Dr. Rifa Jarallah El-Khozondar

Dr. Rifa Jarallah El-Khozondar

PQSB 3rd Call Participant
Al-Aqsa University

Department: Physics department

Faculty: Applied science faculty

Specialization: Computational material science

FRQ Research Area: Natural Sciences and Technology 

Host university: Institute National de la Recherche Scientifique (INRS)

Host Department: Energy, Materials and Telecommunications

Canadian Partner: Prof. Dr. Federico Rosei, 

Research Domain: Material Science

Research Project Title: Monte Carlo Simulation of Topological Evolution in Two-Phase Polycrystalline Materials

Research Project Purpose: The main purpose of this study is to understand microstructural evolution of polycrystalline materials using Monte Carlo Potts model.  Monte Carlo Potts model is very successful in describing grain growth in polycrystals which is characterized by an array of cells having the same spin or crystal lattice orientation.  These cells are separated by boundaries, which evolve in such a way as to minimize total interfacial energy. In this project, we will investigate the topological evolution in two-phase polycrystalline materials, established on microstructural evolution produced from computer simulations based on Monte Carlo Potts model. The focus is on the correlations between the number of grain sides and the reduced grain size of the bounded grain.  The significance of the project is due to the fact that the multiphase polycrystalline materials such as ceramics and metallic alloys have important engineering and practical applications. Furthermore, studying topological evolution in polycrystalline materials is of great interest since it helps to control the properties of these materials and enhance their performance in industrial applications.

Expected Results: A numerical model will be developed to simulate topological evolution in two-phase systems to analyze the correlation between the average number of faces of a given grain and its size. In addition, the self-similar stationary function of the grain topology distributions in two- phase systems during Ostwald ripening will be investigated. Moreover, the topological size relationship function will be derived to verify the simulation results.