Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1503258 | Scripta Materialia | 2007 | 4 Pages |
Abstract
The development of porosity at 1000 °C in an oxide dispersion-strengthened ferritic alloy containing nanoscale (∼2–4 nm) oxide particles is investigated. A comparison with an alloy fabricated by internal oxidation instead of mechanical alloying demonstrates that the porosity formation is associated with mechanical alloying of the alloy powder with Y2O3 in argon. The pores grow in spite of a submicron grain size suggesting that the grain boundaries are not effective paths for removing entrapped gas from the pores.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
J.H. Schneibel, C.T. Liu, D.T. Hoelzer, M.J. Mills, P. Sarosi, T. Hayashi, U. Wendt, H. Heyse,