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Volume 47, Issue 4
  • ISSN: 0032-1400
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Abstract

Shape memory alloys (SMAs) are materials that can change their shape at a specific temperature and are used in applications as diverse as sensors, temperature sensitive switches, force actuators, fre-safety valves, orthodontic wires, fasteners, and couplers. The possible advantages offered by platinum-based SMAs involving the metals: iron, aluminium, gallium, titanium, chromium, and vanadium, are considered here and the likely systems upon which such alloys might be based are assessed. It is suggested that the most promising candidate systems are ternary-alloyed variations of the PtAl and PtTi phases, although SMAs based on PtFe have potential for low temperature applications. It appears possible to engineer a shape memory transition in the (Pt, Ni)Ti system anywhere between room temperature and 1000°C, a versatility which is probably unique among all known SMAs.

© Johnson Matthey
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2003-01-01
2024-11-21
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/content/journals/10.1595/003214003X474142156
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Platinum Alloys for Shape Memory Applications
Platinum Metals Review 47, 142 (2003); https://doi.org/10.1595/003214003X474142156
/content/journals/10.1595/003214003X474142156
/content/journals/10.1595/003214003X474142156
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  • Article Type: Research Article

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