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Hexaferrite Permanent Magnetic Materials

Author : Sami H. Mahmood

Publisher : Materials Research Forum LLC

Page : 198 pages

File Size : 18,32 MB

Release : 2016-10-10

Category : Technology & Engineering

ISBN : 1945291079

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Book Description

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.



Magnetic Oxides and Composites

Author : Rajshree B. Jotania

Publisher : Materials Research Forum LLC

Page : 274 pages

File Size : 25,58 MB

Release : 2018-05-10

Category : Technology & Engineering

ISBN : 1945291699

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Book Description

The book focuses on the relevant basic concepts of Magnetic oxides, as well as on synthesis routes and important applications of spinel ferrites, hexaferrites and magnetic oxide nanomaterials. Keywords: Magnetic Oxides, Spinel Ferrites, Hexaferrites, Magnetoelectric Ceramic Composites, Soft Ferrites, Nano-Size Spinel Ferrites, Magnetic Nanoparticles, Device Miniaturization.



Handbook of Magnetic Materials

Author : Ekkes H. Brück

Publisher : Elsevier

Page : 216 pages

File Size : 18,85 MB

Release : 2020-11-29

Category : Technology & Engineering

ISBN : 0128210249

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Book Description

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



Modern Ferrite Technology

Author : Alex Goldman

Publisher : Springer Science & Business Media

Page : 446 pages

File Size : 34,8 MB

Release : 2006-09-28

Category : Science

ISBN : 0387294139

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Book Description

Revision of a classic reference on ferrite technology Includes fundamentals as well as applications Covers new areas such as nanoferrites, new high frequency power supply materials, magnetoresistive ferrites for magnetic recording



Modern Permanent Magnets

Author : John J. Croat

Publisher : Woodhead Publishing

Page : 455 pages

File Size : 23,77 MB

Release : 2022-01-27

Category : Technology & Engineering

ISBN : 032388640X

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Book Description

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



Permanent Magnet Materials and Their Application

Author : Peter Campbell

Publisher : Cambridge University Press

Page : 228 pages

File Size : 10,91 MB

Release : 1996-06-28

Category : Science

ISBN : 9780521566889

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Book Description

Comprehensive design text for permanent magnets and their application.



Clinical Applications of Magnetic Nanoparticles

Author : Nguyen TK Thanh

Publisher : CRC Press

Page : 1137 pages

File Size : 25,77 MB

Release : 2018-02-06

Category : Medical

ISBN : 1351685422

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Book Description

Offering the latest information in magnetic nanoparticle (MNP) research, this book builds upon the success of the first volume and provides an updated and comprehensive review, from synthesis, characterization, and biofunctionalization to clinical applications of MNPs, including the diagnosis and treatment of cancers. The book captures some of emerging research area which was not available in the first volume. Good Manufacturing Practices and Commercialization of MNPs are also included. This volume, also written by some of the most qualified experts in the field, incorporates new developments in the literature, and continues to bridge the gaps between the different areas in this field.



The Rediscovery of Synchronous Reluctance and Ferrite Permanent Magnet Motors

Author : Gianmario Pellegrino

Publisher : Springer

Page : 142 pages

File Size : 10,19 MB

Release : 2016-04-28

Category : Technology & Engineering

ISBN : 3319322028

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Book Description

This book offers an essential compendium on the analysis and design of synchronous motors for variable-speed applications. Focusing on synchronous reluctance and ferrite permanent-magnet (PM) synchronous reluctance machines, it provides a broad perspective on three-phase machines for variable speed applications, a field currently dominated by asynchronous machines and rare-earth PM synchronous machines. It also describes synchronous reluctance machines and PM machines without rare-earth materials, comparing them to state-of-the-art solutions. The book provides readers with extensive information on and finite element models of PM synchronous machines, including all relevant equations and with an emphasis on synchronous-reluctance and PM-assisted synchronous-reluctance machines. It covers ferrite-assisted machines, modeled as a subcase of PM-assistance, fractional slot combinations solutions, and a quantitative, normalized comparison of torque capability with benchmark PM machines. The book discusses a wealth of techniques for identifying machine parameters, with an emphasis on self-commissioning algorithms, and presents methods for automated machine design and optimization, including a software tool developed for this purpose. Addressing an important gap in the field of PM-less and less-PM electrical machines, it is intended as a self-contained reference guide for both graduate students and professional machine designers, and as a useful text for university courses on automated and/or optimized design of electrical machines and drives.



Modern Ferrites, Volume 2

Author : Vincent G. Harris

Publisher : John Wiley & Sons

Page : 421 pages

File Size : 10,98 MB

Release : 2022-11-08

Category : Technology & Engineering

ISBN : 1394156154

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Book Description

MODERN FERRITES, Volume 2 A robust exploration of the basic principles of ferrimagnetic and their applications In Modern Ferrites: Volume 2, renowned researcher and educator, Vincent G. Harris delivers a comprehensive overview of ferrimagnetic phenomena and discussions of select applications of modern ferrite materials in emerging technologies and applications. Volume 2 explores fundamental properties of ferrite systems, including their structure, chemistry, and magnetism, as well as practical applications, such as permanent magnets; inductors, inverters, and filters; and their use in emerging applications as metamaterials, multiferroics, and biomedical technologies. In addition to the properties of ferrites, the included resources explore the processing, structure, and property relationships in ferrites as nanoparticles, thin and thick films, compacts, and crystals. The authors discuss how these relationships are key to realizing practical device applications laying the foundation for next generation communications, radar, sensing, and biomedical technologies. This volume includes: A comprehensive review of ferrite discoveries and impacts upon ancient cultures, their scientific evolution, and societal benefits; Discussion of the origins of magnetism in ferrimagnetic oxides including superexchange theory, GKA-rules, and recent developments in density functional theory; In-depth examination of ferrite power conversion and conditioning components and their processing as low temperature co-fired ceramics; Ferrite-based electromagnetic interference suppression and electromagnetic absorption; Nonlinear microwave devices; multiferroic and emerging magnetoelectric devices; Biomedical applications of ferrite nanoparticles Perfect for RF engineers and magnetitians working in the fields of RF electronics, radar, communications, and spintronics as well as other emerging technologies. Modern Ferrites will earn a place on the bookshelves of engineers and scientists interested in the ever-expanding technologies reliant upon ferrite materials and new processing methodologies. Modern Ferrites Volume 1: Basic Principles, Processing and Properties is also available (ISBN: 9781118971468).



Permanent Magnetism

Author : J.M.D Coey

Publisher : Routledge

Page : 440 pages

File Size : 27,51 MB

Release : 2019-07-16

Category : Science

ISBN : 1351425412

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Book Description

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.