journal article·2025Open access

Formation of 3D Cr 2 C through solid state reaction-mediated Al extraction within Cr 2 AlC/Cu thin films

Clio Azina, Justinas Palisaitis, Dimitri Bogdanovski, Tim Bartsch, Rajib Sahu, Christina Scheu, Per O. Å. Persson, Per Eklund, Jochen M. Schneider

Nanoscale· Volume 17· Issue 9

Abstract

We report on the formation of the Cr2C compound using chemical etching-free methodology to extract Al from a Cr2AlC MAX phase thin film. Cr2AlC/Cu assemblies were deposited on sapphire substrates, using magnetron sputtering, and were subsequently annealed in vacuum. The Al from the MAX phase was shown to diffuse into Cu resulting in the formation of Al4Cu9 and causing the MAX phase to collapse into Cr2C grains. These carbide grains were characterized by transmission electron microscopy and the interatomic distances extracted were in good agreement with ab initio calculations predicting the equilibrium volume of the Cr2C phase.
Source: europepmc · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: MXene and MAX Phase Materials · Intermetallics and Advanced Alloy Properties · Advanced materials and composites

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Materials Chemistry, RWTH Aachen University, Kopernikusstr. 10, 52074 Aachen, Germany

Thin Film Physics Division, Department of Physics, Chemistry and Biology (IFM), Linköping University, SE-581 83 Linköping, Sweden

Max-Planck-Institute for Sustainable Materials, Max-Planck-Str. 1, 40237 Düsseldorf, Germany

Inorganic Chemistry, Department of Chemistry - Ångström Laboratory, Uppsala University, Box 538, SE-751 21 Uppsala, Sweden

Funding

Knut och Alice Wallenbergs Stiftelse · Vetenskapsrådet · International Interdisciplinary Laboratory for Advanced Functional Materials, Linköpings Universitet · H2020 Marie Skłodowska-Curie Actions · Stiftelsen för Strategisk Forskning

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