Smart Mterials 3.1.2

Question 1

What is a smart material?

Answer 1

A material whose physical properties change in response to a stimuli or change in environment, when the stimuli is removed the the properties change back.

Question 2

What is a Thermochromic Pigment?

Answer 2

The product will change colour in response to temperature change.
e.g baby spoon mugs, and medical thermometers for children.

Question 3

What is Phosphorescent Pigment?

Answer 3

Absorbs light energy in the day and then re-emits the light energy in the dark.

E.g. fire exit signs, glow-in-the-dark products.

Question 4

What is Photochromic Pigment?

Answer 4

Changes colour with light intensity
e.g , sunglasses lesnses, welding goggles

Question 5

What is Electroluminescent Wire?

Answer 5

Thin copper wire coated in a phosphorescent material that glows in response to alternating current
E.g Glow bracelets, outdoor decorative lighting

Question 6

What is Shape Memory Alloy(SMA)

Answer 6

• Heated to a temperature that allows to change shape
  E.g dental braces