http://dspace.univ-relizane.dz/home/handle/123456789/163 2026-06-21T05:40:30Z http://dspace.univ-relizane.dz/home/handle/123456789/955 Title: Handout Properties of crystal defects Courses and Exercises Authors: Amina, ARRAR Abstract: This course handout entitled “Properties of Crystalline Defects” is intended for third-year Materials Physics students within the LMD educational system. It introduces the main types of crystalline defects and explains their influence on the physical and mechanical properties of materials. The manuscript begins with a review of crystal structures to provide the fundamental background required for understanding imperfections in solids. The course then discusses point defects, linear defects (dislocations), two-dimensional defects, and three-dimensional defects, highlighting their origin, characteristics, and effects on material behavior. Special attention is given to the influence of crystalline defects on electrical conductivity and material hardness. This educational material has been designed to help students better understand and assimilate the fundamental concepts of crystalline defect physics and their applications in materials science and engineering. 2025-10-20T00:00:00Z http://dspace.univ-relizane.dz/home/handle/123456789/948 Title: Matériaux foctionnels Authors: Talbi, Khedija Abstract: This work is designed for MASTER students, option: materials physics. Physics department. . The content of this course corresponds to the official program of Functional materials taught in the second year master. This course of Functional materials is constituted of about four chapters, its objective introduces students to understand Optical reflection is a physical phenomenon whereby a light wave thus to understand Properties of Functional Materials :  the first chapter : Introduction  The second chapter : Dielectric materials  The third chapter : Electrical conductivity of solids  The fourth chapter : Magnetic and optical properties of solids 2025-01-01T00:00:00Z http://dspace.univ-relizane.dz/home/handle/123456789/947 Title: Cours Cristallographie Authors: Talbi, Khedija Abstract: La cristallographie est la science qui étudie les matériaux cristallins : leurs structures atomiques, les relations entre structures et propriétés et la classification des structures cristallines. La cristallographie couvre un ensemble de techniques très puissantes pour explorer la composition et la structure de la matière à l'échelle des atomes et des molécules. Elle trouve aujourd'hui des applications dans presque tous les domaines de l'activité scientifique ou technique : biologie, chimie, sciences de la terre, minéralogie, archéologie, métallurgie, industrie pharmaceutique, industrie agroalimentaire, industrie chimie, médecine, matériaux biologiques et biotechnologie, stockage de substances, laser… Elle est à la base de l’élaboration de tous les nouveaux matériaux : cristaux liquides, matériaux composites, composants électroniques, cellules photovoltaïques, diodes électroluminescentes, téléphones portables, ordinateurs, nanotechnologie, gemmes synthétiques…, Elle utilise la diffraction des rayons X, par les cristaux, 2019-01-01T00:00:00Z http://dspace.univ-relizane.dz/home/handle/123456789/946 Title: THERMODYNAMICS LAB Authors: Fouddad, Fatma Zohra Abstract: This laboratory manual is designed for second-year undergraduate students in physics and focuses on three core areas of thermodynamics and material science: ideal gas behavior, thermal and electrical conductivity of metals, and the thermal expansion of solids. Each chapter is carefully structured to include theoretical background, clear experimental procedures, data collection methods, and analytical guidance 2025-01-01T00:00:00Z