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Characterization of Contacting Boundaries between Nanoparticles with LACBED

Published online by Cambridge University Press:  23 May 2003

Yiming Yao  and
Anders R. Thölén
Yiming Yao
Affiliation:
Experimental Physics, Chalmers University of Technology, SE-41296, Göteborg, Sweden
Anders R. Thölén
Affiliation:
Experimental Physics, Chalmers University of Technology, SE-41296, Göteborg, Sweden
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Abstract

The boundary parameters between contacting spherical bcc-Fe particles have been characterized with the Large Angle Convergent Beam Electron Diffraction (LACBED) technique. The average accuracy of measurements can reach 0.07°. The rotation parameters are interpreted using matrix algebra and evaluated according to the CSL model. The deviation between the experimental results and the reference misorientations given in the CSL model is determined. It is possible to reveal preferential misorientations between irregularly shaped particles with a size less than 100 nm. The method can be applied to nanoparticles and nanocrystalline materials with a wide range of grain orientations, and it is possible to modify it into an automatic method for TEM measurements.

Keywords

LACBEDnanoparticlescontactinggrain boundarymisorientation
Type
Research Article
Information
Microscopy and Microanalysis , Volume 9 , Issue 3 , June 2003 , pp. 237 - 244
Copyright
2003 Microscopy Society of America

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