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Meeting 2026 TMS Annual Meeting & Exhibition
Symposium Advances in Multi-Principal Element Alloys V: Mechanical Behavior
Presentation Title Spectroscopic Characterization and Thermodynamic Stability of Femtosecond Laser-Ablated CuCoMn1.75NiFe0.25 Nanoparticles
Author(s) Anming Hu, D. Fieser, K. Li, S. Hugh, U. Dewanjee, B. Steingrimsson, Peter K. Liaw, J. Zou
On-Site Speaker (Planned) Anming Hu
Abstract Scope This paper presents a comprehensive characterization of CuCoMn1.75NiFe0.25 high-entropy alloy (HEA) nanoparticles synthesized through femtosecond laser ablation in ethanol and liquid nitrogen (LN2). Utilizing Transmission Electron Microscopy (TEM), Energy-Dispersive X-ray Spectroscopy (EDS), and X-ray Photoelectron Spectroscopy (XPS). The study explores particle sizes, defect structures, chemical distributions, and surface compositions. Thermodynamic calculations displayed the stability of HEA nanoparticles. Key findings include the identification of structural defects near particle edges, uniformity in chemical distributions, and surface-oxidation phenomena. XPS data further provide insights into the surface composition of particles ablated in different media.
Proceedings Inclusion? Planned:

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