Introduction to material science covers relationship to areas of science scaffolding learned and real life science - relationship to classroom science & new materials researched now

1. MATERIAL SCIENCE !!!
ENRICHMENT WORKSHOP FOR GIFTED CHILDREN
NO LIMITS TO LEARNING!
BELIEVE & YOU CAN ACHIEVE!
Dr Lakshmi Sharma
www.drlakshmisharma.com

2. What is Science?

3. Science is ……….
Biology
Physics
Chemistry

4. What is Material Science?

5. Material Science
Material Science
Investigation of the relationship among processing,
structure, properties and performance of materials.

6. History of Material Science
Stone Age
People began to make tools from stone
Natural materials: stone, wood, clay, skins, etc.
Bronze Age
Bronze is an alloy (a metal made up of more than on element),
copper + < 25% tin other elements.
Iron Age
Use of iron and steel, a stronger and cheaper
material

7. The Origin of Materials

9. Game 1
On the table are some items
How would you classify them, what similar properties do
they have ????
You have 5 minutes !!!!

10. Classification of Materials
Metals
Ceramics: inorganic nonmetallic solid – clay, bricks, pipes
Polymers
Semiconductors:material with electrical conductivity Semiconductor
materials are the foundation of modern electronics, including radio,
computers, telephones, and many other devices.

11. Polymers
The most important group of materials
Long chain carbon backbone
Plastics are a type of polymer
Polymers occur naturally and can be synthesised (made)

12. Polymers
Monomer + reactant Polymer
(usually toxic - carcinogen) (usually ok)

14. Game 2
In front of you are objects which do you think are
polymers?
You have 2 minutes to decide !

15. Can you eat polymers ?!!!!

17. Game 3
Imagine life without polymers !
Discuss what you would miss most !

18. Structure
Structure is the fundamental issue
Decides on the performance of the Material.
DIAMOND OR GRAPHITE ?????

20. Game 4
You have spaghetti sticks in front of you can you
construct the molecular structure on the sheet
provided ?????
You have 5 minutes.

21. Polymers in Nature
Nature is amazing look at these polymers!!!!
Can you recognise them?

22. Polymer Research
Spider webs as a source of polymer
Bacteria polymer for heart valves
Shells/molluscs for new materials - chitin

23. Current Material Development
Biodegradable materials
Nanomaterials:one billionth of a metre, Human hair: ~10,000 nanometers in
diameter, sunscreens coat your skin with a layer of nanoscopic titanium
dioxide.
Nano-coatings on scratch-resistant car bumpers, corrosion resistant paints,
andwound dressings.

24. Current Material Development
“Smart” materials:Self-healing materials ability to repair damage due to
normal usage, thus expanding the material's lifetime : Shape memory
materials maintain fixed shape even after distortion

25. New Materials Challenge !
Can you think of Future Materials?????

26. HOPE YOU ENJOYED THIS WORKSHOP ON MATERIAL SCIENCE !!!
NO LIMITS TO LEARNING!
BELIEVE & YOU CAN ACHIEVE!
Dr Lakshmi Sharma
www.drlakshmisharma.com