Properties and rapid consolidation of nanostructured MgO–MgAl2O4 composites

The rapid sintering of nanostructured MgO–MgAl2O4 composites was investigated with a high-frequency induction heated sintering process. The advantage of this process is that it allows for very quick densification to near theoretical density and prohibits grain growth in nanostructured materials. Highly dense nanostructured MgO–MgAl2O4 composites were produced with simultaneous application of 80 MPa pressure and an induced output current of total power capacity (15 kW) within 2 min. The sintering behaviors, grain sizes and mechanical properties of MgO–MgAl2O4 composites were investigated.