Air Temp Nitinol

[Cherryman]

I have some Nitinol somewhere in house from the last time it was a "hype" on OU.


Although neet and interesting, i found it had not much torque and still needs quite an amount of heat.


Some people forget it is also called bi-metal and most people have it in their (gas) stoves as the sensor to turn the gas on or off depending on heat.


Actually you could "easily" make it yourself, bolt two different material ( metal usually ) together at the ends and heat or cool it, it will bend.


Interesting stuff, specially for artificial muscles i think.. But you still need heat.

[memoryman]

Nitinol is nothing like bi-metal.

[Cherryman]

Nitinol is nothing like bi-metal.

Ok, fair enough, i'dont claim all knowledge, care to tell me the major difference?

[memoryman]

Nitinol is an alloy; bi-metal is two dissimilar metals bonded/joined.

[Cherryman]

Nitinol is an alloy; bi-metal is two dissimilar metals bonded/joined.

Ok, thanks for replying.


I still think the basics are the same, one substance expanding/contracting more as the other due to a temperature change, resulting in stress on the joints, joint either be molecular or bolts a meter a part
The material will bent or bent back to the same position at the same temperature, unless it is overheated to the materials Curry point and reset.