At a practical level, this book reviews the basics of soft and hard magnetic materials, discusses the advantages of the different processing routes for the development of their magnetic properties, and hence assists in their optimised and economic application. Essential guidelines and formulae are compiled for the calculation of magnetic and electrical properties. Selected examples and case studies illustrate the large diversity of technical applications. Materials scientists will benefit from the description of the different processing routes and their impact on the magnetic properties. Application engineers will appreciate the comprehensive and detailed properties and characteristic curves of modern soft and hard magnetic materials. Students will profit from the survey of the basics of magnetism through to the application areas of inductive components, magnetic shielding and magnet assemblies.
DR. RAINER HILZINGER
former Chief Technology Officer and Development Director at VACUUMSCHMELZE, is a Member of the American Physical Society and the German Physical Society. He has published more than 65 scientific publications and is the holder of a number of patents. He was awarded the Georg-Sachs-Prize by the German Society for Materials Science (DGM) in 1983. Under his direction, many new materials have been developed and brought into commercial application.
DR. WERNER RODEWALD
former Head of Fundamental Research and Development of Rare-Earth permanent magnet materials at VACUUMSCHMELZE, is also a Member of the German Physical Society. Until 2005, he was member of the IEC Technical Committee TC68-WG5, which compiles standards and measuring methods for permanent magnets. In addition, he has managed national and international projects with partners from universities and industry and has published many technical articles.
Table of Contents
Introduction: Ferromagnetism, Magnetic Domain Structure, Magnetization Processes, Basic Material Properties of Soft and Hard Magnetic Materials, Relations between Magnetic and Electrical Quantities, Terms and Definitions, Magnetic Measurements
VAC Magnetic Materials: Crystalline Soft Magnetic Materials and Ductile Permanent Magnets, Rapidly Solidified Amorphous and Nanocrystalline Materials, Properties and Characteristic Curves of Soft Magnetic Materials and Ductile Permanent Magnets, Production of Rare Earth-Transition Metal Magnets, Typical Magnet Properties, Demagnetization Curves, Temperature Stability, Corrosion Behaviour and Coating, Mechanical Properties of Sintered RE-TM Magnets
Applications: Magnetic Shielding, Current Sensors, Residual Current Devices, Current Transformers for Electronic Electricity Meters, Motor Applications, Wind Power Generators, Wigglers and Undulators, Power Transformers, Common Mode Chokes