Work

Experimental shock Hugoniot and melt boundary temperatures of aluminum

Year: 2026

Type: article

Abstract: Aluminum is a ubiquitous component in dynamic compression, pulsed power, and other high energy density physics studies. Its high-pressure behavior and phase diagram are extensively studied standards in shockwave physics. While theoretical calculations and multiphase equations of state have been benchmarked to velocity measurements of loading and unloading waves, pressure and density under shock, and other mechanical data, experimental temperature data under these conditions have not been reported. We conducted a series of experiments shocking and releasing aluminum 6061 and 1100 samples into lithium fluoride windows. We measured temperature at the sample–window interface under steady compression and subsequent isentropic release. These results allow us to constrain the temperature of the solid Hugoniot and the boundary between the liquid and face-centered cubic solid phases.

Source: Journal of Applied Physics

DOI: 10.1063/5.0312749

Authors: T. M. Hartsfield, K. M. Amodeo, B. M. La Lone, G. D. Stevens, D. H. Dolan

Institutions: Sandia National Laboratories, Nevada National Security Site, Washington State University

Language: English

Topic: High-Velocity Impact and Material Behavior

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,500

Funders: National Nuclear Security Administration, Sandia National Laboratories