smart materials Flashcards
1
Q
phosphorescent pigment
A
- absorbs light during the day and re-emits it when dark
- exit signs
- glow in the dark products
2
Q
photochromic pigment
A
- changes colour with light intensity
- welding goggles
- security markers that show under UV light
3
Q
piezoelectric material
A
- gives off a small electrical charge when deformed
- increases in size when electrical current is passed through
- airbag sensors
- pressure sensors
- musical greetings cards
4
Q
shape memory alloys
A
- change shape in response to a change in temperature or electrical input
- dental braces
- bioengineering
5
Q
electroluminescent wire
A
- thin copper wire coated in a phosphorescent material that glows in response to alternating current
- glow bracelets
- outdoor decorative lighting
6
Q
thermochromic pigment
A
- changes colour in response to temperature change
- thermometers
- baby bottles
