Influence of copper content on the property of Cu–W alloy prepared by microwave vacuum infiltration sintering

• Cu–W alloy was prepared under vacuum conditions through microwave infiltration sintering.
• The phase of alloy with Cu content of 5% and 8% is mainly Cu0.4W0.6.
• With the increasing of copper content, porosity of Cu–W alloy decreased obviously.
• The copper components coated better on the tungsten particles utilization of microwave infiltration sintering.

Cu–W alloy was prepared by utilizing microwave vacuum infiltration sintering furnace to assess the influence of different proportions of copper on the structure of Cu–W alloy. The microstructures of alloy and infiltration characteristics of Cu–W alloy were characterized using metallographic microscopy and scanning electron microscopy, while XRD was utilized to identify the structure changes. The pore distribution was also assessed. Experimental results showed that Cu–W alloy could be quickly prepared under vacuum conditions through microwave infiltration sintering with the main phase of alloy being Cu0.4W0.6 (PDF:50-1451) indicating stronger combination of tungsten and copper.