1. 1 Welcome to AML120: Materials Science 3-0-2 J. Jain, R.K. Pandey, R. Prasad

2. J. Jain Assistant Professor Department of Applied Mechanics Office: III-232 D Tel. 011-2659 1246 Mob: 9582513867 jayantj@am.iitd.ac.in

3. 3 R. Prasad Professor Department of Applied Mechanics Office: MS207/C-10 Tel. 011-2659 1782 Mob: 981853 8085 rajesh@am.iitd.ac.in rajesh.prasad.iitd@gmail.com

4. AML120: Materials Science 3-0-2 Lectures:3 hours/wk Lab 2 hours/wk Self study3 hours/wk 8 hours/wk

5. J. Jain: 6 lectures R. K. Pandey: 6 lectures R. Prasad: 30 lectures AML120: Materials Science 3-0-2 Textbook: V. Raghavan, Materials Science and Engineering: A First Course 3 lectures per week x 14 weeks = 42 lectures

6. 6 1.Introduction [1] 2.Thermodynamics Review [2] 3.Crystallography [4] 4.Structure of solids [6] Minor I AML120: Materials Science 3-0-2

7. 7 5. Defects in crystalline solids [6] 6. Phase Diagrams [4] 7. Composite materials [1] 8a. Plastic deformation I [2] Minor Test II 8b. Plastic Deformation II [3] 9. Fracture and fatigue [3] 10. Phase transformation [5] 11. Corrosion [2] Major Test

8. 8 1.00-3.00 pmInstructor MonGroup 4, 9JJ/RP Tue Group 5,10 RKP WedGroup 1,6JJ/AA ThuGroup 2,7RKP/RP FriGroup 3,8JJ/AA All lab classes would be held in Materials Science Core Laboratory, Room MS207/C-6

9. 9 Minor I Minor II Major Quizzes + Lab Total 60 120 80 320 Grading

10. 10 Attendance Policy A max of 10 grace marks for good attendance Grace marks Attendance % 0 75 100 0 10

11. Why sometimes air simply leaks out of a cycle tube while at other times it comes out with a burst? By the end of this course you should be able to answer some interesting questions

12. How are atoms arranged inside a solid?

13. 13 How we can produce interesting combination of properties?

14. 14 Why did Titanic sink?

15. 15 Artificial rain? A giant "dragon" spewing out artificial rain over rural crop of Vidalia sweet onions

16. Concept of stability and metastability What do we mean by stable state? How we define metastable state? Some materials tend to remain in metastable State for years and years!! Why???

17. Fig. 2.1

18. metastable unstable stable Activation barrier Fig. 2.2

19. Otherwise Unstable Minimum Energy – STABLE EQUILIBRIUM Maximum Energy – UNSTABLE EQUILIBRIUM Global Minimum - Most STABLE Local Minimum - METASTABLE