Journal of Materials Science, Vol.36, No.6, 1383-1387, 2001
Joining ceramic to metal using a powder metallurgy method for high temperature applications
Fecralloy was successfully joined to calcia stabilised zirconia (CSZ) using a mixture of Fe, Cr and Al powders as a brazing filler and a screen printing and powder metallurgy method. The joining process was achieved at 1000 degreesC for 5 h in vacuum. During the joining process the filler wetted the surfaces of the CSZ and the Fercalloy foil, and formed a Fe(Cr, Al) alloy. The joint produced using the filler of (Fe-30Cr-5Al)-0.06 (Y2O3) (wt.%) showed good thermal stability and good thermal cycling oxidation resistance at temperatures up to 850 degreesC in air, even though the joint contained some porosity.