Chapter 15 Magnetic materials

Chapter contents

  • 15.1 Introduction and synopsis 342
  • 15.2 Magnetic properties: definition and measurement 342
  • 15.3 Charts for magnetic properties 348
  • 15.4 Drilling down: the physics and manipulation of magnetic properties 350
  • 15.5 Materials selection for magnetic design 355
  • 15.6 Summary and conclusions 360
  • 15.7 Further reading 360
  • 15.8 Exercises 361
  • 15.9 Exploring design with CES 361
  • 15.10 Exploring the science with CES Elements 363

Migrating birds, some think, navigate using the earth’s magnetic field. This may be questionable, but what is beyond question is that sailors, for centuries, have navigated in this way, using a natural magnet, lodestone, to track it. Lodestone is a mineral, magnetite (Fe3O4), that ...

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