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Smart Wire (Smart Material)

Smart Wire (Smart Material)

HP00054321

1

Out of stock, check with us for a due date.

Your Price: £9.35 exc VAT

£9.35 exc VAT

Description
Specifications
  • Smart wire is a shape memory alloy (SMA) that changes its length with a useful pulling force when a small current is passed through it
  • SMA is a smart material which, as its name suggests, has a memory
  • The most common SMA is an alloy (mixture of metals) of nickel and titanium ‐called nitinol
  • By means of special heat treatment, a piece of SMA can be made to 'remember' a shape
  • For example, a length of wire can be made to remember that it should be straight at temperatures above 70¼C
  • If you bend this wire at normal room temperature into the shape of a paper clip, it stays bent and will continue acting as a paper clip
  • However, if you place it in a glass of water whose temperature is above 70¼C, it immediately straightens out! When cool, it remains straight until it is bent again
  • This cycle of bending and then straightening when heated can be continued millions of times
  • The temperature at which SMA 'remembers' its original form is called the transition temperature and when this point is reached, it changes shape
  • SMA has a relatively high electrical resistance and can be heated to its transition temperature by passing an electrical current through it
  • Resistance: 150Ω per metre
  • Maximum Current: 180 milliamps
  • Maximum Power: 5 Watts per metre
  • Bias Force: 0.3 N
  • Pulling Force: 1.5 N
Group 1 Science
Group 2 Chemistry
Group 3 Materials & their Properties
Group 4 Smart Materials
Style Code FE00054321
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Your Price: £9.35 exc VAT

£9.35 exc VAT

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