Structure and properties of silica glass densified in cold compression and hot compression

M Guerette, MR Ackerson, J Thomas, F Yuan… - Scientific reports, 2015 - nature.com
Silica glass has been shown in numerous studies to possess significant capacity for
permanent densification under pressure at different temperatures to form high density …

Probing densified silica glass structure by molecular oxygen and E'center formation under electron irradiation

N Ollier, I Reghioua, O Cavani, M Mobasher… - Scientific Reports, 2023 - nature.com
This study aims to learn more about the structure of densified silica with focus on the
metamict-like silica phase (density= 2.26 g/cm3) by examining the formation of E'point …

Atomic and vibrational origins of mechanical toughness in bioactive cement during setting

KV Tian, B Yang, Y Yue, DT Bowron, J Mayers… - Nature …, 2015 - nature.com
Bioactive glass ionomer cements (GICs) have been in widespread use for∼ 40 years in
dentistry and medicine. However, these composites fall short of the toughness needed for …

Degree of permanent densification in oxide glasses upon extreme compression up to 24 GPa at room temperature

SK Lee, KY Mun, YH Kim, J Lhee… - The Journal of …, 2020 - ACS Publications
During the decompression of plastically deformed glasses at room temperature, some
aspects of irreversible densification may be preserved. This densification has been primarily …

Modelling Annihilation Properties of Positronium Confined in Nanoporous Materials: A Review

F Castelli, G Consolati - International Journal of Molecular Sciences, 2024 - mdpi.com
Positronium (Ps) is a valuable probe to investigate nanometric or sub-nanometric cavities in
non-metallic materials, where Ps can be confined. Accessible experimental measurements …

Probing medium-range order in oxide glasses at high pressure

SK Lee, AC Lee, JJ Kweon - The Journal of Physical Chemistry …, 2021 - ACS Publications
Densification in glassy networks has traditionally been described in terms of short-range
structures, such as how atoms are coordinated and how the coordination polyhedron is …

Toward inertial sensing with a 23S positronium beam

S Mariazzi, R Caravita, M Doser, G Nebbia… - The European Physical …, 2020 - Springer
In this work, we discuss the possibility of inertial sensing with positronium in the 2 3 S
metastable state for the measurement of optical dipole, relativistic and gravitational forces on …

Impact of Glass Free Volume on Femtosecond Laser-Written Nanograting Formation in Silica Glass

N Shchedrina, M Cavillon, J Ari, N Ollier, M Lancry - Materials, 2024 - mdpi.com
In this study, we investigate the effects of densification through high pressure and
temperature (up to 5 GPa, 1000° C) in the making of nanogratings in pure silica glass …

Low temperature heat capacity of permanently densified SiO2 glasses

G Carini Jr, G Carini, D Cosio, G D'Angelo… - Philosophical …, 2016 - Taylor & Francis
A study of low temperature specific heat capacity (1–30 K) has been performed on samples
of vitreous SiO2, which have been compacted under pressures up to 8 GPa to explore …

Origin of the first sharp diffraction peak in glasses

C Crupi, G Carini, M González, G D'Angelo - Physical Review B, 2015 - APS
Although glasses have been largely used for a wide variety of technological applications,
much of their underlying structure and dynamical properties remain puzzling. We present a …