Skip to Main content Skip to Navigation
Journal articles

Frank partial dislocation in Ti2AlC-MAX phase induced by matrix-Cu diffusion

Abstract : The control of complex nanostructures is one of the most promising strategy for designing tailored property materials. Ti2AlC, as nanolayered ternary materials combining both ceramics and metals properties, could efficiently reinforce metal matrix composite by its decomposition into nano-Ti2C particles. However, the comprehensive description of the diffusion mechanisms of Cu element into Ti2AlC during its decomposition has not yet been revealed. Herein, we report detailed characterizations of Cu and Ti2AlC interlayers by means of high-resolution electron microscopy and atomic-scale simulations. In particular, we report the formation of Ti2AlxCuyC solid solutions. Furthermore, we demonstrate the formation of Ti2C platelets and evidenced Frank partial dislocations that are not expected to be found in such material. Impacts of such defects are discussed in the framework of mechanical behavior.
Document type :
Journal articles
Complete list of metadata

Cited literature [31 references]  Display  Hide  Download
Contributor : Julien Guénolé Connect in order to contact the contributor
Submitted on : Wednesday, September 23, 2020 - 12:21:22 PM
Last modification on : Friday, August 5, 2022 - 2:54:00 PM
Long-term archiving on: : Thursday, December 3, 2020 - 8:33:02 AM



Wenbo Yu, Julien Guénolé, Jaafar Ghanbaja, Maxime Vallet, Antoine Guitton. Frank partial dislocation in Ti2AlC-MAX phase induced by matrix-Cu diffusion. Scripta Materialia, Elsevier, 2021, 191, pp.34-39. ⟨10.1016/j.scriptamat.2020.09.007⟩. ⟨hal-02940841⟩



Record views


Files downloads