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Training Microstructure And Magneto Mechanical Properties Of Ni Mn Ga Magnetic Shape Memory Alloys
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Book Synopsis Composition, Structure and Magneto-mechanical Properties of Ni-Mn-Ga Magnetic Shape-memory Alloys by : Markus Chmielus
Download or read book Composition, Structure and Magneto-mechanical Properties of Ni-Mn-Ga Magnetic Shape-memory Alloys written by Markus Chmielus and published by Logos Verlag Berlin. This book was released on 2010 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Magnetic shape-memory alloys (MSMAs) are smart materials which show in single crystalline form a magnetic field induced plastic and recoverable deformation of up to 10 %. Ni-Mn-Ga is the as most prominent representative. The shape change of MSMAs is based on the motion of twin boundaries driven by a magneto-stress due to an applied magnetic field. The plastic deformation takes place in the martensite phase and does not require a phase change as needed in shape-memory alloys (SMAs). The combination of high strain of SMAs and high actuation frequencies positions MSMAs as attractive smart actuator materials. Several aspects influence the magneto-mechanical properties. To identify the influence of composition, surface deformation, and constraints separately, this dissertation consists of three parts: first, the characterization of composition, structure, transformation temperatures, magnetic and mechanical properties as a study on position within an ingot. Second, the influence of surface polishing and surface deformation on the twinning stress. Third, the influence of training and constraints on magneto-mechanical properties. It can be shown in this work that each of the investigated aspects has strong influences on i.e. martensite structure and transformation temperatures, twinning stresses, twin microstructure, and magneto-mechanical properties of MSMAs.
Book Synopsis Shape Memory Microactuators by : Manfred Kohl
Download or read book Shape Memory Microactuators written by Manfred Kohl and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 265 pages. Available in PDF, EPUB and Kindle. Book excerpt: Overview of recent achievements, describing the microactuator development of microvalves and liner actuators comprehensively from concept through prototype. Further key aspects included are three-dimensional models for handling complex SMA actuator geometries and coupled simulation routines that take multifunctional properties into account. Mechanical and thermal optimization criteria are introduced for actuator design, allowing an optimum use of the shape memory effect. It is shown that some of the prototypes presented, e.g. SMA microgrippers, already outperform conventional components.
Book Synopsis Nanoscale Magnetic Materials and Applications by : J. Ping Liu
Download or read book Nanoscale Magnetic Materials and Applications written by J. Ping Liu and published by Springer Science & Business Media. This book was released on 2010-04-05 with total page 731 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanoscale Magnetic Materials and Applications covers exciting new developments in the field of advanced magnetic materials. Readers will find valuable reviews of the current experimental and theoretical work on novel magnetic structures, nanocomposite magnets, spintronic materials, domain structure and domain-wall motion, in addition to nanoparticles and patterned magnetic recording media. Cutting-edge applications in the field are described by leading experts from academic and industrial communities. These include new devices based on domain wall motion, magnetic sensors derived from both giant and tunneling magnetoresistance, thin film devices in micro-electromechanical systems, and nanoparticle applications in biomedicine. In addition to providing an introduction to the advances in magnetic materials and applications at the nanoscale, this volume also presents emerging materials and phenomena, such as magnetocaloric and ferromagnetic shape memory materials, which motivate future development in this exciting field. Nanoscale Magnetic Materials and Applications also features a foreword written by Peter Grünberg, recipient of the 2007 Nobel Prize in Physics.
Book Synopsis International Conference on Martensitic Transformations (ICOMAT) 2008 by : Gregory Olson
Download or read book International Conference on Martensitic Transformations (ICOMAT) 2008 written by Gregory Olson and published by John Wiley & Sons. This book was released on 2013-10-09 with total page 1617 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the week of June 29 - July 5, 2008, over 300 scientists and engineers from 30 countries spanning five continents converged at the historic La Fonda Hotel in the city of Santa Fe, New Mexico, USA to participate in the 12th International Conference on Martensitic Transformations (ICOMAT-08) to fathom the peculiar world of certain crystalline materials that undergo structural change when cooled or stressed. Many of these materials can restore their original shape when reheated, thus the name "Shape Memory Alloys". In the spirit of Santa Fe, a central theme of ICOMAT-08 was INTEGRATION across many dimensions.
Book Synopsis Magnetic Shape Memory Alloys by : Xuexi Zhang
Download or read book Magnetic Shape Memory Alloys written by Xuexi Zhang and published by Springer Nature. This book was released on 2021-11-14 with total page 273 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book systematically describes the fundamentals of Magnetic shape memory alloys (MSMAs), with an emphasis on low-dimensional structures such as foams, microwires and micro-particles. The respective chapters address basic concepts and theories, the fabrication of various architectures, microstructure tailoring, property optimization and cutting-edge applications. Taken together, they provide a clear understanding of the correlation between processing and the microstructural properties of MSMAs, which are illustrated in over two hundred figures and schematics. Given its scope and format, the book offers a valuable resource for a broad readership in various fields of materials science and engineering, especially for researchers, students and engineers.
Book Synopsis Shape-Memory Alloys Handbook by : Christian Lexcellent
Download or read book Shape-Memory Alloys Handbook written by Christian Lexcellent and published by John Wiley & Sons. This book was released on 2013-04-08 with total page 295 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this book is to understand and describe the martensitic phase transformation and the process of martensite platelet reorientation. These two key elements enable the author to introduce the main features associated with the behavior of shape-memory alloys (SMAs), i.e. the one-way shape-memory effect, pseudo-elasticity, training and recovery. Attention is paid in particular to the thermodynamical frame for solid materials modeling at the macroscopic scale and its applications, as well as to the particular use of such alloys – the simplified calculations for the bending of bars and their torsion. Other chapters are devoted to key topics such as the use of the “crystallographical theory of martensite” for SMA modeling, phenomenological and statistical investigations of SMAs, magneto-thermo-mechanical behavior of magnetic SMAs and the fracture mechanics of SMAs. Case studies are provided on the dimensioning of SMA elements offering the reader an additional useful framework on the subject. Contents 1. Some General Points about SMAs. 2. The World of Shape-memory Alloys. 3. Martensitic Transformation. 4. Thermodynamic Framework for the Modeling of Solid Materials. 5. Use of the “CTM” to Model SMAs. 6. Phenomenological and Statistical Approaches for SMAs. 7. Macroscopic Models with Internal Variables. 8. Design of SMA Elements: Case Studies. 9. Behavior of Magnetic SMAs. 10. Fracture Mechanics of SMAs. 11. General Conclusion. Appendix 1. Intrinsic Properties of Rotation Matrices. Appendix 2. “Twinning Equation” Demonstration. Appendix 3. Calculation of the Parameters a, n and Q from the “Twinning” Equation. Appendix 4. “Twinned” Austenite/Martensite Equation. About the Authors Christian Lexcellent is Emeritus Professor at the École National Supérieure de Mécanique et des Microtechniques de Besançon and a researcher in the Department of Applied Mechanics at FEMTO-ST in France. He is a specialist in the mechanics of materials and phase transition and has taught in the subjects of mechanics of continuum media and shape memory alloys. He is also a member of the International Committee of ESOMAT.
Book Synopsis Design of Shape Memory Alloy (SMA) Actuators by : Ashwin Rao
Download or read book Design of Shape Memory Alloy (SMA) Actuators written by Ashwin Rao and published by Springer. This book was released on 2015-05-08 with total page 137 pages. Available in PDF, EPUB and Kindle. Book excerpt: This short monograph presents an analysis and design methodology for shape memory alloy (SMA) components such as wires, beams, and springs for different applications. The solid-solid, diffusionless phase transformations in thermally responsive SMA allows them to demonstrate unique characteristics like superelasticity and shape memory effects. The combined sensing and actuating capabilities of such materials allows them to provide a system level response by combining multiple functions in a single material system. In SMA, the combined mechanical and thermal loading effects influence the functionality of such materials. The aim of this book is to make the analysis of these materials accessible to designers by developing a "strength of materials" approach to the analysis and design of such SMA components inspired from their various applications with a review of various factors influencing the design process for such materials.
Download or read book Heusler Alloys written by Claudia Felser and published by Springer. This book was released on 2015-11-12 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gives an overview of the physics of Heusler compounds ranging from fundamental properties of these alloys to their applications. Especially Heusler compounds as half-metallic ferromagnetic and topological insulators are important in condensed matter science due to their potential in magnetism and as materials for energy conversion. The book is written by world-leaders in this field. It offers an ideal reference to researchers at any level.
Book Synopsis Development of Microactuators Based on the Magnetic Shape Memory Effect by : Yeduru, Srinivasa Reddy
Download or read book Development of Microactuators Based on the Magnetic Shape Memory Effect written by Yeduru, Srinivasa Reddy and published by KIT Scientific Publishing. This book was released on 2013-12-10 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: The giant magneto-strain effect in Ni-Mn-Ga alloys is particularly attractive for actuator applications. Two different approaches are being pursued to develop MSM microactuators. To observe large deflections of Ni-Mn-Ga microactuators, the material should be exhibiting low twinning stress and large magnetic anisotropy. In addition, design rules and boundary conditions for operating the Ni-Mn-Ga actuator material are having significant importance for evolution of performance characteristics.
Book Synopsis Shape Memory Alloys by : Farzad Ebrahimi
Download or read book Shape Memory Alloys written by Farzad Ebrahimi and published by BoD – Books on Demand. This book was released on 2017-09-20 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a result of contributions of experts from international scientific community working in different aspects of shape memory alloys (SMAs) and reports on the state-of-the-art research and development findings on this topic through original and innovative research studies. Through its five chapters, the reader will have access to works related to ferromagnetic SMAs, while it introduces some specific applications like development of faster SMA actuators and application of nanostructural SMAs in medical devices. The book contains up-to-date publications of leading experts, and the edition is intended to furnish valuable recent information to the professionals involved in shape memory alloys analysis and applications. The text is addressed not only to researchers but also to professional engineers, students, and other experts in a variety of disciplines, both academic and industrial, seeking to gain a better understanding of what has been done in the field recently and what kind of open problems are in this area.
Book Synopsis Shape Memory Materials for Smart Systems by : Dr. Manfred Kohl
Download or read book Shape Memory Materials for Smart Systems written by Dr. Manfred Kohl and published by . This book was released on 2008 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Micromagnetism and the Microstructure of Ferromagnetic Solids by : Helmut Kronmüller
Download or read book Micromagnetism and the Microstructure of Ferromagnetic Solids written by Helmut Kronmüller and published by Cambridge University Press. This book was released on 2003-08-28 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main theme of this book is micromagnetism and microstructure as well as the analysis of the relations between characteristic properties of the hysteresis loop and microstructure. Also presented is an analysis of the role of microstructure in the fundamental magnetic properties (for example, magnetorestriction or critical behaviour) of crystalline and amorphous alloys. The authors apply the theory of micromagnetism to all aspects of advanced magnetic materials including domain patterns and magnetization processes under the influence of defect structures. Coverage includes modern developments in computational micromagnetism and its application to spin structures of small particles and platelets. It will be of interest to researchers and graduate students in condensed matter, physics, electrical engineering and materials science, as well as to industrial researchers working in the electrotechnical and recording industry.
Book Synopsis Handbook of Magnetic Materials by : K.H.J. Buschow
Download or read book Handbook of Magnetic Materials written by K.H.J. Buschow and published by Gulf Professional Publishing. This book was released on 2001 with total page 606 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume 13 of the Handbook of Magnetic Materials, as the preceding volumes, has a dual purpose. As a textbook it is intended to be of assistance to those who wish to be introduced to a given topic in the field of magnetism without the need to read the vast amount of literature published. As a work of reference it is intended for scientists active in magnetism research. To this dual purpose, Volume 13 of the Handbook is composed of topical review articles written by leading authorities. In each of these articles an extensive description is given in graphical as well as in tabular form, much emphasis being placed on the discussion of the experimental material in the framework of physics, chemistry and material science. In Chapter 1 of this volume a general review of the experimental work on interlayer exchange coupling is presented along with a discussion of the current understanding of this field. There exists an extensive amount of scientific efforts devoted to 4f and 5f systems, including experimental and theoretical, as well as basic and applied research. Chapter 2 aims at reviewing a part of these efforts from the viewpoint of microscopic theory. Special attention is paid to the many new developments in the field. One of the intentions is to bring to the fore the darker areas of DFT theory applications. A review of novel experimental results and first-principle energy-band calculations of MOKE spectra will be presented in Chapter 3. Conventional co-operative phenomena, such as long-range order and elementary excitation, have realisations in nonmagnetic situations. This applies also to the phenomena of geometrical frustration. In Chapter 4 this topic is addressed by developing the basic principles underlying the magnetic phenomena.
Book Synopsis Pseudoelasticity of Shape Memory Alloys by : Andrzej Ziolkowski
Download or read book Pseudoelasticity of Shape Memory Alloys written by Andrzej Ziolkowski and published by Butterworth-Heinemann. This book was released on 2015-03-23 with total page 271 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pseudoelasticity of Shape Memory Alloys: Theory and Experimental Studies is devoted to the phenomenon of pseudoelasticity (superelasticity) exhibited by shape memory alloy materials. It provides extensive introductory content on the state-of-the-art in the field, including SMA materials development, definition of shape memory effects, and discussions on where shape memory behavior is found in various engineering application areas. The book features a survey of modeling approaches targeted at reliable prediction of SMA materials' behavior on different scales of observation, including atomistic, microscopic, mezoscopic, and macroscopic. Researchers and graduate students will find detailed information on the modern methodologies used in the process of building constitutive models of advanced materials exhibiting complex behavior. - Introduces the phenomenon of pseudoelasticity exhibited by shape memory alloy materials - Features a survey of modeling approaches targeted at reliable prediction of SMN materials' behavior on different scales of observation - Provides extensive coverage of the state-of-the-art in the field - Ideal reference for researchers and graduate students interested in the modern methodologies used in the process of building constitutive models of advanced materials
Book Synopsis Magnetic Properties of Metals and Alloys by : American Society for Metals
Download or read book Magnetic Properties of Metals and Alloys written by American Society for Metals and published by . This book was released on 1959 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Martensitic Transformation by : Zenji Nishiyama
Download or read book Martensitic Transformation written by Zenji Nishiyama and published by Elsevier. This book was released on 2012-12-02 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: Martensitic Transformation examines martensitic transformation based on the known crystallographical data. Topics covered range from the crystallography of martensite to the transformation temperature and rate of martensite formation. The conditions for martensite formation and stabilization of austenite are also discussed, along with the crystallographic theory of martensitic transformations. Comprised of six chapters, this book begins with an introduction to martensite and martensitic transformation, with emphasis on the basic properties of martensite in steels such as carbon steels. The next two chapters deal with the crystallography of martensite and discuss the martensitic transformation behavior of the second-order transition; lattice imperfections in martensite; and close-packed layer structures of martensites produced from ? phase in noble-metal-base alloys. Thermodynamical problems and kinetics are also analysed, together with conditions for the nucleation of martensite and problems concerning stabilization of austenite. The last chapter discusses the theory of the mechanism underlying martensitic transformation. This monograph will be of interest to metallurgists and materials scientists.
Book Synopsis Novel Functional Magnetic Materials by : Arcady Zhukov
Download or read book Novel Functional Magnetic Materials written by Arcady Zhukov and published by Springer. This book was released on 2016-03-03 with total page 455 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents current research on advanced magnetic materials and multifunctional composites. Recent advances in technology and engineering have resulted from the development of advanced magnetic materials with improved functional magnetic and magneto-transport properties. Certain industrial sectors, such as magnetic sensors, microelectronics, and security, demand cost-effective materials with reduced dimensionality and desirable magnetic properties such as enhanced magnetic softness, giant magnetic field sensitivity, and large magnetocaloric effect. Expert chapters present the most up-to-date information on the fabrication process, processing, tailoring of properties, and applications of different families of modern functional materials for advanced smart applications. Topics covered include novel magnetic materials and applications; amorphous and nanocrystalline magnetic materials and applications; hard magnetic materials; magnetic shape memory alloys; and magnetic oxides. The book's highly interdisciplinary and forward-looking approach will benefit the scientific community, particularly researchers and advanced graduate students working in the field of advanced magnetic materials, composites, and high-performance sensor and microwave devices.
