High-entropy ceramics: Review of principles, production and applications

S Akrami, P Edalati, M Fuji, K Edalati - Materials Science and Engineering …, 2021 - Elsevier
High-entropy ceramics with five or more cations have recently attracted significant attention
due to their superior properties for various structural and functional applications. Although …

Femtosecond x-ray diffraction reveals a liquid–liquid phase transition in phase-change materials

P Zalden, F Quirin, M Schumacher, J Siegel, S Wei… - Science, 2019 - science.org
In phase-change memory devices, a material is cycled between glassy and crystalline
states. The highly temperature-dependent kinetics of its crystallization process enables …

Emergence of anomalous dynamics in soft matter probed at the European XFEL

F Lehmkühler, F Dallari, A Jain… - Proceedings of the …, 2020 - National Acad Sciences
Dynamics and kinetics in soft matter physics, biology, and nanoscience frequently occur on
fast (sub) microsecond but not ultrafast timescales which are difficult to probe …

Vitrification decoupling from α-relaxation in a metallic glass

X Monnier, D Cangialosi, B Ruta, R Busch… - Science advances, 2020 - science.org
Understanding how glasses form, the so-called vitrification, remains a major challenge in
materials science. Here, we study vitrification kinetics, in terms of the limiting fictive …

Disentangling structural and kinetic components of the α-relaxation in supercooled metallic liquids

N Neuber, O Gross, M Frey, B Bochtler… - Communications …, 2022 - nature.com
The particle motion associated to the α-relaxation in supercooled liquids is still challenging
scientists due to its difficulty to be probed experimentally. By combining synchrotron …

Liquid-to-liquid transition around the glass-transition temperature in a glass-forming metallic liquid

J Shen, YH Sun, J Orava, HY Bai, WH Wang - Acta Materialia, 2022 - Elsevier
Liquid-to-liquid transition (LLT) refers to a first-order phase transition between two liquid
states. Here, the relationship between the liquid dynamics and LLT is studied by performing …

Thermodynamic and kinetic studies of the Cu–Zr–Al (–Sn) bulk metallic glass-forming system

HR Jiang, B Bochtler, SS Riegler, XS Wei… - Journal of Alloys and …, 2020 - Elsevier
The thermodynamic and kinetic properties of Cu 45.6 Zr 45.3 Al 9.1, Cu 47.5 Zr 45.1 Al 7.4,
and Cu 47.3 Zr 45.8 Al 6.4 Sn 0.5 bulk metallic glasses are investigated to help …

Viscosity of metallic glass-forming liquids based on Zr by fast-scanning calorimetry

R Al-Mukadam, IK Götz, M Stolpe, J Deubener - Acta Materialia, 2021 - Elsevier
Fast-scanning calorimetry was applied to retrieve the viscosity of supercooled liquids of the
Zr-based bulk metallic glasses (BMGs) Vitreloy 105 and AMZ4 for temperatures from …

Effect of sulfur on the glass-forming ability, phase transformation, and thermal stability of Cu-Zr-Al bulk metallic glass

HR Jiang, JY Hu, N Neuber, B Bochtler, B Adam… - Acta Materialia, 2021 - Elsevier
The effects of minor sulfur addition on the glass-forming ability (GFA), phase formation,
thermal stability, and mechanical properties of the Cu 47.5 Zr 45.1 Al 7.4 bulk metallic glass …

Wave-vector dependence of the dynamics in supercooled metallic liquids

B Ruta, S Hechler, N Neuber, D Orsi, L Cristofolini… - Physical review …, 2020 - APS
We present a detailed investigation of the wave-vector dependence of collective atomic
motion in Au 49 Cu 26.9 Si 16.3 Ag 5.5 Pd 2.3 and Pd 42.5 Cu 27 Ni 9.5 P 21 supercooled …