Ni-Ti-Cu shape memory alloy electrothermal actuator element
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United States of America Patent
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Issued Date -
Aug 22, 2002
app pub date -
Oct 22, 2001
filing date -
Dec 8, 2000
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An Ni--Ti--Cu shape memory alloy electrothermal actuator element that recovers its original shape by electrical heating, having a wire diameter of 0.5 mm or less, comprising an Ni--Ti--Cu shape memory alloy wire which contains 49.0 to 51.0 at % of Ti, and 5.0 to 12.0 at % of Cu, with the balance being made of Ni, wherein the actuator element has a deterioration rate of shape strain recovery of 0.5% or less after repeating desired times of shape recovery movement.
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