Hexaferrite Permanent Magnetic Materials

Author : Sami H. Mahmood,Ibrahim Abu-Aljarayesh
Publisher : Materials Research Forum LLC
Page : 128 pages
File Size : 43,9 Mb
Release : 2016-10-10
Category : Technology & Engineering
ISBN : 9781945291074

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Hexaferrite Permanent Magnetic Materials by Sami H. Mahmood,Ibrahim Abu-Aljarayesh Pdf

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.

Author : Carl Heck
Publisher : Elsevier
Page : 797 pages
File Size : 48,9 Mb
Release : 2013-10-22
Category : Science
ISBN : 9781483103174

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Magnetic Materials and Their Applications by Carl Heck Pdf

Magnetic Materials and their Applications discusses the principles and concepts behind magnetic materials and explains their applications in the fields of physics and engineering. The book covers topics such as the principal concepts and definitions related to magnetism; types of magnetic materials and their electrical and mechanical properties; and the different factors influencing magnetic behavior. The book also covers topics such as permanent-magnet materials; magnetic materials in heavy-current engineering; and the different uses of magnetic materials. The text is recommended for physicists and electrical engineers who would like to know more about magnetic materials and their applications in the field of electronics.

Author : John J. Croat,John Ormerod
Publisher : Woodhead Publishing
Page : 455 pages
File Size : 46,6 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 : Peter Campbell
Publisher : Cambridge University Press
Page : 228 pages
File Size : 50,5 Mb
Release : 1996-06-28
Category : Science
ISBN : 0521566886

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Permanent Magnet Materials and Their Application by Peter Campbell Pdf

Comprehensive design text for permanent magnets and their application.

Author : Alex Goldman
Publisher : Springer Science & Business Media
Page : 656 pages
File Size : 47,6 Mb
Release : 2012-12-06
Category : Technology & Engineering
ISBN : 9781461549178

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Handbook of Modern Ferromagnetic Materials by Alex Goldman Pdf

Below is a copy of Professor Takeshi Takei's original preface that he wrote for my first book, Modem Ferrite Teclmology. I was proud to receive this preface and include it here with pride and affection. We were saddened to learn of his death at 92 on March 12, 1992. Preface It is now some 50 years since ferrites debuted as an important new category of magnetic materials. They were prized for a range of properties that had no equivalents in existing metal magnetic materials, and it was not long before full-fledged research and development efforts were underway. Today, ferrites are employed in a truly wide range of applications, and the efforts of the many men and women working in the field are yielding many highly intriguing results. New, high-performance products are appearing one after another, and it would seem we have only scratched the surface of the hidden possibilities of these fascinating materials. Dr. Alex Goldman is well qualified to talk about the state of the art in ferrites. For many years Dr. Goldman has been heavily involved in the field as director of the research and development division of Spang & Co. and other enterprises. This book, Modem Ferrite Technology, based in part on his own experiences, presents a valuable overview of the field. It is testimony to his commitment and bountiful knowledge about one oftoday's most intriguing areas of technology.

Author : Rajshree B. Jotania,Sami H. Mahmood
Publisher : Materials Research Forum LLC
Page : 274 pages
File Size : 50,5 Mb
Release : 2018-05-10
Category : Technology & Engineering
ISBN : 9781945291692

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Magnetic Oxides and Composites by Rajshree B. Jotania,Sami H. Mahmood Pdf

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.

Author : K.H.J. Buschow
Publisher : Trans Tech Publications Ltd
Page : 90 pages
File Size : 49,9 Mb
Release : 1999-01-10
Category : Technology & Engineering
ISBN : 9783035705881

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Permanent Magnetic Materials and their Applications by K.H.J. Buschow Pdf

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.

Author : Alex Goldman
Publisher : Springer Science & Business Media
Page : 446 pages
File Size : 53,5 Mb
Release : 2006-09-28
Category : Science
ISBN : 9780387294131

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Modern Ferrite Technology by Alex Goldman Pdf

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

Author : Maurice George Say
Publisher : Unknown
Page : 248 pages
File Size : 46,7 Mb
Release : 1954
Category : Technology & Engineering
ISBN : WISC:89038753059

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Magnetic Alloys and Ferrites by Maurice George Say Pdf

Author : Gagan Kumar Bhargava,Pankaj Sharma,Sumit Bhardwaj,Indu Sharma
Publisher : Materials Research Forum LLC
Page : 214 pages
File Size : 40,6 Mb
Release : 2023-03-05
Category : Technology & Engineering
ISBN : 9781644902318

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An Introduction to Hard Ferrites by Gagan Kumar Bhargava,Pankaj Sharma,Sumit Bhardwaj,Indu Sharma Pdf

Due to their excellent magnetic characteristics, hard ferrites have many high-tech applications in such areas as permanent magnets, storage devices, HF Antenna and Spin Transmission. The present book reviews the present knowledge of these materials; their processing, characterization and potential applications. The book is also useful as an introductory text for students at the postgraduate research level. Keywords: Hard Ferrites, Synthesis, BaFe12O19, SrFe12O19, Magnetization, Miniaturization, EMI Shielding, Ferrofluids, Nanomaterials, Nano-Floating Gate, Permanent Magnets, Recording Media, High-Frequency Antenna, Radar Applications, Memory Devices. Spin Transmission, Spinel Model, Synthesis Methods.

Author : Raul Valenzuela
Publisher : Cambridge University Press
Page : 336 pages
File Size : 43,9 Mb
Release : 1994-09-15
Category : Science
ISBN : 9780521364850

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Magnetic Ceramics by Raul Valenzuela Pdf

Magnetic Ceramics describes the structure, preparation techniques, magnetic properties and applications of iron-based oxides also known as ferrites; metallic magnetic materials are also covered in depth. The main purpose of the book is to provide an up-to-date overview of the relevant aspects of ferrites, which cover a wide range of magnetic properties and applications such as high-frequency transformer cores, permanent magnet cements, microwave telecommunication devices, magnetic recording media and heads. The approach is that of materials science, characteristically interdisciplinary, where chemical aspects are covered in terms of synthesis/fabrication methods and crystal structures, and physics is introduced to provide a theoretical basis to magnetic properties. A special emphasis is given to the relationship between microstructure and properties.

Author : Malcolm McCaig
Publisher : Unknown
Page : 440 pages
File Size : 41,8 Mb
Release : 1977
Category : Magnets, Permanent
ISBN : UVA:X001672217

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Permanent Magnets in Theory and Practice by Malcolm McCaig Pdf

Author : Gaurav Sharma,Amit Kumar,Pooja Dhiman
Publisher : Materials Research Forum LLC
Page : 378 pages
File Size : 44,7 Mb
Release : 2021-11-10
Category : Technology & Engineering
ISBN : 9781644901595

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Ferrite by Gaurav Sharma,Amit Kumar,Pooja Dhiman Pdf

Ferrites are highly interesting high-tech materials. The book covers their classification, structure, synthesis, properties and applications. Emphasis is placed on biomedical applications, degradation of organic pollutants, high frequency applications, photocatalytic applications for wastewater remediation, solar cell applications, removal of organic dyes and drugs from aquatic systems, and the synthesis of hexagonal ferrites. Keywords: Ferrite, Spinel Ferrite Nanoparticles, Biomedical Applications, Ferrite Based Heterojunction, Photocatalytic Degradation of Organic Pollutants, Nickel-Zinc Ferrites, Spinel Ferrite Based Nanomaterials, Water Remediation, Magnetic Nano Particles, Wastewater Treatment, Piezo-Phototronic Effect, Ferrite Based Solar Cells, Aurivillius Based Ceramics, Hexagonal Ferrites.

Author : Vincent G. Harris
Publisher : John Wiley & Sons
Page : 421 pages
File Size : 45,9 Mb
Release : 2022-11-08
Category : Technology & Engineering
ISBN : 9781394156153

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Modern Ferrites, Volume 2 by Vincent G. Harris Pdf

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).

Author : Gianmario Pellegrino,Thomas M. Jahns,Nicola Bianchi,Wen L. Soong,Francesco Cupertino
Publisher : Springer
Page : 136 pages
File Size : 42,9 Mb
Release : 2016-04-28
Category : Technology & Engineering
ISBN : 9783319322025

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The Rediscovery of Synchronous Reluctance and Ferrite Permanent Magnet Motors by Gianmario Pellegrino,Thomas M. Jahns,Nicola Bianchi,Wen L. Soong,Francesco Cupertino Pdf

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.