Pulsed Current Activated Synthesis and Consolidation of Nanostuctured MgTiO₃ Compound

Abstract

Nanopowders of MgO and TiO₂ were made by high energy ball milling. The rapid synthesis and sintering of nanostuctured MgTiO₃ compound was investigated by the pulsed current activated sintering process. The advantage of this process is that it allows very quick densification to near theoretical density and inhibition of grain growth. Highly dense nanostructured MgTiO₃ compound was produced with simultaneous application of 80 MPa pressure and pulsed current of 2800 A within 2 min. The sintering behavior, gain size and mechanical properties of MgTiO₃ compound was investigated.