Abstract

The present work illustrates the use of water-soluble cupric salts as ingredients of binder for injection molding of W-10 wt% Cu. Parts produced are dense, homogeneous and have good surface finish, compared to those produced using conventional binder system. This new binder system provides also process-simplification benefit. CuCl_2;and;Cu(NO_3)_2 with the purity of 98% was selected for this study. Rapid sintering process involving thermal decomposing was successful in densification for 1h. Final density that is about 93% of theoretical value could be obtained, and are distinguishable from conventionally processed W-Cu composites.

• Keywords: Injection molding;Cupric salts;W-Cu;Sintering;