Smart Materials Shape Memory Alloys
What is a shape memory alloy
How does it work?
History
Applications
Other smart materials
Shimizu Mega-City Pyramid

How does it work?
One way memory effect
Original shape is formed at hot temperatures when material is cubic
Upon cooling the material transforms to the monoclinic or slanted arrangement
Material is deformed at room temperature into any shape and it will hold that shape
However upon heating it will return to the cubic phase and the original shape it took when hot