A zonal dislocation mechanism for rhombohedral twinning in sapphire (α-Al2O3)
✍ Scribed by Geipel, T.; Lagerlöf, K.P.D.; Pirouz, P.; Heuer, A.H.
- Book ID
- 122726656
- Publisher
- Elsevier Science
- Year
- 1994
- Weight
- 1007 KB
- Volume
- 42
- Category
- Article
- ISSN
- 0956-7151
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📜 SIMILAR VOLUMES
The local interfacial structure and bonding at the rhombohedral twin interface in α-Al 2 O 3 (corundum) was studied by means of first-principles electronic-structure calculations based on the local density functional theory. Two sets of geometrical interface models were selected, one with a terminat
The properties of sapphire (a-Al 2 O 3 ) predeformed at T = 1450 °C by h1 0 1 0i{1 2 1 0} prism plane slip and subsequently deformed in h1 2 1 0i(0 0 0 1) basal slip between 1050 and 1250 °C were investigated. The critical resolved shear stress in basal slip was increased with respect to the non-pre