Principles of Materials Science and EngineeringLecture 09Prof. Daniel R. MummChemical Engineering and Materials ScienceHenry Samueli School of EngineeringUniversity of California, Irvine[email protected]University of California, IrvineE54, Winter ‘14
ENGR 54 – Principles of Materials Science and Engineering: Lecture 092 TodayImperfect CrystalsDefects in CrystalsReading assignment:Through Chapter 6
ENGR 54 – Principles of Materials Science and Engineering: Lecture 093 Imperfect CrystalsSo far, we have discussed ideal, perfect structures….±What types of defects can we consider? What role do these defects play inthe properties of materials?±What are the various descriptors±What are the energetics and thermodynamic driving forces for defect formation?±How do various defects interact, and effect material properties±What is the equilibrium defect concentration? How does this change withtemperature, pressure, etc.?Overview of crystal defects and point, line and area (planar) imperfections??