Magnetic compression and a kinematic signature of surface melting in current-driven metal loads

Physical review. E 2026

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Authors: Aidan W. Klemmer, S.E. Kreher, Trevor M. Hutchinson, E.P. Yu, T. J. Awe, Christopher L. Rousculp, Daniel H. Dolan, Brian Hutsel, K. C. Yates, K. J. Swanson, J. J. Iratcabal, Ashish Dahal
+1 more Bruno S. Bauer
DOI: 10.1103/qxq4-k5xp
Cited by: 1
References: 59

Abstract

In current-driven metal loads, a nonlinear magnetic-diffusion wave carries current and Joule heating inward from the electrical skin-depth layer, coupling the electromagnetic drive to material compression, melting, and expansion. Photon Doppler velocimetry of electrically thick aluminum measures premelt radial magnetic compression of 34.8±2.1 nm and an acceleration transition during surface melting. Interpreted with one-dimensional magnetohydrodynamic calculations, the measured velocity history gives a model-assisted solid-liquid transition duration of 4.5±0.7ns. The result is a validation-relevant surface-motion constraint for integrated current-driven material models, complementary to direct pressure-density-temperature measurements of aluminum.

Fields of Study & Subjects

Magnetic Properties and Applications Magnetic Properties of Alloys Metallic Glasses and Amorphous Alloys

Publication details

Journal / source
Physical review. E
Publisher
American Physical Society (APS)
Volume
114
Issue
2
Pages
L023202–L023202
Publication date
8 July 2026
Language
EN