Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1503399 | Scripta Materialia | 2007 | 4 Pages |
Abstract
Fully dense hetero-nanostructured (i.e. containing intermixed nano and micrometric grains) metallic (FeAl) materials can be successfully produced by spark plasma sintering (SPS) when mechanically milled nanostructured powders are used. This is due to the large temperature differences generated during the SPS runs, which modify locally the recrystallization response of the heavily deformed structure during sintering. Y2O3 addition delays the onset of recrystallization and, thereby, produces microstructures containing more than 80% of sub-500 nm grains.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Thierry Grosdidier, Gang Ji, Sébastien Launois,