33 citations · 192 across the 16 of their papers we have counts for
14 papers · 1 filter
Microstructure-specific mechanisms define multistage relaxation dynamics in a metallic model-glass
Achraf Atila, Zengquan Wang, Birte Riechers +1
Deciphering complex relaxation pathways in disordered solids is a central challenge across polymeric, oxide, and metallic glasses, which traditionally relies on the interpretation…
Brittleness of metallic glasses dictated by their state at the fragile-to-strong transition temperature
Achraf Atila, Sergey V. Sukhomlinov, Marc J. Honecker +1
The effect of cooling on the brittleness of glasses in general, and bulk metallic glasses (BMGs) in particular, is usually studied with continuously varying cooling rates; slower c…
Predicting Grain Boundary Segregation in Magnesium Alloys: An Atomistically Informed Machine Learning Approach
Zhuocheng Xie, Achraf Atila, Julien Guénolé +3
Grain boundary (GB) segregation in magnesium (Mg) substantially influences its mechanical properties and performance. Atomic-scale modelling, typically using ab-initio or semi-empi…
The origin of phase separation in binary aluminosilicate glasses
Houssam Kharouji, Abdellatif Hasnaoui, Achraf Atila
The quest for hard and tough transparent oxide glasses is at the core of glass science and technology. Aluminosilicate glasses exhibiting nanoscale phase separation emerge as promi…
Pressure-driven homogenization of lithium disilicate glasses
Yasser Bakhouch, Silvio Buchner, Rafael Abel Silveira +4
Lithium disilicate glasses and glass-ceramics are good potential candidates for biomedical applications and solid-state batteries, and serve as models of nucleation and crystal gro…
Solute Co-Segregation Mechanisms at Low-Angle Grain Boundaries in Magnesium: A Combined Atomic-Scale Experimental and Modeling Study
Risheng Pei, Joé Petrazoller, Achraf Atila +10
Solute segregation at low-angle grain boundaries (LAGBs) critically affects the microstructure and mechanical properties of magnesium (Mg) alloys. In modern alloys containing multi…
Exploring Solute Behavior and Texture Selection in Magnesium Alloys at the Atomistic Level
F. Mouhib, Z. Xie, A. Atila +3
This study advances our understanding of how chemical binding and solute distribution impact grain boundary segregation behavior and subsequent annealing texture modification in le…
Thermally activated nature of synchro-Shockley dislocations in Laves phases
Zhuocheng Xie, Dimitri Chauraud, Achraf Atila +3
Synchro-Shockley dislocations, as zonal dislocation, are the major carrier of plasticity in Laves phases at high temperatures. The motion of synchro-Shockley dislocations is compos…
The Origin of Deformation Induced Topological Anisotropy in Silica Glass
Sudheer Ganisetti, Achraf Atila, Julien Guénolé +4
Oxide glasses with a network structure are omnipresent in daily life. Often, they are regarded as isotropic materials; however, structural anisotropy can be induced through process…
Unveiling the mechanisms of motion of synchro-Shockley dislocations in Laves phases
Zhuocheng Xie, Dimitri Chauraud, Achraf Atila +3
In Laves phases, synchroshear is the dominant basal slip mechanism. It is accomplished by the glide of synchro-Shockley dislocations. However, the atomic-scale mechanisms of motion…
Density-Diffusion Relationship in Soda-Lime Phosphosilicate
Youssef Ouldhnini, Achraf Atila, Said Ouaskit +1
Bioactive glasses release ions such as sodium when implanted in the human body. However, an excess of the released ions can cause problems related to cytotoxicity. The ion release…
Atomistic insights into the mixed-alkali effect in phosphosilicate glasses
Achraf Atila, Youssef Ouldhnini, Said Ouaskit +1
In recent years, tailoring the properties of bioactive glasses through compositional design have become the subject of widespread interest for their use in medical application, e.g…
Atomic Structure and Modifiers Clustering in Silicate glasses: Effect of Modifier Cations
Achraf Atila
Oxide glasses are made of a network of glass former polyhedra, and modifiers which have a role in neutralizing the charge of the glass former polyhedra or depolymerize the glass ne…
Ionic Self-Diffusion and the Glass Transition Anomaly in Aluminosilicates
Achraf Atila, Said Ouaskit, Abdellatif Hasnaoui
The glass transition temperature (Tg) is the temperature, after which the supercooled liquid undergoes a dynamical arrest. Usually, the glass network modifiers (e.g., Na2O) affect…