Abstract
The possibility of the existence of stacking faults in the (110) plane in α-uranium has been investigated. Different stacking faults introduced by insertion or removal of a plane or by a partial slip are described at length. The conditions of stability against further dissociation for all perfect and imperfect dislocations considered here are derived, using both anisotropic and isotropic elasticity theory. For the extended dislocation the equilibrium width of a stacking fault is calculated in terms of the stacking fault energy. The calculations have been carried out for dissociations of dislocations in the (110) as well as in the (001) planes. The maximum stacking fault energy that would allow the corresponding dissociations is also evaluated. Under certain assumptions the temperature dependence of the equilibrium width of an extended dislocation has also been estimated.
Published Version
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