| Title |
Fabrication and Properties of Nanostructured 3Ti-2Al2O3 Composites by a Pulsed Current Activated Sintering Method |
| Authors |
박나라(Na Ra Park); 손인진(In Jin Shon) |
| DOI |
https://doi.org/10.3365/KJMM.2013.51.11.821 |
| ISSN |
1738-8228(ISSN), 2288-8241(eISSN) |
| Keywords |
composite; 3Ti-2Al2O3; sintering; nanomaterials; mechanical properties |
| Abstract |
Nanopowders of TiO2 and Al were prepared from a high energy ball milling method to fabricate sintered 3Ti-Al2O3 composites with nanostructures. A dense nanocrystalline 3Ti-2Al2O3 composite was consolidated by a pulsed current activated sintering method from the mechanically activated powder. Consolidation of dense 3Ti-Al2O3 composites with a relative density of up to 99% was accomplished under the combined contribution of a pulsed current and a mechanical pressure of 60 MPa. The hardness and fracture toughness of the fabricated composites were 1207 kg/mm2 and 7 MPa￥m1/2, respectively. |