دانلود کتاب Measurement and characterization of magnetic materials

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Content: Cover --
Copyright Page --
Contents --
Foreword --
Preface --
Acknowledgments --
Part I: Properties of Magnetic Materials --
Chapter 1. Basic Phenomenology in Magnetic Materials --
1.1 Magnetized Media --
1.2 Demagnetizing Fields --
1.3 Magnetization Process and Hysteresis --
Chapter 2. Soft Magnetic Materials --
2.1 General Properties --
2.2 Pure Iron and Low-Carbon Steels --
2.3 Iron-Silicon Alloys --
2.4 Amorphous and Nanocrystalline Alloys --
2.5 Nickel-Iron and Cobalt-Iron Alloys --
2.6 Soft Ferrites --
2.7 Soft Magnetic Thin Films --
Chapter 3. Operation of Permanent Magnets --
3.1 Magnetic Circuit and Energy Product --
3.2 Dynamic Recoil --
3.3 Electrical Analogy and Numerical Modeling --
Part II: Generation and Measurement of Magnetic Fields --
Chapter 4. Magnetic Field Sources --
4.1 Filamentary Coils --
4.2 Thick Coils --
4.3 AC and Pulsed Field Sources --
4.4 Permanent Magnet Sources --
4.5 Electromagnets --
Chapter 5. Measurement of Magnetic Fields --
5.1 Fluxmetric Methods --
5.2 Hall Effect and Magnetoresistance Methods --
5.3 Ferromagnetic Sensor Methods --
5.4 Quantum Methods --
5.5 Magnetic Field Standards and Traceability --
Part III: Characterization of Magnetic Materials --
Chapter 6. Magnetic Circuits and General Measuring Problems --
6.1 Closed Magnetic Circuits --
6.2 Open Samples --
Chapter 7. Characterization of Soft Magnetic Materials --
7.1 Bulk Samples, Laminations, and Ribbons: Test Specimens, Magnetizers, Measuring standards --
7.2 Measurement of the DC Magnetization Curves and the Related Parameters --
7.3 AC Measurements --
Chapter 8. Characterization of Hard Magnets --
8.1 Closed Magnetic Circuit Measurements --
8.2 Open Sample Measurements --
Chapter 9. Measurement of Intrinsic Magnetic Properties of Ferromagnets --
9.1 Spontaneous Magnetization and Curie Temperature --
9.2 Magnetic Anisotropy --
Chapter 10. Uncertainty and Confidence in Measurements --
10.1 Estimate of a Measurand Value and Measuring Uncertainty --
10.2 Combined Uncertainty --
10.3 Expanded Uncertainty and Confidence Level. Weighted Uncertainty --
10.4 Traceability and Uncertainty in Magnetic Measurements --
Appendix A: The SI and the CGS Unit Systems in Magnetism --
Appendix B: Physical Constants --
Appendix C: Evaluation of Measuring Uncertainty --
Appendix D: Specifications of Magnetometers --
List of Symbols --
Subject Index --
Last Page.
Abstract: Correct and efficient measurements are vital to the understanding of materials properties and applications. This is especially so for magnetic materials for which in last twenty years, our understanding and use have changed dramatically. New or improved materials have been created and have reached the market. The Soft amorphous alloys, the Fe-based rare-earth magnets and the giant magnetorestrictive and magnetoresistive materials have all posed challenges to measurement. At the same time new digital measurement techniques have forced a change in laboratory and commercial measuring setups. A revision of measuring standards also occurred in the 1990s with the result that there is now a lack of up-to-date works on the measurement of magnetic materials. The basic objective of this work is to provide a comprehensive overview of the properties of the hard and soft magnetic materials relevant to applications and of thoroughly discussing the modern methodologies for employed in the measurement of these properties. The balance of these topics results in a complete text on the topic, which will be invaluable to researchers, students and practitioners in industry. It will be of significant interest not only to scientists working in the fields of power engineering and materials science but also to specialists in measurement who be able to easily find all the information they need. * Comprehensive overview of the properties of the hard and soft magnetic materials * Provides applications and discusses thoroughly the modern methodologies for employed in the measurement of these properties * Provides the latest up-to-date works on the measurement of magnetic materials