| 1 | Twinning in Intermetallic Compounds Are Long Shear Vectors and/or Shuffles Really Necessary?显示文摘In this paper the geometric description and general theory of mechanical twinning are reviewed, the twins in general lattices and superlattices are summarized, and the kinetic process by which mechanical twins form is revisited. A case study of mechanical twinning of HfV2+Nb, (cubic) Laves phase, is presented and the synchroshear of selected atomic layers is proposed to explain the physical process of twin formation. If the twins form in this way, then long shear vectors and / or atomicshuffles are not really necessary. | F.M.Chu David P.Pope Dept.of Materials Science and Engineering,University of Pennsylvania,Philadelphia,PA 19104,USA | 1993 | Journal of Materials Science & Technology1993，9，5： | 4 |
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