Defocus convergent beam electron diffraction determination of Burgers vectors of dislocations in quasicrystals

✍ Scribed by Renhui Wang

• Book ID: 104369229
• Publisher: Elsevier Science
• Year: 2000
• Tongue: English
• Weight: 819 KB
• Volume: 31
• Category: Article
• ISSN: 0968-4328
• DOI: 10.1016/s0968-4328(99)00127-4

✦ Synopsis

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.