科研之友
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摘要
An analytical solution was obtained for the average contrast factor (C) over bar (hkl) of dislocations with < 001 >{100} slip-system in anisotropic cubic crystals. The expression provides the dislocation contrast factor as an explicit function of the Miller indices (hkl), the elastic anisotropy factor A(z), and the Poisson ratio nu, thus avoiding lengthy numerical calculations or approximate parametrizations. The expression was incorporated in the whole powder pattern modelling algorithm and used to study dislocations in ball milled nanocrystalline Cu(2)O.
- 出版日期2007-11
