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Nickel Titanium

memory metal


An alloy of Nickel and Titanium, this metal has superelasticity and has a strange property which is best described as it remembering its shape, so a change of temperature will make it spring back into the shape it was.

Incidentally, nickel-titanium isn't the only substance that exhibits this curious property; there are various alloys and substances that do it. I have even heard that pure IRON does this, but only at 900 degrees Celsius.

Here are some Nickel-Titanium links:

http://mrsec.wisc.edu/edetc/memmetal

http://herkules.oulu.fi/isbn9514252217/html/

http://www.grand-illusions.com/spoon/nitinol.htm

http://www.chem.wisc.edu/~concept/equilib.html

http://jchemed.chem.wisc.edu/JCESoft/CCA/CCA2/MAIN/MEMORYM/CD2R1.HTM

To add to here, for example to enlighten me on some good URLs, or to promote your own company if you're into memory-metal Nickel-Titanium, e-mail