Preparation of Cu coated ZrW2O8 composite powders via heterogeneous precipitation process

ZrW2O8 powder was prepared by the solid-state method. A heterogeneous precipitation process was developed to fabricate Cu coated ZrW2O8 composite powders based on a cementation process under 100°C SEM and XRD were applied to assess the coating quality as well as the phase composition. The result shows that the mean size of ZrW 2O8 powders is less than 2 microns. The nanometer compounds are easier formed on the surface of the spheric agglomerated ZrW 2O8 powders. The Cu coated ZrW2O8 composite powders can be obtained with flowing hydrogen at 300°C.