Rare Earth Iron Permanent Magnets

Author : J. M. D. Coey
Publisher : Oxford University Press
Page : 562 pages
File Size : 44,7 Mb
Release : 1996
Category : Science
ISBN : 0198517920

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Rare-earth Iron Permanent Magnets by J. M. D. Coey Pdf

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.

Author : E. A. Nesbitt,Jack Harry Wernick
Publisher : Academic Press
Page : 224 pages
File Size : 41,7 Mb
Release : 1973-01-28
Category : Science
ISBN : UCAL:B4515426

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Rare Earth Permanent Magnets by E. A. Nesbitt,Jack Harry Wernick Pdf

Rare Earth Permanent Magnets presents the discussion of the metallurgy and properties of rare earth permanent magnet alloys. The monograph initially provides the elementary aspects of magnetism to enable the reader sufficient understanding of permanent magnetism. The book then discusses the rare earth elements and their alloys with cobalt, copper, and iron; the magnetic properties of various intermetallic compounds relevant to permanent magnets; a detailed account of cast permanent magnets of the Co-Cu-Sm and Co-Cu-Ce systems and their modifications; the important methods of making and manufacturing rare earth permanent magnets by powder metallurgy methods; and comparisons between the well-known permanent magnets and the new rare earth materials. This text will be of value to students, materials engineers, and scientists.

Author : A.S. Nowick
Publisher : Elsevier
Page : 214 pages
File Size : 47,8 Mb
Release : 2012-12-02
Category : Science
ISBN : 9780323160063

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Rare Earth Permanent Magnets by A.S. Nowick Pdf

Rare Earth Permanent Magnets presents the discussion of the metallurgy and properties of rare earth permanent magnet alloys. The monograph initially provides the elementary aspects of magnetism to enable the reader sufficient understanding of permanent magnetism. The book then discusses the rare earth elements and their alloys with cobalt, copper, and iron; the magnetic properties of various intermetallic compounds relevant to permanent magnets; a detailed account of cast permanent magnets of the Co-Cu-Sm and Co-Cu-Ce systems and their modifications; the important methods of making and manufacturing rare earth permanent magnets by powder metallurgy methods; and comparisons between the well-known permanent magnets and the new rare earth materials. This text will be of value to students, materials engineers, and scientists.

Author : I. R. Harris
Publisher : North Holland
Page : 134 pages
File Size : 41,8 Mb
Release : 1989-01-01
Category : Science
ISBN : 0444880089

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Rare-earth Permanent Magnets by I. R. Harris Pdf

These papers provide an interesting collection of contributions on fundamental magnetic behaviour, microstructural studies, processing methods and applications of rare earth, iron-rich, high performance permanent magnets. The remarkably versatile nature of the Nd-Fe-B-type alloys with respect to magnet processing is very evident in these proceedings. Thus there are papers which describe the production of magnets by the die-upset-forging of melt-spun ribbon, by cold-compaction of melt-spun-ribbon with soft metals, by mechanical alloying and by hot working of cast material. Work is also reported on the production of new permanent magnets from melt-spun material based on the alloys Nd 4 Fe 78 B 18 and SmFe 11.5 Ti 1.04 . Both these alloys look promising and the former appears to be close to commercial exploitation.

Author : I.R. Harris
Publisher : Elsevier
Page : 144 pages
File Size : 42,6 Mb
Release : 2014-04-03
Category : Science
ISBN : 9780080983639

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Rare-Earth Permanent Magnets by I.R. Harris Pdf

These papers provide an interesting collection of contributions on fundamental magnetic behaviour, microstructural studies, processing methods and applications of rare earth, iron-rich, high performance permanent magnets. The remarkably versatile nature of the Nd-Fe-B-type alloys with respect to magnet processing is very evident in these proceedings. Thus there are papers which describe the production of magnets by the die-upset-forging of melt-spun ribbon, by cold-compaction of melt-spun-ribbon with soft metals, by mechanical alloying and by hot working of cast material. Work is also reported on the production of new permanent magnets from melt-spun material based on the alloys Nd4Fe78B18 and SmFe11.5Ti1.04. Both these alloys look promising and the former appears to be close to commercial exploitation.

Author : G.H.M. Koper,M. Terpstra
Publisher : Springer Science & Business Media
Page : 162 pages
File Size : 49,8 Mb
Release : 2012-12-06
Category : Technology & Engineering
ISBN : 9789401136686

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Improving the Properties of Permanent Magnets by G.H.M. Koper,M. Terpstra Pdf

The present study complements the study on patents, patent applications and other literature on rare earth metals based permanent magnets by Frits Andriessen and Marten Terpstra, published by Elsevier Applied Science in 1989, and complements in part the book on Nd-Fe permanent magnets edited by LV. Mitchell, which was the result of a workshop organized by the Commission of the European Communities and held in Brussels on 25 October 1984. The difference between the content of the first book and that of the present study is that the first is more specifically directed to various kinds and compositions of alloys used in newly developed magnets, while the present book emphasises the improvements obtained when using particular alloys. The study edited by Mitchell deals more specifically with the economic, physical and chemical aspects of rare earth metals based magnet alloys, their properties compared with the more common and classical magnets such as ferro-cobalt alloy magnets, and their applications to various fields of technology. From the present study it has become apparent that there exist only a few patents and patent applications covering a specific use of particular magnets having specific properties to a circuit, arrangement, device or electric motor. This appears to be due to the fact that every manufacturer of such circuits or arrangements applying magnets naturally wants to employ the most effective magnets.

Author : John J. Croat
Publisher : Woodhead Publishing
Page : 382 pages
File Size : 53,6 Mb
Release : 2017-10-24
Category : Technology & Engineering
ISBN : 9780081022269

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Rapidly Solidified Neodymium-Iron-Boron Permanent Magnets by John J. Croat Pdf

Rapidly Solidified Neodymium-Iron-Boron Permanent Magnets details the basic properties of melt spun NdFeB materials and the entire manufacturing process for rapidly solidified NdFeB permanent magnets. It covers the manufacturing process from the commercial production of the melt spun or rapidly solidified powder, to the production and properties of both isotropic bonded Nd and hot deformed anisotropic NdFeB magnets. In addition, the book discusses the development and history of bonded rare earth transition metal magnets and the discovery of the NdFeB compound, also covering melt spun NdFeB alloys and detailing the magnetization process and spring exchange theory. The book goes over the production of melt spinning development, the operation of a melt spinner, the processing of melt spun powder, commercial grades of NdFeB magnetic powder and gas atomized NdFeB magnetic powders. Lastly, the book touches on the major application and design advantages of bonded Nd Magnets. Features a unique perspective as the author is not only the inventor of NdFeB magnetic powder, but also played a key role in developing many of the technologies covered Provides a comprehensive look at the history, fundamental properties, production processes, design and applications of bonded NdFeB magnets Includes discussion of the rare earth supply challenge, politics, and systems as it impacts bonded NdFeB magnets

Author : Ekkes H. Brück
Publisher : Elsevier
Page : 216 pages
File Size : 46,7 Mb
Release : 2020-11-29
Category : Technology & Engineering
ISBN : 9780128210246

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Handbook of Magnetic Materials by Ekkes H. Brück Pdf

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

Author : J.M.D Coey
Publisher : Routledge
Page : 418 pages
File Size : 43,5 Mb
Release : 2019-07-16
Category : Science
ISBN : 9781351425414

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Permanent Magnetism by J.M.D Coey Pdf

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.

Author : I.V. Mitchell
Publisher : Springer
Page : 300 pages
File Size : 47,6 Mb
Release : 1985
Category : Technology & Engineering
ISBN : UCAL:B4154602

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Nd-Fe Permanent Magnets by I.V. Mitchell Pdf

Author : F. Andriessen,M. Terpstra
Publisher : Springer
Page : 172 pages
File Size : 40,8 Mb
Release : 1989-02-28
Category : Science
ISBN : STANFORD:36105030490663

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Rare Earth Metals Based Permanent Magnets by F. Andriessen,M. Terpstra Pdf

Author : John J. Croat,John Ormerod
Publisher : Woodhead Publishing
Page : 455 pages
File Size : 54,6 Mb
Release : 2022-01-27
Category : Technology & Engineering
ISBN : 9780323886406

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Modern Permanent Magnets by John J. Croat,John Ormerod Pdf

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

Author : Rollin J. Parker
Publisher : Wiley-VCH
Page : 0 pages
File Size : 54,8 Mb
Release : 1990-04-02
Category : Science
ISBN : 0471822930

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Advances in Permanent Magnetism by Rollin J. Parker Pdf

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.

Author : Georgia
Publisher : Unknown
Page : 0 pages
File Size : 43,5 Mb
Release : 2024-06
Category : Electronic
ISBN : 3384245911

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The Rise and Impact of Rare-Earth Permanent Magnets by Georgia Pdf

Author : Malcolm McCaig
Publisher : Unknown
Page : 440 pages
File Size : 48,5 Mb
Release : 1977
Category : Magnets, Permanent
ISBN : UVA:X001672217

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Permanent Magnets in Theory and Practice by Malcolm McCaig Pdf