A5026621441- Glass properties and applications
- Material Dynamics and Properties
- Nuclear materials and radiation effects
- High-pressure geophysics and materials
- Luminescence Properties of Advanced Materials
- Graphene research and applications
- Pigment Synthesis and Properties
- Quantum optics and atomic interactions
- Photonic Crystals and Applications
- Radiation Detection and Scintillator Technologies
- Advanced materials and composites
- Phase-change materials and chalcogenides
- 2D Materials and Applications
- Fusion materials and technologies
- Nuclear Materials and Properties
- Gas Sensing Nanomaterials and Sensors
- Building materials and conservation
- Photorefractive and Nonlinear Optics
Bangor University
2023-2025
University of Hassan II Casablanca
2019-2021
Ternary aluminosilicate glasses are of great interest in glass and earth sciences. The structural role the non-network cations is not fully understood until now. Understanding effect necessary for explaining their impact on macroscopic properties glasses. In this work, we use molecular dynamics to investigate physical a series charge balanced Elastic transition temperature were calculated. Our results accordance with experimental data found literature. We that elastic moduli increase...
Abstract Vitreous silica (v‐) has always been considered a reference case to which theories on disordered solid‐state materials are tested. One of the many features these is presence so‐called boson peak (BP), an emerging feature from atomic vibration in THz region neutron and light inelastic scattering increases. This work investigates effect densification BP v‐ using various approaches. Two methods cold compression (densification at room temperature) three hot (compression high...
Abstract Understanding the role of TiO 2 in BaO‐TiO ‐SiO (BTS) glasses is one keys to develop new and glass‐ceramics for different technological applications. For first time, molecular dynamics simulations were conducted get insights into atomic structure BTS their elastic moduli. Various compositions are studied where SiO have been replaced by . The calculated mechanical properties our models observed depend linearly on content. However, structure‐induced changes far from such dependence....
Nuclear Pressurised Water Reactors (PWRs) use zirconium alloys as a fuel cladding, preventing the cooling water, at elevated pH using lithium hydroxide, from interacting with fuel. Boron, boric acid, is added to coolant reactivity shim. Future reactor designs are considering removing soluble boron control aid plant simplification. The presence of in absence has, however, been found accelerate corrosion zirconium-based under certain conditions and mechanisms by which this occurs...
Brillouin light scattering (BLS) spectroscopy and molecular dynamic (MD) simulations allowed the identification of a relationship between elastic properties structure K-containing glasses formula (K2O)x-(SiO2)1–x, having different K2O concentrations. Excellent agreement was observed experimental data simulations. The peculiar for these potassium silicate have been extensively discussed in terms structural energetic features materials. Elastic were shown to be strongly dependent on asymmetry...
In the low-frequency regime, ≈1 THz, glasses show an anomalous excess in their vibrational density of states called boson peak (BP). The origin BP has been a subject debate since its first discovery few decades ago. Although focus numerous studies, no conclusive answers have found about origins, which remained elusive to date. Here, we present results based on molecular dynamics several binary and ternary silicate with different network intermediates modifier oxides. are reported for all...
Radiation sensors are an important enabling technology in several fields, such as medicine, scientific research, energy, defence, meteorology, and homeland security.