1. 1 Welcome to AML120: Materials Science 3-0-2 R. Prasad

2. 2 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

3. 3 AML120: Materials Science 3-0-2 Lectures:3 hours/wk Lab 2 hours/wk Self study3 hours/wk 8 hours/wk Acharyat padamadatte padam shishyaswamedaya padam sahabrahmacharibhyopadam kalakramenacha A quarter given by the teacher, a quarter comes from pupil’s own effort, a quarter from peers, and quarter as the time unfolds

4. 4 AML120: Materials Science 3-0-2 3 lectures per week x 14 weeks = 42 lectures 1.Introduction [1] 2.Thermodynamics Review [2] 3.Crystallography [4] 4.Structure of solids [6] Minor I Textbook: V. Raghavan, Materials Science and Engineering: A First Course

5. 5 AML120: Materials Science 3-0-2 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

6. 6 1.00-3.00 pm3.15-5.15 pm MonGroup 4, 14Group 9 Tue Group 5,15 Group 10 WedGroup 1,11Group 6 ThuGroup 2,12Group 7 FriGroup 3,13Group 8 All lab classes would be held in Materials Science Core Laboratory, Room MS207/C-6

7. 7 Minor I Minor II Major Quizzes + Lab Total 60 120 80 320 Grading

8. 8 Attendance Policy A max of 10 grace marks for good attendance Grace marks Attendance % 0 75 100 0 10

9. Q1: Feynman’s Question: If in some cataclysm, all of scientific knowledge were to be destroyed, and only one sentence passed on to the next generation of creatures, what statement would contain the most information in the fewest words? The Feynman Lectures on Physics, Vol. 1, Chapter 1, Section 1.2 9

10. Feynman’s answer: Matter is made of atoms “In that one sentence, you will see, there is an enormous amount of information about the world, if just a little imagination and thinking is applied.” 10

11. Epitaphs of some famous scientists NATURE and Nature’s Laws lay hid in Night, God said, “Let Newton be!” and all was light. Alexander Pope Newton’s Epitaph 11

12. Q2: Who has a single mathematical equation as his epitaph? 12 Thermodynamics: Chap 2

13. Q3: How are atoms arranged inside a solid? 13 Crystallography and structure of solids, Chaps 3 & 5

14. 14 Q4: Which is the only father-son team to win a Nobel prize? For what? X-ray diffraction, Ch 3

15. Q5: What is the maximum number of equal sized spheres that can be arranged around a given sphere of same size? 15 The Kissing number Problem Structure of solids, Ch 5

16. Q6: Why sometimes air simply leaks out of a cycle tube while at other times it comes out with a burst? 16 Chap 12; Fracture

17. Q7: Why did Titanic sink? 17 Chap 12; Fracture

18. Q8: Artificial rain? 18

19. 19 — Lord Kelvin, President of the Royal Society, 1895. Q9: Who said (in 1895) “Heavier than air flying machines are impossible”

20. 20 As time permitted I started Lec 2, Ch2 on thermodynamics and covered the first 12 slides upto, S=k ln W.