Abstract
On the preparetion of Ti(C0.7N0.3)-19 mass%Mo2C-24 mass%Ni cermet, solid paraffin, liquid paraffin and wax-emulsion were selected for the aid of press-molding. The properties of green and sintered compacts using these molding aids were investigated. The obtained results were summrized as follows. (1) As the result of thermal dewaxing for φ 50 mm×H 50 mm columnar-shaped green compact, the cracks on the compact after dewaxed was hard to occur using liquid paraffin and wax-emulsion. (2) The green compact by wax-emulsion had higher bending strength than those by other molding aids. (3) The sintered compact by liquid paraffin had more homogeneous microstructure and higher transverse rapture strength of 1.59 GPa than those by other molding aids. (4) The addition of deflocculant to the wax-emulsion decreased the viscosity of suraly after wet milling and enhanced the transverse rapture strength of the sintered compact to 1.88 GPa.
