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The geometry of dislocation loops generated in α‐iron by 1 MeV electron irradiation at 550°C
Author(s) -
Little E. A.,
Eyre B. L.
Publication year - 1973
Publication title -
journal of microscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.569
H-Index - 111
eISSN - 1365-2818
pISSN - 0022-2720
DOI - 10.1111/j.1365-2818.1973.tb03764.x
Subject(s) - burgers vector , dislocation , nucleation , electron microscope , irradiation , acceleration voltage , materials science , electron , crystallography , electron beam processing , loop (graph theory) , enhanced data rates for gsm evolution , cathode ray , electron diffraction , geometry , diffraction , condensed matter physics , chemistry , physics , optics , nuclear physics , mathematics , thermodynamics , telecommunications , combinatorics , computer science
SUMMARY Rectilinear dislocation loops are observed to grow in thin foils of α‐iron during 1 MeV electron irradiation at 550°C in the beam of a high voltage electron microscope. A diffraction analysis indicates that the loops have sides parallel to <100> directions and are pure edge with a <100> Burgers vector. Only interstitial type loops have been identified. The geometry of the loops can be accounted for by an established model of loop nucleation.