journal article·2025-02Open access

Nanocalorimetry of Nanoscaled Ni/Al Multilayer Films: On the Methodology to Determine Reaction Kinetics for Highly Reactive Films

Sascha S. Riegler, Yesenia H. Sauni Camposano, Konrad Jaekel, Maximilian Frey, Christian Neemann, Sebastian Matthes, Emina Vardo, Maryam R. Chegeni, Heike Bartsch, Ralf Busch, Jens Müller, Peter Schaaf, Isabella Gallino

Advanced Engineering Materials· Volume 27· Issue 3

Abstract

Free‐standing Ni/Al multilayer films with a planar morphology, a bilayer thickness of 20 nm, and an average composition of Ni50Al50 (at%) deposited by direct current magnetron sputtering are investigated by nanocalorimetry and conventional calorimetry. Both the novel fast differential scanning calorimeter (FDSC) Flash DSC 2+ from Mettler–Toledo (MT) and conventional calorimeter MT DSC 3 are used to cover a range of heating rates from 0.1 to 104 K s−1. A quantitative kinetic study of the interdiffusion and phase reaction sequence is performed via a Kissinger analysis covering five orders of magnitude of heating rates. Using the calorimetric data, the derived apparent activation energies suggest monotonic reaction kinetics over the entire range of heating rates applied. To correct the thermal lag at the highest heating rates with the FDSC for nonadhered free‐standing films, a new methodology for its correction is used. Overall, this work extends the application of commercial FDSC to nonadhered films.
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Research context

OpenAlex topics: nanoparticles nucleation surface interactions · Ionic liquids properties and applications · Advanced Chemical Physics Studies

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

Affiliations

Institute for Metallic Materials Saarland University Campus C6.3 66123 Saarbrücken Germany

Chair Materials for Electrical Engineering and Electronics Institute of Materials Science and Engineering Institute of Micro and Nanotechnologies MacroNano TU Ilmenau Gustav‐Kirchhoff‐Str. 5 98693 Ilmenau Germany

Electronics Technology Group Institute of Materials Science and Engineering Institute of Micro and Nanotechnology MacroNano TU Ilmenau Gustav‐Kirchhoff‐Str. 1 98693 Ilmenau Germany

Department of Materials Science and Engineering Metallic Materials TU Berlin Ernst‐Reuter‐Platz 1 10587 Berlin Germany

Funding

Deutsche Forschungsgemeinschaft

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