Crystal orientation mapping via ion channeling: An alternative to EBSD

Cyril Langlois 1 Thierry Douillard 1 Hui Yuan 1 Nicholas Blanchard 2 Armel Descamps-Mandine 1 Bertrand Van de Moortèle 3 Christophe Rigotti 4, 5, 6 Thierry Epicier 1
5 DM2L - Data Mining and Machine Learning
LIRIS - Laboratoire d'InfoRmatique en Image et Systèmes d'information
6 BEAGLE - Artificial Evolution and Computational Biology
LIRIS - Laboratoire d'InfoRmatique en Image et Systèmes d'information, Inria Grenoble - Rhône-Alpes, LBBE - Laboratoire de Biométrie et Biologie Evolutive, CarMeN - Cardiovasculaire, métabolisme, diabétologie et nutrition
Abstract : A new method, which we name ion CHanneling ORientation Determination (iCHORD), is proposed to obtain orientation maps on polycrystals via ion channeling. The iChord method exploits the dependence between grain orientation and ion beam induced secondary electron image contrast. At each position of the region of interest, intensity profiles are obtained from a series of images acquired with different orientations with respect to the ion beam. The profiles are then compared to a database of theoretical profiles of known orientation. The Euler triplet associated to the most similar theoretical profile gives the orientation at that position. The proof-of-concept is obtained on a titanium nitride sample. The potentialities of iCHORD as an alternative to EBSD are then discussed.
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https://hal.archives-ouvertes.fr/hal-01226846
Contributeur : Christophe Rigotti <>
Soumis le : mardi 10 novembre 2015 - 11:44:45
Dernière modification le : mardi 24 avril 2018 - 12:10:02

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Cyril Langlois, Thierry Douillard, Hui Yuan, Nicholas Blanchard, Armel Descamps-Mandine, et al.. Crystal orientation mapping via ion channeling: An alternative to EBSD. Ultramicroscopy, Elsevier, 2015, 157, pp.65-72. 〈10.1016/j.ultramic.2015.05.023〉. 〈hal-01226846〉

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