A method to identify dislocations in a known crystal structure by transmission electron microscopy - Archive ouverte HAL Access content directly
Journal Articles Journal of Applied Crystallography Year : 2011

A method to identify dislocations in a known crystal structure by transmission electron microscopy

(1) , (2) , (1) , (1) , (1) , (2) , (2)
1
2

Abstract

This paper proposes a method to identify the type and the Burgers vector of dislocations visualized via transmission electron microscopy (TEM). The first step is to determine experimentally the orientation, with respect to the sample holder, of a grain of known crystal structure whose dislocation slip systems have been previously reported. With this determined orientation of the grain, the method calculates the orientation of the projections of the possible dislocation line vectors in the transmission electron microscope screen coordinate system and then compares them with the observed dislocations to identify their type and the Burgers vector. The coordinate transformations underlying the method are outlined, and its validity is demonstrated using TEM measurements on a titanium sample. The method is expected to simplify the related TEM determination work.
Fichier principal
Vignette du fichier
art_24.pdf (416.51 Ko) Télécharger le fichier
Origin : Publisher files allowed on an open archive

Dates and versions

hal-03864500 , version 1 (21-11-2022)

Identifiers

Cite

Yudong Zhang, Shiying Wang, Claude Esling, Jean-Sébastien Lecomte, Christophe Schuman, et al.. A method to identify dislocations in a known crystal structure by transmission electron microscopy. Journal of Applied Crystallography, 2011, 44, pp.1164 - 1168. ⟨10.1107/s0021889811041173⟩. ⟨hal-03864500⟩

Collections

CNRS UNIV-LORRAINE
0 View
0 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More