Course:                       MS 205A/ MAE 272 IMPERFECTIONS IN SOLIDS

Instructor:                  Dr. Marc A. Meyers

Day/Time/Location:   Tu – Th.          9:30 - 10:50   EBU2 105

Final Exam:                Tuesday, June 9         11:30 - 2:30 PM

Midterm:                    Tuesday, May 4,   2004



Class coverage

Electronic defects

Atomic defects

Line Defects: Dislocations and twins

Interfacial defects: grain boundaries, surfaces

Volumetric defects: precipitates, dispersions, voids



  1. J. Weertman and J. R. Weertman, Elementary Dislocation Theory, Mac Millan
  2. D. Hull and D. J. Bacon, Introduction to Dislocations, 4th Ed., Butterworth


Additional Sources:

D. R. Askeland and P. P. Thule, The Science and Engineering of Materials, 4th ed., Thomson

J.-I. Takamura, Point Defects, in “Physical Metallurgy,” ed. R. W. Cahn, North-Holland-Elsevier, 1970, pp.857-910.

 P. Haasen, Physical Metallurgy, Cambridge.

L. E. Murr, Interfacial Phenomena in Metals and Alloys, Addison-Wesley

A. P. Sutton and R. F. Balluffi, Interfaces in Crystalline Materials, Oxford Science publ.

W. D. Nix, “Mechanical Properties of Thin Films, “ Met. Trans. 20A(1989)2217-2245.

L. B. Freund and S. Suresh, Thin Film Materials, Cambridge, 2003.


Grading, Exams and Homework


Grading will be based on exams, homework, and a report.

The weights will be:

Midterm: 30%

Final: 40%

Homework: 30%


Homework Guidelines


  1.  Homework should be neatly written on standard engineering 8 1/2 x 11 paper.  Sloppy or late homework will be penalized or even rejected.


  1. Be sure to show your work on all homework problems; the answer alone is never responsive, and points will be deducted if important steps are missing from your development.  Make liberal use of carefully drawn and labeled diagrams in your homework.  Since significant partial work is usually given some credit on homework, it is a sound strategy to hand in what you can do on each homework problem.  One more thing:  It must be your own work!  Cases of copying will be treated as ACADEMIC DISHONESTY.  You can talk with other students, but you must then do the problem yourself.


  1. Assignments will be announced in class, typically on Tuesday, and will be due the following Tuesday.  Homework is due at the beginning of class on the due date.  Assignments handed in after the beginning of class will be treated as late and will not be graded.  PLEASE DO NOT ATTEMPT TO COMPLETE ASSIGNMENTS DURING THE LECTURE.  THESE WILL NOT BE GRADED.


  1. Each problem should begin on a NEW PAGE and should include the following:

a)      A brief statement of the problem including any necessary given information or

      assumptions you decide to make.

b)      Figures

c)      Mathematical analysis

d)      Your final answer with a BOX drawn around it.  This is essential!

            Do not carry around symbols for units as you walk through a problem.  When you give a

            final answer, then is the time and place to attach units.  Use the abbreviations in the text for Mega Pascal (MPa), density (g/cm³), etc.  Don't forget correct units.


  1. No homework will be accepted late (homework is due in class on due dates before class begins).  A late entrance into the class does not provide an excuse for handing homework in late.


  1. Be sure that your name is at the top of the first page of each part.  PRINT your name in block letters, LAST NAME FIRST.  Staple the pages together to ensure full credit.