ECI Digital Archives

Title

Plasticity of an atomically layered crystal: A combined nanomechanical and ab initio study on Mo2BC

Authors

Sandra Korte-Kerzel, RWTH Aachen University, GermanyFollow
Stefanie Sandlöbes, RWTH Aachen University, Germany
Tobias Klöffel, FAU Erlangen-Nürnberg
Bern Meyer, FAU Erlangen-Nürnberg

Conference Dates

October 1-6, 2017

Abstract

Plasticity in atomically layered crystals, such as X₂BC or MAX phases, is not yet fully understood. Particularly plasticity on non-basal planes is rarely considered. The reason for this lies both in the prevalence of basal deformation observed (MAX) or predicted (X₂BC) and the difficulties in performing single crystal experiments on anisotropic and brittle materials challenging to produce in bulk form. We therefore employed a combined approach using microcompression, TEM including conventional and LACBED dislocation analysis and ab initio calculations to elucidate the active deformation mechanisms in Mo₂BC. We show that appreciable ductility in Mo₂BC is indeed achieved due to the activation of previously unexpected non-basal slip.

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Recommended Citation

Sandra Korte-Kerzel, Stefanie Sandlöbes, Tobias Klöffel, and Bern Meyer, "Plasticity of an atomically layered crystal: A combined nanomechanical and ab initio study on Mo2BC" in "Nanomechanical Testing in Materials Research and Development VI", Karsten Durst, Technical University of Darmstadt, Germany Eds, ECI Symposium Series, (2017). https://dc.engconfintl.org/nanomechtest_vi/102