Supermagnets, Hard Magnetic Materials

Supermagnets, Hard Magnetic Materials

Author: G.J Long

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 840

ISBN-13: 9401133247

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The book you are now holding represents the final step in a long process for the editors and organizers of the Advanced Study Institute on hard magnetic materials. The editors interest in hard magnetic materials began in 1985 with an attempt to better understand the moments associated with the different iron sites in Nd Fe B. These 14 moments can be obtained from neutron diffraction studies, but we qUickly realized that iron-57 Mossbauer spectroscopy should lead to a better determination of these moments. However, it was also realized that the complex Mossbauer spectra obtained for these hard magnetic materials could not be easily understood without a broad knowledge of their various structural, electronic, and magnetic properties. Hence it seemed useful to the editors to bring together scientists and engineers to discuss, in a tutorial setting, the various properties of these and future hard magnetic materials. We believe the inclusion of engineers as well as scientists in these discussions was essential because the design of new magnetic materials depends very much upon the mode in which they are used in practical devices.


Rare-earth Iron Permanent Magnets

Rare-earth Iron Permanent Magnets

Author: J. M. D. Coey

Publisher: Oxford University Press

Published: 1996

Total Pages: 562

ISBN-13: 9780198517924

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Rare-earth iron permanent magnets combine the magnetization of iron or cobalt with the anisotropy of a light rare-earth in intermetallic compounds which exhibit nearly ideal hysteresis. The rare-earth iron magnets are indispensable components in a vast range of electronic and electromechanical devices. This book covers the principles of permanent magnetism, magnet processing, and applications in a series of interlocking chapters written by experts in each area. Based on the findings of the Concerted European Action on Magnets, it is a definitive account of the field, designed to be read by physicists, materials scientists, and electrical engineers.


Micromagnetism and the Microstructure of Ferromagnetic Solids

Micromagnetism and the Microstructure of Ferromagnetic Solids

Author: Helmut Kronmüller

Publisher: Cambridge University Press

Published: 2003-08-28

Total Pages: 466

ISBN-13: 9780521331357

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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.


Applications of Analytical Techniques to the Characterization of Materials

Applications of Analytical Techniques to the Characterization of Materials

Author: D.L. Perry

Publisher: Springer Science & Business Media

Published: 2013-06-29

Total Pages: 195

ISBN-13: 1475792263

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Over the last several years, the field of materials science has witnessed an explosion of new, advanced materials. They encompass many uses and include superconductors, alloys, glasses, and catalysts. Not only are there quite a number of new enhies into these generic classes of materials, but the materials themselves represent a wide array of physical forms as well. Bulk materials, for example, are being synthesized and applica tions found for them, while still other materials are being synthesized as thin films for yet still more new (and in some cases, as yet unknown) applications. The field continues to expand with (thankfully!) no end in sight as to the number of new possibilities. As work progresses in this area, there is an ever increasing demand for knowing not only what material is formed as an end product but also details of the route by which it is made. The knowledge of reaction mechanisms in their synthesis many times allows a researcher to tailor a preparative scheme to either arrive at the final product in a purer state or with a better yield. Also, a good fundamental experimental knowledge of impuri ties present in the final material helps the investigator get more insight into making it.


Hexaferrite Permanent Magnetic Materials

Hexaferrite Permanent Magnetic Materials

Author: Sami H. Mahmood

Publisher: Materials Research Forum LLC

Published: 2016-10-10

Total Pages: 198

ISBN-13: 1945291079

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This concise book presents the basic concepts of magnetism and magnetic properties pertinent to permanent magnetic materials. Emphasis is placed on hexaferrite materials for permanent magnet applications, with M-type ferrites as the focal point. The relatively high metallicity of magnetic materials for practical applications imposes limitations for their efficient use. Accordingly, magnetic oxides with ferromagnetic properties emerged as the most widely used magnetic materials for practical applications, owing to their characteristic high resistivity and low eddy current losses, chemical stability, simplicity of production in mass quantities, and other favorable characteristics. An important class of these oxides is the class of hexagonal ferrites developed in the early 1950’s, which dominated the world market of permanent magnet applications since the end of the 1980’s. Among these ferrites, the magnetoplumbite (M-type) hexaferrite, is produced nowadays in large quantities at very competitive low prices, thus providing the permanent magnet market with probably the most cost-effective magnetic material.


Advanced Topics in Materials Science and Engineering

Advanced Topics in Materials Science and Engineering

Author: J.L. Morán-López

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 355

ISBN-13: 1461528429

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This volume contains the papers presented at the First Mexico-U.S.A. Symposium on Materials Sciences and Engineering held in Ixtapa, Guerrero, Mexico, during Septem ber 24-27, 1991. The conference was conceived with the primary objective of increas ing the close ties between scientists and engineers in both Mexico and the U.S. with an interest in materials. The conference itself would have not taken place without the drive, determination and technical knowledge of John K. Tien of the University of Texas at Austin and of Francisco Mejia Lira of the Universidad de San Luis Potosi. This book is dedicated to their memory. The event brought together materials scientists and engineers with interests in a broad range of subjects in the processing, characterization and properties of advanced materials. Several papers were dedicated to structural materials ranging from ferrous alloys to intemetallics, ceramics and composites. The presentation covered properties, processing, and factors that control their use, such as fatigue and corrosion. Other materials and properties were also explored by U.S. and Mexican participants. Sev eral papers dealt with the characterization and properties of magnetics, optical and superconductor materials, nanostructured materials, as well as with computational and theoretical aspects likely to impact future materials research and development.


Physics of Magnetism and Magnetic Materials

Physics of Magnetism and Magnetic Materials

Author: K.H.J Buschow

Publisher: Springer Science & Business Media

Published: 2003-01-31

Total Pages: 176

ISBN-13: 0306474212

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In this book, the fundamentals of magnetism are treated, starting at an introductory level. The origin of magnetic moments, the response to an applied magnetic field, and the various interactions giving rise to different types of magnetic ordering in solids are presented and many examples are given. Crystalline-electric-field effects are treated at a level that is sufficient to provide the basic knowledge necessary in understanding the properties of materials in which these effects play a role. Itinerant-electron magnetism is presented on a similar basis. Particular attention has been given to magnetocrystalline magnetic anisotropy and the magnetocaloric effect. Also, the usual techniques for magnetic measurements are presented. About half of the book is devoted to magnetic materials and the properties that make them suitable for numerous applications. The state of the art is presented of permanent magnets, high-density recording materials, soft-magnetic materials, Invar alloys and magnetostrictive materials. Many references are given.


Concise Encyclopedia of Magnetic and Superconducting Materials

Concise Encyclopedia of Magnetic and Superconducting Materials

Author: K.H.J. Buschow

Publisher: Elsevier

Published: 2005-12-28

Total Pages: 1361

ISBN-13: 0080457657

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Magnetic and superconducting materials pervade every avenue of the technological world – from microelectronics and mass-data storage to medicine and heavy engineering. Both areas have experienced a recent revitalisation of interest due to the discovery of new materials, and the re-evaluation of a wide range of basic mechanisms and phenomena.This Concise Encyclopedia draws its material from the award-winning Encyclopedia of Materials and Engineering, and includes updates and revisions not available in the original set -- making it the ideal reference companion for materials scientists and engineers with an interest in magnetic and superconducting materials. - Contains in excess of 130 articles, taken from the award-winning Encyclopedia of Materials: Science and Technology, including ScienceDirect updates not available in the original set - Each article discusses one aspect of magnetic and superconducting materials and includes photographs, line drawings and tables to aid the understanding of the topic at hand - Cross-referencing guides readers to articles covering subjects of related interest


Magnetism

Magnetism

Author: Etienne du Trémolet de Lacheisserie

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 532

ISBN-13: 1461511291

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This book deals with the basic phenomena that govern the magnetic properties of matter, with magnetic materials and with the applications of magnetism in science, technology and medicine. It is the collective work of twenty-one scientists, most of them from Laboratoire Louis Neel du CNRS in Grenoble, France. The original version, in French, was edited by Etienne du Trémolet de Lacheisserie, and published in 1999. The present version involves, beyond the translation, many corrections and complements.


先进磁性材料手册第3卷:先进磁性材料的制作和加工

先进磁性材料手册第3卷:先进磁性材料的制作和加工

Author: David J. Sellmyer

Publisher: 清华大学出版社有限公司

Published: 2005

Total Pages: 384

ISBN-13: 9787302086062

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本书共分四卷,每一卷集中论述一个具体的研究领域。每一章首先对该章的基本概念和重要观念进行阐述,然后从实验和理论方面进行详细说明,最后介绍该领域的发展前景以及新的思想。本卷对近年来各种磁性材料的制作加工原理和性能的相关性进行分析总结并瞻望未来。