Smart Materials Flashcards
1
Q
What are smart materials
A
any materials which properties change as a result to an external output stimulus
2
Q
What is thermochromic paint
A
a paint which changes colour due to temperature.
3
Q
what is photochromic paint
A
a paint which changes colour due to light
4
Q
what does SMA stand for
A
Shape memory alloy
5
Q
What is an example of SMA
A
Nitinol - a nickle titanium alloy which heat will return the piece to its original shape
E.g braces
6
Q
what is QTC
A
quantum tunneling composite
7
Q
how does QTC function
A
it is an insulator until you compress/stretch it then it becomes a conductor
8
Q
what is Piezoelectric material
A
a material which if you attach an electrical signal to it will move
9
Q
what is a piezoelectric transducer
A
a machine which vibrates when electric signal is sent
