The atomic structure of a [100], 45° twist plus 17.5° tilt grain boundary in aluminium by high-resolution electron microscopy

M. Shamsuzzoha; D. J. Smith; P. A. Deymier

doi:10.1080/01418619108204870

The atomic structure of a [100], 45° twist plus 17.5° tilt grain boundary in aluminium by high-resolution electron microscopy

M. Shamsuzzoha, D. J. Smith, P. A. Deymier

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

A [100], 45° twist plus 17.5° tilt mixed character aperiodic grain boundary in aluminium has been studied by high-resolution electron microscopy. Most of the boundary is asymmetric and exhibits coherency and/or anticoherency dislocations due to lattice mismatch across the interface. The boundary structure was found to be constituted of two basic structural units and could not be characterized on the basis of coincident-site lattice, displacement shift complete and the O-lattice geometric models of grain boundaries. Steps and microfacets observed at the boundary have also been characterized within the framework of the same structural unit model.

Original language	English (US)
Pages (from-to)	719-733
Number of pages	15
Journal	Philosophical Magazine A: Physics of Condensed Matter, Structure, Defects and Mechanical Properties
Volume	64
Issue number	3
DOIs	https://doi.org/10.1080/01418619108204870
State	Published - Sep 1991

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
General Materials Science
Condensed Matter Physics
Physics and Astronomy (miscellaneous)
Metals and Alloys

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10.1080/01418619108204870

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The atomic structure of a [100], 45° twist plus 17.5° tilt grain boundary in aluminium by high-resolution electron microscopy. / Shamsuzzoha, M.; Smith, D. J.; Deymier, P. A.
In: Philosophical Magazine A: Physics of Condensed Matter, Structure, Defects and Mechanical Properties, Vol. 64, No. 3, 09.1991, p. 719-733.

Research output: Contribution to journal › Article › peer-review

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abstract = "A [100], 45° twist plus 17.5° tilt mixed character aperiodic grain boundary in aluminium has been studied by high-resolution electron microscopy. Most of the boundary is asymmetric and exhibits coherency and/or anticoherency dislocations due to lattice mismatch across the interface. The boundary structure was found to be constituted of two basic structural units and could not be characterized on the basis of coincident-site lattice, displacement shift complete and the O-lattice geometric models of grain boundaries. Steps and microfacets observed at the boundary have also been characterized within the framework of the same structural unit model.",

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note = "Funding Information: This research utilized the Facility for High Resolution Electron Microscopy in the Center for Solid State Science at Arizona State University, established with support from the National Science Foundation (Grant No. DMR-86-11609). The authors also acknowledge the receipt of financial support from the US. Department of Energy under Contract No. DE-FG02-87ER45285.",

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The atomic structure of a [100], 45° twist plus 17.5° tilt grain boundary in aluminium by high-resolution electron microscopy

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