Frequently Asked Questions

Neodymium Magnets

  • Isotropic/Anisotropic
  • Curie Temperature
  • Ferromagnetism
  • Temperature Resistances
  • Bonded vs Sintered Neodymium Magnets
  • Focused/Focusing/Shaped Field Magnets

Sintered Neodymium magnets can be designed with focused field lines that concentrate their magnetic field in certain areas to increase the magnetic performance of a system, resulting in greater efficiency, reduced system size, cost and weight.

Rare Earths- Members of the Lanthanide series, plus Yttrium and Scandium

  • Neodymium
  • Praseodymium
  • Dysprosium
  • Terbium
  • Lanthanum
  • Cerium
  • Holmium
  • HREE
  • LREE

Holmium (Ho)is sometimes added to Neodymium magnets to increase their performance at higher temperatures and when exposed to high opposing magnetic fields.

Production of Neodymium Magnets

  • Neodymium Magnet Process Flow Steps
  • Coatings and Electroplate of NdFeB magnets
  • Neodymium Magnet safety
  • Hydrogen Decrepitation
  • Jet Milling

Jet milling is a clean way to mill decrepitated metal down to 3 ┬Ám powder. Jet milling is also more effective in this size range than ball milling.
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Magnetism

  • Magnetic Field
  • Magnetic Flux
  • Loss of Magnetic Flux
  • Magnetic Domains
  • Saturation Magnetization
  • Remanent Magnetization, Br Definition
  • Demagnetization
  • What is Hysteresis?
  • Hysteresis Loop
  • BH Curve
  • Eddy Current
  • Eddy Current Loss
  • Coercivity
  • Coercive Force
  • Difference between Hcb and Hcj
  • Reluctance
  • Permeance Coefficient
  • What is ferromagnetic?
  • Energy Product
  • Flux Density
  • North Pole
  • Shear Force
  • Focusing Magnets

A hysteresis loop shows the relationship between the external magnetizing force and the induced magnetic flux density.

Competitive Magnets

  • Neodymium vs Ferrite magnets
  • Neodymium vs Samarium Cobalt magnets
  • Neodymium vs Alnico magnets

coming soon

Units

  • Teslas
  • Unit of Magnetic Field
  • Gauss
  • kA/m

The unit of Tesla is signified by the capital letter "T". 1 Tesla is equal to 1KGs (Kilo Gauss) or 1000 Gauss.