Munoz, Nicole E. ; Gilliss, Shelley R. ; Ravishankar, N. ; Carter, C. Barry (2002) Investigation of surface grooves from migrating grain boundaries MRS Online Proceedings Library, 750 . No pp. given. ISSN 1946-4274
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Official URL: https://www.cambridge.org/core/journals/mrs-online...
Related URL: http://dx.doi.org/10.1557/PROC-750-Y8.39
Abstract
Visible-light microscopy (VLM) and atomic-force microscopy (AFM) were used to study the progression of grain-boundary grooving and migration in high-purity alumina (Lucalox™). Groove profiles from the same grain boundaries were revisited using AFM following successive heat-treatments. The grooves measured from migrating grain boundaries were found to have asymmetric partial-angles compared to those measured from boundaries that did not migrate during the experiment. For a moving boundary, the grain with the larger partial-angle was consistently found to grow into the grain with the smaller partial-angle. Migrating boundaries were observed to leave behind remnant thermal grooves. The observations indicate that the boundary may be bowing out during the migration process.
Item Type: | Article |
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Source: | Copyright of this article belongs to Cambridge University Press. |
ID Code: | 104758 |
Deposited On: | 01 Feb 2018 15:21 |
Last Modified: | 01 Feb 2018 15:21 |
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