Interfacial Energy of Copper Clusters in Fe-Si-B-Nb-Cu alloys
Rajesh Jha, David R. Diercks, Nirupam Chakraborti, Aaron P. Stebner,, and Cristian V. Ciobanu
TL;DR
This study combines numerical simulations and atom-probe tomography to accurately determine the interfacial energy of copper nanocrystals in Fe-Si-B-Nb-Cu alloys, aiding understanding of nanocrystal formation.
Contribution
It introduces a novel integrated approach using APT and precipitation modeling to measure interfacial energy in amorphous alloy matrices.
Findings
Determined the interfacial energy value matching experimental data.
Validated the combined simulation and experimental approach.
Applicable methodology for other nanocrystal systems.
Abstract
Using a combination of numerical simulations and atom-probe tomography experiments, we determine the interfacial energy of Cu nanocrystals precipitated within the amorphous matrix of FINEMET (molar composition Fe72.89Si16.21B6.90Nb3Cu1). Specifically, we use the Langer-Schwartz model implemented in the software Thermocalc to carry out parametric simulations of growth and coarsening of Cu clusters for different interface energies. We have carried out atom-probe tomography (APT) experiments to determine the interface energy as the value for which the simulated particle size distribution best matches the experimental data. This combination of APT and precipitation modeling can be applied to other nanocrystals precipitated within amorphous matrices.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.