Twinning and extended defects in hcp metals with large  c / a  ratio: modelling and microscopic observations | Zendy

Béré A. | Zendy; Braisaz T. | Zendy; Ruterana P. | Zendy; Nouet G. | Zendy

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Twinning and extended defects in hcp metals with large c / a ratio: modelling and microscopic observations

Author(s) -

Béré A.,

Braisaz T.,

Ruterana P.,

Nouet G.

Publication year - 2005

Publication title -

physica status solidi (a)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.532

H-Index - 104

eISSN - 1862-6319

pISSN - 1862-6300

DOI - 10.1002/pssa.200521252

Subject(s) - crystal twinning , hexagonal crystal system , stacking , bar (unit) , materials science , crystallography , axial ratio , condensed matter physics , chemistry , physics , microstructure , optics , organic chemistry , meteorology , circular polarization , microstrip

In hexagonal metals of largest c / a ratio, experimental observations hardly agree with the theoretical models of extended defects. For Zn and Cd, we have developed a semi‐empirical tight‐binding method to calculate the energy of extended defects. It was then possible to obtain a good correlation for polytypes or basal stacking faults. For the (10 $ \bar 1 $ 2) twin, two possible interfaces have been shown to be stable in agreement with the available experimental results for Zn. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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