Structure and properties of silica glass densified in cold compression and hot compression
Silica glass has been shown in numerous studies to possess significant capacity for
permanent densification under pressure at different temperatures to form high density …
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 …
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
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 …
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
During the decompression of plastically deformed glasses at room temperature, some
aspects of irreversible densification may be preserved. This densification has been primarily …
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 …
non-metallic materials, where Ps can be confined. Accessible experimental measurements …
Probing medium-range order in oxide glasses at high pressure
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 …
structures, such as how atoms are coordinated and how the coordination polyhedron is …
Toward inertial sensing with a 23S positronium beam
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 …
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
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 …
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 …
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 …
much of their underlying structure and dynamical properties remain puzzling. We present a …