Smart Materials (2)

Question 1

What is electroluminescent film or wire ?

Answer 1

LCD, is a thin copper wire that is coated with phosphor which glows brightly when current is applied to it

Question 2

What are LCDs often used for ?

Answer 2

Luminescent clothing
Billboards
Medical too displays
Fancy dress
Nightlights
Waterproof displays

Question 3

What is quantum tunneling composite ?

Answer 3

An insulting rubber containing tiny particles of metal
When squashed the metal particles meet and allow the flow of electrical current

Meaning: it’s an insulator when resting and a conductor when pressure is applied

Question 4

Where is quantum tunneling composite ( QTC) often used ?

Answer 4

• Outdoor applications where water could damage tiny micro switches
• clothing to control smartphones and portable music players
• power tools to give variable speed controls
• touch sensitive pads

Question 5

What do self healing materials have the ability to do ?

Answer 5

Repair themselves such can extended the lifespan of products that use them

Question 6

What are some examples of self healing materials ?

Answer 6

• Polymers that can heal knife cuts in themselves
• Metals that resist corrosion
• Concrete that can heal when cracked

Question 7

What is polymorph ?

Answer 7

A polymer that becomes malleable when heated to around 62 degrees Celsius

When it cools down it becomes hard enough to sell and cut

Question 8

What is polymorph often used for ?

Answer 8

• Modeling as it can be reheated and formed again
• excellent for creating ergonomic handles