Materials Science 6200 - Imperfections in Solids
| _______________________________________________________________ |
Lecture |
For the .pdf version of this syllabus click here.
Spring 2009
INSTRUCTOR
Dr. Jincheng Du
Office: Discovery Park E-124
Office Phone: 940-369-8184
Email: du[AT]unt.edu
CLASS TIME & LOCATION
See the current class schedule for class time and location
COURSE DESCRIPTION
Defects or imperfections play a critical role in chemical and physical behavior of solid materials. Manipulating, suppressing or exploiting defects are important part of modern technologies. This course introduces different types of defects and defect processes in materials. Starting with an overview of perfect crystal structures, it will cover concepts in point defects: Krög-Vink notation, defect association, defect reaction and Brower’s diagram. Defects in both stoichiometric and non-stoichiometric compounds and electronic defect will be discussed. Relevant electrical conductivity (ionic and electronic), optical properties, radiation effects will be given with examples of important materials. Extended defects such as dislocations, grain boundaries and surfaces and observation of defects will be also introduced.
TEXT (Major Reference Books)
Defects in solids (Richard J. Tilley, Wiley)
Defect and defect processes in nonmetallic solids (W. Hayes and A. M. Stoneham, Dover)
The defect chemistry of metal oxides (D. M. Smyth, Oxford University Press)
GRADING
Midterm...……......……..... 40%
Final................................. 40%
Project and Term Paper... 20%
| ___ |
Class Topics |
_______________________________________________________________ |
Introduction (types of defects, perfect crystal structure)
Point defects (types of point defects, Krög-Vink notation, equilibrium defect concentration)
Defects in stoichiometric compounds (charge compensation, defect association and reaction)
Defect and diffusion
Ionic conducting materials
Computer simulation of point defects
Non-stoichiometry (Brower’s diagram)
Electronic properties of point defects
Defect and optical properties
Extended defects (dislocation, grain boundary)
Extended defects (surface and surface properties)
Observation of defects
|
