Abstract
We discuss the question whether Bollmann's classification of triple junctions into I- and U-lines corresponds to a physical reality. We describe a virtual multiple junction of only small angle boundaries in two ways: First, by using Bollmann's I/U-line scheme (Bollmann disclinations) and second, by an elasticity approach (rotational Volterra cuts, Volterra disclinations). Depending on the number of boundaries, the multiple junction is found to be an I-line or a U-line. We conclude that the Bollmann disclination is a real crystallographic defect that is essentially different from the Volterra disclination.
Original language | English |
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Pages (from-to) | 353-356 |
Number of pages | 4 |
Journal | Materials Science Forum |
Volume | 294-296 |
State | Published - 1999 |
Keywords
- Disclinations
- Grain Boundary
- Triple Junctions