Mechanisms of microcrack growth in magnesium oxide crystals
- 1 March 1962
- journal article
- research article
- Published by Taylor & Francis in Philosophical Magazine
- Vol. 7 (75), 393-413
- https://doi.org/10.1080/14786436208212173
Abstract
The dislocation movements associated with microcrack growth in ascleaved single crystals of magnesium oxide have been revealed by recording the associated birefringence changes in ciné-film and by post-fracture examination. The observations suggest a mechanism by which cracks well below the critical Griffith size may grow; the mechanism is not exclusive however and the conditions under which other mechanisms may operate are discussed.Keywords
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