Smart Materials

Question 1

What are smart materials?

Answer 1

Smart materials are designed materials that have one or more properties that can be significantly changed in a controlled fashion by external stimuli

Question 2

Types of smart materials?

Answer 2

Stress
Temperature
Moisture, ph
Electric or magnetic fields
UV lights

Question 3

Types of smart material stimulus?

Answer 3

Phosphorescent
Thermochromic
Piezoelectric
Photochromic

Question 4

What is Piezoelectric?

Answer 4

Generates a small electric charge when sensors are compressed

Question 5

What is thermochromic?

Answer 5

These pigments react to heat by changing colour at specific temperatures

Question 6

What is Phosphorescent?

Answer 6

Phosphorescence is a process whereby energy from the sun is absorbed by a ‘material’ and it is released slowly over a long time, in form of light

Question 7

What is photochromic

Answer 7

Stimulates particles in a special pigment. Darkness/colour change when exposed to lightand reverses in the dark

Question 8

What is Shape memory alloy?

Answer 8

Are metal alloys that can remember their shape when heated. If the shape of the object is changed it will return to its original shape when heated.

Question 9

What is QTC-Quantum Tunnelling Composite

Answer 9

This smart material can be either a conductor or insulator. The QTC has various electrical resistance depending on the amount of pressure applied.