil, heating the stainless steel part, SiC ceramic part, and Al foil to a joining temperature of about 500-650° C., and simultaneously applying a joining pressure of about 50-100 MPa to the stainless steel part, SiC ceramic part, and Al foil while the current is applied, and maintaining the joining temperature and the joining pressure for about 10-30 minutes.