Identification of optimized Ti–Ni–Cu shape memory alloy compositions for high-frequency thin film microactuator applications
| Autor: | Robert Zarnetta, M Ehmann, Alan Savan, Alfred Ludwig |
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| Rok vydání: | 2010 |
| Předmět: |
Thermal hysteresis
Materials science Shape-memory alloy Composition (combinatorics) Condensed Matter Physics Atomic and Molecular Physics and Optics Transformation (music) Microactuator Mechanics of Materials Phase (matter) Signal Processing Electronic engineering Figure of merit General Materials Science Electrical and Electronic Engineering Thin film Composite material Civil and Structural Engineering |
| Zdroj: | Smart Materials and Structures. 19:065032 |
| ISSN: | 1361-665X 0964-1726 |
| Popis: | Ti–Ni–Cu shape memory thin films within a broad composition range were investigated by the cantilever deflection method using combinatorial methods. Optimal compositions with improved functional properties, i.e. large recovery stress, high transformation temperatures, low thermal hysteresis width and small temperature interval of transformation, were identified using a newly defined figure of merit. Of the investigated alloys, Ti50Ni41Cu9 and Ti45Ni46Cu9 exhibit the best shape memory properties for compositions showing a and a -phase transformation, respectively. |
| Databáze: | OpenAIRE |
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