December 1 - 6, 2024
Boston, Massachusetts
Symposium Supporters
2024 MRS Fall Meeting & Exhibit
SF01.02.02

Structure and Atomic Motion in Metallic Glasses at High Pressure

When and Where

Dec 2, 2024
2:00pm - 2:30pm
Hynes, Level 3, Room 310

Presenter(s)

Co-Author(s)

Antoine Cornet1,Beatrice Ruta1,Alberto Ronca1,Jie Shen1

Université Grenoble Alpes1

Abstract

Antoine Cornet1,Beatrice Ruta1,Alberto Ronca1,Jie Shen1

Université Grenoble Alpes1
Despite metallic glasses are among the most studied metallic materials, still very little is known on the evolution of their unique structural, dynamical and elastic properties under hydrostatic compression, owing to the difficulty to perform in-situ high pressure experiments.
By combining fast scanning calorimetry with synchrotron high energy X-ray diffraction and X-ray Photon Correlation Spectroscopy measurements, we performed a detailed study of the relation between thermal properties, structure and collective atomic motion in metallic glasses under different in situ and ex-situ high pressure treatments [1-3]. Our results provide new insights on the effect of hydrostatic compression in non-ergodic materials and on the surprising rejuvenation and strain hardening reported in previous studies [4].
In this talk, I will present recent advances in this field and show how hot compressions can be used to irreversible modify the structure of metallic glasses and tune at wish the relaxation state of the material.
[1] A. Cornet et al. J. Synch. Rad. 2024
[2] A. Cornet et al. Acta Mat. 2023
[3] X. Zhang et al. Proc. Nat. Acad. Sc., 2023
[4] J. Pan et al. Nature 2020

Keywords

ceramic | high-entropy alloy | interatomic arrangements

Symposium Organizers

Isabella Gallino, TU Berlin
Jamie Kruzic, UNSW Sydney
Yanhui Liu, Yale University
Jan Schroers, Yale University

Symposium Support

Gold
Radical AI

Silver
Heraeus AMLOY Technologies GmbH

Bronze
AMAZEMET Sp. z o.o.

Session Chairs

Takeshi Egami
Mo Li
Shuai Wei

In this Session