Abstract
It is well known that Bollmann's O-lattice theory is a good geometrical model for explaining the structures of grain boundaries in cubic crystal systems. In this experiment we have studied the structure of a low angle from boundary in zinc in order to examine the validity of O-lattice theory in hexagonal-closed-packed crystals. The low-angle tilt boundary contains a dislocation array with a unusually large Burgers vector [0001] (0.495 nm) and an unexpected step configuration. The Burgers vector of the principal dislocation array as well as that of the step dislocation, the dislocation spacing, and the average boundary plane of this observed boundary show strong agreement with those calculated from O-lattice theory, but the present theory is shown to be insufficient to predict the structure of the boundary.
| Original language | English |
|---|---|
| Pages (from-to) | 2359-2363 |
| Journal | Metallurgical transactions. A, Physical metallurgy and materials science |
| Volume | 19 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - Sept 1988 |
| Externally published | Yes |
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