Actions for Thermomechanical Characterization of Nickel-Titanium Copper Shape Memory Alloy Films
Thermomechanical Characterization of Nickel-Titanium Copper Shape Memory Alloy Films / KP. Seward, PB. Ramsey, P. Krulevitch
- Conference Author
- Mechanical Properties of Structural Films (2000 : Orlando, Florida)
- Physical Description
- 1 online resource (13 pages) : illustrations, figures, tables
- Additional Creators
- Seward, KP., Krulevitch, P., Ramsey, PB., American Society for Testing and Materials, and ASTM International
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License restrictions may limit access. - Summary
- In an effort to develop a more extensive model for the thermomechanical behavior of shape memory alloy (SMA) films, a novel characterization method has been developed. This automated test has been tailored to characterize films for use in micro-electromechanical system (MEMS) actuators. The shape memory effect in NiTiCu is seen in the solid-state phase transformation from an easily deformable low-temperature state to a ¿̐ưshape remembering¿̐ư high-temperature state. The accurate determination of engineering properties for these films necessitates measurements of both stress and strain in microfabricated test structures over the full range of desired deformation. Our various experimental methods (uniaxial tensile tests, bimorph curvature tests, and diaphragm bulge tests) provide recoverable stress and strain data and the stress-strain relations for these films. Tests were performed over a range of temperatures by resistive heating or ambient heating. These measurements provide the results necessary for developing active SMA structural film design models.
- Dates of Publication and/or Sequential Designation
- Volume 2001, Issue 1413 (January 2001)
- Subject(s)
- Other Subject(s)
- ISBN
- 9780803154582 (e-ISBN)
9780803128897
0803128894 - Digital File Characteristics
- text file PDF
- Bibliography Note
- Includes bibliographical references 25.
- Other Forms
- Also available online via the World Wide Web. Tables of contents and abstracts freely available; full-text articles available by subscription.
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Also available in PDF edition. - Reproduction Note
- Electronic reproduction. W. Conshohocken, Pa. : ASTM International, 2001. Mode of access: World Wide Web. System requirements: Web browser. Access may be restricted to users at subscribing institutions.
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- Mode of access: World Wide Web.
- Source of Acquisition
- ASTM International PDF Purchase price USD25.
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