Switching between Crystallization from the Glassy and the Undercooled Liquid Phase in Phase Change Material Ge2Sb2Te5

J Pries, S Wei, M Wuttig, P Lucas - Advanced materials, 2019 - Wiley Online Library
Controlling crystallization kinetics is key to overcome the temperature–time dilemma in
phase change materials employed for data storage. While the amorphous phase must be …

Stress Relaxation and Refractive Index Change of As2S3 in Compression Molding

J Zhou, J Yu, LJ Lee, L Shen… - International Journal of …, 2017 - Wiley Online Library
As2S3 is one of the chalcogenide glasses that have attracted increasing interests for
compression molding applications. This article aimed to evaluate the stress relaxation …

Investigating relaxation of glassy materials based on natural vibration of beam: A comparative study of borosilicate and chalcogenide glasses

J Wang, H Ruan, X Wang, J Wan - Journal of Non-Crystalline Solids, 2018 - Elsevier
The present work investigates the validity of using the frequency and decay rate of free-free
beam vibration, which are measured by the impulse excitation technique (IET), to …

Viscous crack healing in soda–lime–magnesium–silicate–ZrO2 glass matrix composites

C Blaeß, R Müller - Journal of the American Ceramic Society, 2024 - Wiley Online Library
The present study investigates the influence of the crystal volume content on viscous crack
healing in glass ceramic glass sealants. To ensure constant microstructure during healing …

Photoinduced fluidity in chalcogenide glasses at low and high intensities: A model accounting for photon efficiency

Y Gueguen, JC Sangleboeuf, V Keryvin, E Lépine… - Physical Review B …, 2010 - APS
Detailed measurements of photoinduced fluidity in Ge-Se glasses were performed using a
novel shear relaxation test in torsion mode. It is shown that photofluidity is significant even at …

Correlation between thermal and mechanical relaxation in chalcogenide glass fibers

P Lucas, EA King, Y Gueguen… - Journal of the …, 2009 - Wiley Online Library
Enthalpy relaxation processes in chalcogenide fibers at room temperature are investigated
by differential scanning calorimetry and compared with bending‐stress relaxation …

Description of the unusual non-Arrhenius viscosity pattern of metallic glass-forming liquids

M Ikeda, M Aniya - Journal of Alloys and Compounds, 2019 - Elsevier
Metallic glass-forming liquids (MGFLs) exhibit a quite unusual pattern in the temperature
dependence of the viscosity when plotted in a wide range of temperature. Among the fragile …

Optically trapped delayed elasticity in germanium selenide glass fibers

Y Gueguen, A Dergal, K Rahmoun… - … Journal of Applied …, 2019 - Wiley Online Library
Chalcogenide glasses undergo viscosity decrease under light irradiation (“photofluidity”).
This effect has been known and investigated for many years now. Nevertheless, what is less …

Crystals at high deformation rates displaying glassy behavior

A Rida, M Micoulaut, E Rouhaud… - physica status solidi …, 2019 - Wiley Online Library
When investigated as a function of deformation rate and time, model nano‐crystals exhibit a
clear threshold in mechanical and relaxation behavior, this observation being valid in both …

Photoinduced aging and viscosity evolution in Se-rich Ge-Se glasses

Y Gueguen, EA King, V Keryvin… - Journal of Applied …, 2013 - pubs.aip.org
We propose here to investigate the non-equilibrium viscosity of Ge-Se glasses under and
after light irradiation. Ge 10 Se 90 and Ge 20 Se 80 fibers have been aged in the dark and …