Rapid Consolidation of Nanocrystalline Al2O3 Reinforced Cr Composite from Mechanically Alloyed Powders by Pulsed Current Activated Sintering
| Periodical | Advanced Materials Research (Volumes 123 - 125) |
|---|---|
| Main Theme | Multi-Functional Materials and Structures III |
| Edited by | Joong Hee Lee |
| Pages | 197-200 |
| DOI | 10.4028/www.scientific.net/AMR.123-125.197 |
| Citation | In Jin Shon et al., 2010, Advanced Materials Research, 123-125, 197 |
| Online since | August, 2010 |
| Authors | In Jin Shon, Hyun Su Kang, Dong Mok Lee, Kwon Il Na, In Yong Ko |
| Keywords | Composite Material, Cr-Al2O3, Mechanical Property, Nanophases, Sintering |
| Price | US$ 28,- |
Nanopowders of Cr and Al2O3 was fabricated from CrO3 and 2Al by high energy ball milling. Dense nanocrystalline Cr-Al2O3 composite was consolidated by pulsed current activated sintering (PCAS) method within 1 min from mechanically alloyed powders. Highly dense Cr-Al2O3 with relative density of up to 99% was produced under simultaneous application of a 80 MPa pressure and the pulsed current. The average grain size and mechanical properties of the composite were investigated.