Processing and Characterization of High-temperature Nickel-titanium-hafnium Shape Memory Thin Films
Title | Processing and Characterization of High-temperature Nickel-titanium-hafnium Shape Memory Thin Films PDF eBook |
Author | Jinping Zhang |
Publisher | |
Pages | 448 |
Release | 2002 |
Genre | Hafnium |
ISBN |
SMST-2006
Title | SMST-2006 PDF eBook |
Author | Brian A. Berg |
Publisher | ASM International |
Pages | 815 |
Release | 2008-01-01 |
Genre | Technology & Engineering |
ISBN | 1615031200 |
Thermomechanical Characterization of Nickel-titanium-copper Shape Memory Alloy Films
Title | Thermomechanical Characterization of Nickel-titanium-copper Shape Memory Alloy Films PDF eBook |
Author | |
Publisher | |
Pages | 16 |
Release | 2000 |
Genre | |
ISBN |
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 'shape remembering' 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.
Thermomechanical Characterization of Nickel-Titanium Copper Shape Memory Alloy Films
Title | Thermomechanical Characterization of Nickel-Titanium Copper Shape Memory Alloy Films PDF eBook |
Author | KP. Seward |
Publisher | |
Pages | 13 |
Release | 2001 |
Genre | Microactuators |
ISBN |
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 "shape remembering" 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.
Advanced Structural Materials
Title | Advanced Structural Materials PDF eBook |
Author | Winston O. Soboyejo |
Publisher | CRC Press |
Pages | 526 |
Release | 2006-12-21 |
Genre | Technology & Engineering |
ISBN | 1420017462 |
A snapshot of the central ideas used to control fracture properties of engineered structural metallic materials, Advanced Structural Materials: Properties, Design Optimization, and Applications illustrates the critical role that advanced structural metallic materials play in aerospace, biomedical, automotive, sporting goods, and other indust
Thin Film Shape Memory Alloys
Title | Thin Film Shape Memory Alloys PDF eBook |
Author | Shuichi Miyazaki |
Publisher | Cambridge University Press |
Pages | 487 |
Release | 2009-09-03 |
Genre | Technology & Engineering |
ISBN | 1139481045 |
This book, the first dedicated to this exciting and rapidly growing field, enables readers to understand and prepare high-quality, high-performance TiNi shape memory alloys (SMAs). It covers the properties, preparation and characterization of TiNi SMAs, with particular focus on the latest technologies and applications in MEMS and biological devices. Basic techniques and theory are covered to introduce new-comers to the subject, whilst various sub-topics, such as film deposition, characterization, post treatment, and applying thin films to practical situations, appeal to more informed readers. Each chapter is written by expert authors, providing an overview of each topic and summarizing all the latest developments, making this an ideal reference for practitioners and researchers alike.
Nanocontact Characterization of Shape-memory Titanium-nickel Films
Title | Nanocontact Characterization of Shape-memory Titanium-nickel Films PDF eBook |
Author | Xiaoguang Ma |
Publisher | |
Pages | 326 |
Release | 2005 |
Genre | |
ISBN |