The extent of spreading by particles in grain boundaries
β Scribed by Frederick G. Hochgraf
- Publisher
- Elsevier Science
- Year
- 1976
- Weight
- 407 KB
- Volume
- 9
- Category
- Article
- ISSN
- 0026-0800
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Ahatraet-A study has been made using transmission electron microscopy of the pinning of grain boundaries in aluminium during grain growth by fine dispersions of alumina particles. The boundary parameters have been determined with precision and the pinning effects measured using an approach due to As
Using the unit operations that produce arbitrary topological transfo~ations in a 4-connected space-filling structure of trivalent convex polyhedra it is shown that the average number of faces, F, in the individual cells (grain boundaries in isolated grains) cannot be smaller than eight. This result