| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1498758 | Scripta Materialia | 2013 | 4 Pages |
Abstract
Contrary to current understanding, an apparently stable single-phase quadrijunction, and one lacking any low-energy grain boundary member, has been experimentally observed during grain switching in large (∼mm) grained pure annealed aluminum. Electropolishing below the quadrijunction revealed a 3-D microstructure characterized by a rapidly shrinking grain with a faceted boundary indicating a significant anisotropy of energy and/or mobility. This unusual occurrence is described in detail in the expectation that a reasonable model for this observation might be found.
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Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Siddhartha Pathak, Roger D. Doherty, Anthony D. Rollett, Johann Michler, Kilian Wasmer,