Smart Materials

Question 0

Name two smart materials

Answer 0

Thermochromic Paint

Photochromic Paint

Question 1

What does smart materials mean?

Answer 1

A material that can change it’s properties

The properties will change due to temperature, light, pH

Question 2

What is Thermochromic paint?

Answer 2

Changes colour with a change in temperature

Question 3

What is photochromic paint?

Answer 3

Changes colour with a change in light strength

Question 4

What are the two ‘shape memory’ smart materials called?

Answer 4

Shape memory ALLOY

Shape memory POLYMER

Question 5

What is a shape memory alloy?

Answer 5

A mixture of metals which when heated can remain the original shape

Question 6

What is the metals mixed in a shape memory alloy?

Answer 6

Nickel and titanium called NITINOL

Question 7

What is so special about shape memory ALLOYS?

Use?

Answer 7

Can be bent into any shape when cold then when heated it goes back to its original shape

E.g. Coffeepot thermostat

Question 8

What is a shape memory POLYMER?

Answer 8

This is a form of PLASTIC and can retain it’s original shape when heated

Question 9

Suggest one use for shape memory POLYMERS

Answer 9

Car Bumpers

If dented it can be heated and regain original shape