Modern Permanent Magnets

Modern Permanent Magnets PDF

Author: John J. Croat

Publisher: Woodhead Publishing

Published: 2022-01-27

Total Pages: 455

ISBN-13: 032388640X

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Modern Permanent Magnets provides an update on the status and recent technical developments that have occurred in the various families of permanent magnets produced today. The book gives an overview of the key advances of permanent magnet materials that have occurred in the last twenty years. Sections cover the history of permanent magnets, their fundamental properties, an overview of the important families of permanent magnets, coatings used to protect permanent magnets and the various tests used to confirm specifications are discussed. Finally, the major applications for each family of permanent magnets and the size of the market is provided. The book also includes an Appendix that provides a Glossary of Magnetic Terms to assist the readers in better understanding the technical terms used in other chapters. This book is an ideal resource for materials scientists and engineers working in academia and industry R&D. Provides an in-depth overview of all of the important families of permanent magnets produced today Includes background information on the fundamental properties of permanent magnets, major applications of each family of permanent magnets, and advances in coatings and coating technology Reviews the fundamentals of permanent magnet design

Advances in Permanent Magnetism

Advances in Permanent Magnetism PDF

Author: Rollin J. Parker

Publisher: Wiley-VCH

Published: 1990-04-02

Total Pages: 0

ISBN-13: 9780471822936

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A guide to permanent-magnet property selection and design in magnetoelectric devices. Provides a unified and comprehensive treatment of permanent magnetism, from its origins to its use in modern energy-conversion devices. Presents the history of permanent magnetism and describes the properties of permanent-magnet systems, emphasizing the new rare earth magnets. Covers all major types of permanent magnets and their typical applications, aspects of design, circuit solutions, device parameters and measurements.

Modern Permanent Magnet Electric Machines

Modern Permanent Magnet Electric Machines PDF

Author: Jacek F. Gieras

Publisher: CRC Press

Published: 2022-12-05

Total Pages: 332

ISBN-13: 1000777014

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The late 1980s saw the beginning of the PM brushless machine era, with the invention of high-energy density permanent magnets (PM) and the development of power electronics. Although induction motors are now the most popular electric motors, the impact of PM brushless machines on electromechanical drives is significant. Today, PM machines come second to induction machines. Replacement of electromagnetic field excitation systems by PMs brings the following benefits: No electrical energy is absorbed by the field excitation system and thus there are no excitation losses, causing substantial increase in efficiency Higher power density (kW/kg) and/or torque density (Nm/kg) than electromagnetic excitation Better dynamic performance than motors with electromagnetic excitation (higher magnetic flux density in the air gap) Simplification of construction and maintenance Less expensive for some types of machines Modern Permanent Magnet Electric Machines: Theory and Control serves as a textbook for undergraduate power engineering students who want to supplement and expand their knowledge in the fundamentals of magnetism, soft magnetic materials, permanent magnets (PMs), calculation of magnetic circuits with PMs, modern PM brushed DC machines and their controls, modern PM brushless DC motors and drive control, and modern PM generators. The book can help students learn more about electrical machines and can serve as a prescribed text for teaching elective undergraduate courses such as modern permanent magnet electrical machines. Since the book is written in a simple scientific language and without redundant mathematics, it can also be used by practicing engineers and managers employed in electrical machinery or electromagnetic device industries.

Permanent Magnetism

Permanent Magnetism PDF

Author: J.M.D Coey

Publisher: Routledge

Published: 2019-07-16

Total Pages: 418

ISBN-13: 1351425412

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One of the first books to approach magnetism from a metal physics perspective, Permanent Magnetism presents research ideas that are being translated into commercial reality for ferrite and Nd-Fe-B magnets, and follows the discovery of interstitial, intermetallic materials. Written by well-known authors, the book contains a comprehensive yet concise treatment of the fundamental theory underlying permanent magnetism and illustrates applications with modern, permanent magnetic materials, including ceramics and intermetallic compounds. Each chapter contains worked examples to reinforce applications and the appendices include detailed mathematics and tabular data on material properties.

Permanent Magnet and Electromechanical Devices

Permanent Magnet and Electromechanical Devices PDF

Author: Edward P. Furlani

Publisher: Elsevier

Published: 2001-09-05

Total Pages: 538

ISBN-13: 0080513697

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The book provides both the theoretical and the applied background needed to predict magnetic fields. The theoretical presentation is reinforced with over 60 solved examples of practical engineering applications such as the design of magnetic components like solenoids, which are electromagnetic coils that are moved by electric currents and activate other devices such as circuit breakers. Other design applications would be for permanent magnet structures such as bearings and couplings, which are hardware mechanisms used to fashion a temporary connection between two wires.This book is written for use as a text or reference by researchers, engineers, professors, and students engaged in the research, development, study, and manufacture of permanent magnets and electromechanical devices. It can serve as a primary or supplemental text for upper level courses in electrical engineering on electromagnetic theory, electronic and magnetic materials, and electromagnetic engineering.

Permanent Magnetic Materials and their Applications

Permanent Magnetic Materials and their Applications PDF

Author: K.H.J. Buschow

Publisher: Trans Tech Publications Ltd

Published: 1999-01-10

Total Pages: 90

ISBN-13: 3035705887

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Permanent magnets play an increasingly important role in modern society because they are vital components of numerous domestic and industrial devices. The last few decades have witnessed a quite extraordinary development in the use of hard magnetic materials, especially after the advent of rare earth permanent magnets. The rare earth permanent magnets are unequalled because they combine a high magnetization with an extraordinary magnetic hardness which allows the use of such magnets having the extreme shapes and small dimensions as required in modern devices.

Magnetism and Magnetic Materials

Magnetism and Magnetic Materials PDF

Author: J. M. D. Coey

Publisher: Cambridge University Press

Published: 2010-03-25

Total Pages: 632

ISBN-13: 0521816149

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An essential textbook for graduate courses on magnetism and an important source of practical reference data.

Handbook of Magnetic Materials

Handbook of Magnetic Materials PDF

Author: Ekkes H. Brück

Publisher: Elsevier

Published: 2020-11-29

Total Pages: 216

ISBN-13: 0128210249

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Handbook of Magnetic Materials, Volume 29, highlights new advances in the field, with this new volume presenting interesting chapters written by an international board of authors on topics such as spin-orbit torque. Provides the authority and expertise of leading contributors from an international board of authors Presents the latest release in the Handbook of Magnetic Materials series

Permanent Magnet Design and Application Handbook

Permanent Magnet Design and Application Handbook PDF

Author: Lester R. Moskowitz

Publisher: Krieger Publishing Company

Published: 1995

Total Pages: 984

ISBN-13:

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Covering the design and applications of permanent magnets, this study lists properties of over 400 materials and presents diverse magnet information needed to design products rather than present theory. Appendices provide demagnetisation curves and magnetic/physical properties.