▎ 摘　　要

In order to clarify the densification behavior of new Ag-graphene composites prepared by low-pressure compressing and vacuum sintering, Ag-graphene mixed powders with different graphene contents from 0.5 wt% to 2.0 wt% were prepared by 24 h of ball milling and subsequently double action compressed and vacuum sintered. The densities of composites were measured after compressing and sintering, and the compressibility and sinterability of the composites at varying compaction pressures and sintering temperatures were also investigated. The results show that the compaction data of all Ag-graphene powders are fitted to the Balshin equation. The densification parameter (K values) increases with the increase of the graphene contents which indicates the increase of plastic deformation capacity. The Ag-0.5wt% graphene composite has the best sinterability. The composite with 1.5 wt% graphene exhibit much enhanced mechanical properties, whose, a tensile strength reaches to 252 MPa.