New Materials Flashcards
1
Q
What is a shape memory alloy?
A
A material which can be bent out of shape but then returns to its original shape when heated to a certain temperature
2
Q
When are shape memory alloys used?
A
In glasses frames and dental braces
3
Q
What size are nanoparticles?
A
1-1000 nanometers
4
Q
How many atoms does a nanoparticle contain?
A
A few hundred
5
Q
What shape are carbon fullerenes when in nanoparticles?
A
Hexagonal rings which are organised into balls or tubes
6
Q
What uses are there for nanoparticles?
A
- industrial catalysts
- test water purity
- building materials
- cosmetics
- nano-medicine
- lubricant
- electrical circuits in computer chips
7
Q
What determines how smart materials behave?
A
Surrounding conditions eg temperature
