Achraf Atila

Achraf Atila
Universität des Saarlandes | UKS · Department of Materials Science and Materials Engineering

About

14
Publications
6,285
Reads
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84
Citations
Introduction
My research interests are focused on the deformation behavior and failure of inorganic glasses as well as their thermodynamic and structural properties.
Additional affiliations
July 2021 - present
Max Planck Institute for Iron Research GmbH
Position
  • Researcher
April 2018 - April 2022
Friedrich-Alexander-University of Erlangen-Nürnberg
Position
  • Research Associate
April 2018 - present
Friedrich-Alexander-University of Erlangen-Nürnberg
Position
  • PhD Student
Education
April 2018 - December 2022
Friedrich-Alexander-University of Erlangen-Nürnberg
Field of study
  • Material Science and Engineering
October 2015 - July 2017
Université Hassan II de Casablanca
Field of study
  • Physics of materials and nano-materials
September 2012 - July 2015

Publications

Publications (14)
Article
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 control is considered one of the primary challenges in developing new bioactive glasses. Here, we use molecular dynamics simulations to investigate the effect of the dens...
Preprint
Full-text available
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 processing in mechanical fields and leads to unique materials properties. Unfortunately, due to the lack of local, atomic-scale analysis methods, the microscopic mechanisms lead...
Preprint
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 of such zonal dislocations are still not well understood. In this work, using atomistic simulations, two 30{\deg} synchro-Shockley dislocations with different Burgers ve...
Article
Full-text available
Oxide glasses have proven useful as bioactive materials, owing to their fast degradation kinetics and tunable properties. Hence, 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., tissue regeneration. Understanding the...
Preprint
Full-text available
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 control is considered one of the primary challenges in developing new bioactive glasses. Here, we use molecular dynamics simulations to investigate the effect of the dens...
Preprint
Oxide glasses have proven useful as bioactive materials, owing to their fast degradation kinetics and tunable properties. Hence, 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., tissue regeneration. Understanding the...
Article
Glasses have applications in regenerative medicine due to their bioactivity, enabling interactions with hard and soft tissues. Soda-lime phosphosilicate glasses, such as 45S5, represent a model system of bioactive glasses. Regardless of their importance as bioactive materials, the relationship between the structure, density, and cooling process has...
Article
We used molecular dynamics simulations to investigate the dependence of the atomic-scale structure on the temperature and pressure conditions of Al70Ni15Co15 metallic glass. The effect of pressure variations on the glass transition temperature was also studied, showing an increase with pressure. Moreover, radial distribution function, coordination...
Preprint
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 network. The effect of the modifier content on the structure and properties of the glass are to some extent, well known. However, the effect of the type of modifiers on the...
Article
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 the behavior of Tg. However, in aluminosilicate glasses, the effect of different modifiers on Tg is still unclear and show an anomalous behavior. Here, based on molecular...
Preprint
Full-text available
The glass transition temperature is the temperature, after which the supercooled liquid undergoes a dynamical arrest. Usually, the glass network modifiers (e.g., Na2O) affect the behavior of Tg. However, in aluminosilicate glasses, the effect of different modifiers on Tg is still unclear and show an anomalous behavior. Here, based on molecular dyna...
Article
We rely on molecular dynamics simulations to investigate and discuss the effect of alumina content on the thermodynamic, elastic and structural properties of calcium aluminosilicate glasses in the light of available experimental data. The alumina content varies from low to intermediate ranges by considering compositions of where x = 0-30 mol %. T...
Article
Full-text available
Ternary aluminosilicate glasses are of great interest in glass and earth sciences. The structural role of the non-network cations is not fully understood until now. Understanding the structural effect of the non-network cations is necessary for explaining their impact on the macroscopic properties of aluminosilicate glasses. In this work, we use mo...
Article
Understanding the role of TiO2 in BaO‐TiO2‐SiO2 (BTS) glasses is one of the keys to develop new glasses and glass‐ceramics for different technological applications. For the first time, molecular dynamics simulations were conducted to get new insights into the atomic structure of the BTS glasses and their elastic moduli. Various compositions are stu...

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Projects

Projects (3)
Project
Oxide glasses are excellent bioactive materials. Most bioactive glasses are found within the ternary soda-lime silicate. These systems are known to have a relatively slow interaction with the physiological fluid, making the dissolving process slower and keeping the glass in the body for longer times than the tissue's recovery period, which is undesirable. Moreover, most of these glasses have relatively low mechanical properties making their usage in different implantation zones difficult. Research in the field focused on the compositional design of bioactive glasses to tailor their properties. In this project, we are focused on investigating the effect of the thermodynamic history of the glasses on their physical properties (e.g., mechanical) and bioactivity using large scale classical and reactive atomistic simulations. The effect of alkali and alkaline earth elements is also investigated together with the glass surface reactivity.
Project
The purpose of this project is to study, predict, and explain the effect of different modifiers on the structure and properties of silicate and aluminosilicate glasses. To this end, we rely on molecular dynamics simulations to simulate the glass transition process, analyze the structure and evaluate the mechanical properties either at room temperature or at 0 K.