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HVEM In‐situ Straining Experiments on MgO Specimens Predeformed at High Temperature
Author(s) -
Appel F.,
Berezhkova G. V.,
Messerschmidt U.,
Perstnev P. P.,
Rozhanskii V. N.
Publication year - 1981
Publication title -
kristall und technik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0023-4753
DOI - 10.1002/crat.19810161113
Subject(s) - materials science , dislocation , deformation (meteorology) , homogeneous , plasticity , in situ , electron microscope , composite material , crystallography , metallurgy , optics , thermodynamics , chemistry , physics , organic chemistry
Abstract A deformation of MgO crystals at high temperature significantly increases the plasticity in a subsequent deformation at room temperture. It was shown by deformation experiments inside the high voltage electron microscope the this effects is most probably due to the homogeneous dislocation structure formed by straining at high temperature, but not to change in the processes controlling the mobility of individual dislocations.