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Ledi MENABUE

Department of Chemical and Geological Sciences

Content class: Chemistry of the Solid State

Class: CHEMICAL SCIENCES (D.M. 270/04) (Offer 2017)
  • CFU: 6
  • SSD: CHIM/03

Objectives

Knowledge of solids classification and structure/property relationship, ability to describe the structural organization of solids and their properties. Knowledge mechanical, and thermal properties and their calculation.Knowledge of the difrent type of defects and their effect on structure and properties.

Prerequisites

Close packing theory. Physical and chemical properties of elements. Basic crystallochemistry

Course Syllabus

Office hours: Tuesday: 15.00 -17.00; Thursday: 15.00 – 17.00 State of matter. Inorganic and organic solids. Order and disorder: crystals, quasi-crystals, mesophases, amorphous solids. Defects in solids, defect classification. Non-stoichiometric defects. Point defects thermodynamic. Line and planar defects. Solid-solid phase transitions. Solid solution. Close packed solids. Liquid crystals, metal glasses, Alloys: order and disorder. Brass and structure. Shape memory alloy, superconductor, silicates, natural and synthetic polymers. Mechanical and Thermal properties. Classroom exercises on crystallographic plane and directions, point defects, shear stress, mechanical properties, linear thermal coefficient.

Reference texts

A.R.West Basic solid state chemistry, John Wiley & Sons, 2th. Ed. 2001. R.Tilley Understanding solids Wiley, 2004 On-line materials will be available from the teacher

Teaching methods

Lectures and numerical exercises involving the active participation of students.

Verification of learning

Mid-term written exam: numerical exercises normally on crystallographic plane and directions and point defects, a second written exam immediately after the end of the course on physical and mechanical properties of solids; the final oral exam is formed by three questions, two of them are proposed by the student, one on a general subject (e.g. defects, alloy, mechanical properties), and the second on a type of solids. The written exams contribute to the final rate up to 30%

Expected results

KNOWLEDGE AND UNDERSTANDING The main goal is the knowledge of the different orders degree of solid matter, the different ordered organization of inorganic and organic solids and the structure/properties relationship. Knowledge of different type of defects and the factors affecting them, mechanical and thermal properties of solids. APPLYING KNOWLEDGE AND UNDERSTANDING Students should acquire the skills to describe the crystal and molecular structure of inorganic and organic (synthetic and natural) solids, to list the properties of a solid on the basis of its structural organization (crystals, amorphous, disordered, defective), to calculate the concentration of point defects, the energy for dislocations movement and the main mechanical properties. MAKING JUDGEMENTS Students should acquire the ability to compare and discuss the different properties of solids on the basis of their and to list the properties to be selected for a specific use. Students should be able to compare data and references. COMMUNICATION SKILLS Students should possess communication skills in order to explain their point of view on solid structural features and properties. LEARNING SKILLS Students should acquire the skills for identifying the correct sources for improving their knowledge in the field of solids and to apply it to new materials