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Memory Alloy Research Paper

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There are various types of memory shape alloys such as those listed in Figure X, all having their own unique properties and transformation temperatures. However, the three main types of shape memory alloys include copper-zinc-aluminium-nickel, copper-aluminium-nickel, and nickel-titanium. These three main types are discussed in further below. Copper-Zinc-Aluminium is one of two popular copper based alloys. This alloy is relatively inexpensive to make and usually contains contains 15-30% Zn, 3-7% Al, with the rest of the alloys containing copper. Unlike the other three main alloys, the transformation temperature for CuZnAl has quite a high range, from -180◦C and 200◦C. Of course the exact composition of this alloy does influence the exact
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