Shape memory alloy / akilli atac / akilli malzemeler

smart materials

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[MrMuffinkiller1]

sometime in the future nitinol is used in plane wings to make a type of memory wing that bends automatically when it hits a certain altitude in theory

[MrBauka94]

Abi o wiredi nerden bulabilirim??ben kazakhstanda kazakh-turk licesindi okuyorumda,ve o alloy hakindi proje yapiyorum onu nerden bulabilirim??

[Cowsplode]

I believe that there are also simple nitinol motors that also utilize the motion of the shape memory.

[justin900]

so,, where could i get one??can i buy it in the hardware store??or can i get one from some appliances...please tell me..

[archernewb]

Can you have sheet metal of this stuff? or only wire?

[ti83master]

Awesome- browsed a bit after posting this, and saw saw usage in robotica as well... and in art, for some reason :D

Tony

[kenkirbyuk]

There are quite a few applications out there - frames for glasses for instance. When the frame is bent, the stress induces the austenite phase transformation from martensite. When the force is removed, its natural state at this temperature is martensite so the material reverts to its original shape...these frames for lenses are on the market now. There are other applications in medicene such as wire to support broken bones.

[ti83master]

It remains pretty hard to understand, for me at least... but a fascinating technology indeed. But over 40 years after its discovery, has there been any real use for it?

[kenkirbyuk]

Think of it this way - the atoms are stacked in a particular way at high temp, like layers of oranges for want of description. When cooled it undergoes chemical change (known as martensitic phase transformation) and this phase has a different atomic ordering pattern. When it is heated back up it remembers the original stacking pattern so reverts back to that shape.

[2003512014]

where can i buy nitinol?