title: Defocus convergent beam electron diffraction determination of Burgers vectors of dislocations in quasicrystals
abstract: Principles, method and some application examples of determining Burgers vectors of dislocations in crystals and quasicrystals by means of defocus convergent-beam electron diffraction (CBED) technique are described and reviewed and compared with contrast experiment techniques. By using defocus CBED technique, dislocation reactions during high-temperature plastic deformation of face-centered icosahedral quasicrystals have been studied. These studies lead to a preliminary understanding to the micromechanism of high-temperature plastic deformation of quasicrystals.
authors.affiliation: Department of Physics, Wuhan University, People's Republic of China.
authors.initials: R
authors.lastname: Wang