Micro-cracks and their relation to flow and fracture in single crystals of magnesium oxide
Journal Article
·
· Philosophical Magazine
Evidence on mechanisms of fracture in single crystals of MgO subjected to tensile loading is given. As-cleaved crystals contain micro-cracks typically 10-4 in. long, and slip originating from near these cracks occurs during deformation. At a later stage the cracks grow gradually until they increase to a critical size when catastrophic propagation occurs. If the cracks are removed by polishing, ductility is enhanced five to ten times. Some crystals were reactor irradiated to doses in the range 1O14 to 1019 nvt (epithermal), and the effects of this treatment on flow and fracture are described and discussed.
- Research Organization:
- Atomic Energy Research Establishment, Harwell, Berks, Eng.
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-14-024638
- OSTI ID:
- 4152934
- Journal Information:
- Philosophical Magazine, Journal Name: Philosophical Magazine Journal Issue: 55 Vol. 5; ISSN 0031-8086
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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