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The Structure of High‐Angle Grain Boundaries in Aluminium
Author(s) -
Levy J.
Publication year - 1969
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.19690310123
Subject(s) - grain boundary , tilt (camera) , aluminium , materials science , geometry , crystallography , lattice (music) , transmission electron microscopy , boundary (topology) , grain boundary strengthening , condensed matter physics , metallurgy , microstructure , physics , mathematics , chemistry , mathematical analysis , nanotechnology , acoustics
A transmission electron‐microscopy study of high‐angle grain boundaries has been made. When thin foils are cut in precisely oriented bicrystals of aluminium, some details of the grain‐boundary structure appear. Micrographs of symmetrical tilt boundaries around [001] show linear defects parallel to the tilt axis. Their properties are tightly bound to the geometry of the bicrystal: this provides a good support to the idea of a transitional lattice as a structure of a high‐angle boundary. A theoretical interpretation of these observations is developed essentially on geometrical considerations.