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What is a magnet? Learn from Magnet University

What is a magnet? The magnet is a material or an object that generates a magnetic field, and includes a permanent magnet and an electromagnet. The permanent magnet includes a neodymium magnet (NdFeBN4Fe14B), SmCo, and AlNiCo.
  • 1. What is a magnet?

    A magnet is a material or object that produces a magnetic field. This magnetic field is invisible but is responsible for the most notable property of a magnet: a force that pulls on other ferromagnetic materials, such as iron, and attracts or repels other magnets. ...Read More>>>

  • 2. What are neodymium magnets?

    Neodymium magnets are a member of the Rare Earth magnet family and are the most powerful permanent magnets in the world. They are also referred to as NdFeB magnets, or NIB, because they are composed mainly of Neodymium (Nd), Iron (Fe) and Boron (B). They are made from an alloy of neodymium, iron and...Read More>>>

  • 3. What are SmCo magnets?

    Samarium Cobalt (SmCo) magnet, is a type of rare earth magnet, is a strong permanent magnet made of an alloy of samarium and cobalt. SmCo magnets are often used in high temperature applications needing high magnetic performance and where magnetic stability over a wide range of temperatures is import...Read More>>>

  • 4. What are AlNiCo Magnets?

    AlNiCo is an acronym referring to a family of iron alloys which in addition to iron are composed primarily of aluminium (Al), nickel (Ni) and cobalt (Co), hence al-ni-co. They also include copper, and sometimes titanium. Alnico alloys are ferromagnetic, with a high coercivity (resistance to loss of ...Read More>>>

  • 5. What are Ferrite Magnets?

    Ferrite magnets are sintered permanent magnets composed of Barium or Strontium Ferrite. This class of magnets, aside from good resistance to demagnetization, has the popular advantage of low cost. Due to their low cost, Ferrite magnets enjoy a very wide range of applications, from motors and loudspe...Read More>>>

  • 6. How to choose permanent magnet?

    1. Decide the shape and size of magnets, which can server you applications best. 2. Choose Permanent Magnet Materials Permanent Magnet Material Comparison Material Cost Index Maximum Energy Products (BH)max(MGOe) Coercivity Hci(Koe) Maximum Working Temperature(C) Machinability Nd-Fe-B(sintered) 65% ...Read More>>>

  • 7. Neodymium Magnets

    1. Introduction of Neodymium Magnets: Neodymium Magnets , (also known as NdFeB, NIB or Neo magnets), the most widely used type of rare earth magnets, are permanent magnets made from an alloy of neodymium, iron and boron to form the Nd2Fe14B tetragonal crystalline structure. Neodymium Magnets are the...Read More>>>

  • 8. Neodymium Magnets Grades

    Grade of Neodymium Magnets: Neodymium magnets come in different grades such as N42, N52 or N42SH. It all starts with the letter N, all the names of neodymium magnets begin with N for neodymium. The number that follows is a little more technical as this represents the maximum energy product of the ma...Read More>>>

  • 9. Neodymium Magnets Coating

    Coating/Plating of Neodymium Magnets: Name Coating Thickness(m) Color PCT Humidity Test Salt Spray Test Collision Test White Zinc 8-15 Blue and white 3 3 3 2 Color Zinc 10-15 Multicolor 3 3 2 2 Nickel 20-30 Silver 1 1 3 1 Electroless Nickel 20-30 Silver 1 1 1 1 NiCuNi 15-30 Silver 2 1 2 1 NiSn 20-30...Read More>>>

  • 10. Magnets Safety Warnings

    MAGNET SAFETY WARNING Disclaimer: ALB Materials Inc (Owner of albmagnets.com) neither assumes nor accepts any liability for damages resulting from the handling or use of magnets. With your purchase, the buyer confirms that you have read and understood the following warnings, the buyer agrees that he...Read More>>>

  • 11. Neodymium Magnets Applications

    Neodymium magnets can be used for: Benchtop NMR spectrometers Drive motors forhybridandelectric vehicles. Electric generatorsforwind turbines Electric motors: Cordless tools Electricalpower steering Erase heads for cheap cassette recorders Head actuators for computerhard disks Lifting andcompressorm...Read More>>>

  • 12. Neodymium Magnets Production

    Production Process of Neodymium Magnets: 1. Vacuum Melting Compositions of neodymium, iron , iron-boron, dysprosium and minor additions including cobalt , copper , gallium, aluminum and others are mixed and induce-melted to form Nd2Fe14B phase and other necessary structures required for high perform...Read More>>>

  • 13. Glossary of Magnet Terminology

    Glossary of Magnet Terminology Common parameters of rare earth magnets: Material: the composition of magnets, like NdFeB(an alloy of neodymium, iron and boron) or SmCo(an alloy of samarium and cobalt) Shape: the physical shape of a magnet, like Disc, Cylinder, Block, Bar, Cube, Ring, Tube, Sphere, B...Read More>>>

  • 14. What are Rare Earth Magnets?

    Rare-earth magnets are strong permanent magnets made from alloys of rare-earth elements. Neodymium Magnets are a member of the Rare Earth magnet family and are the most powerful permanent magnets in the world. They are also referred to as NdFeB magnets, or NIB, because they are composed mainly of Ne...Read More>>>

  • 15. Specifications of Neodymium Magnets

    Physical and Mechanical Characteristics Density 7.4-7.5 g/cm3 Compression Strength 950 MPa (137,800 psi) Tensile Strength 80 MPa (11,600 psi) Vickers Hardness (Hv) 560-600 Youngs Modulus 160 GPa (23,200 ksi) Recoil Permeability 1.05 rec Electrical Resistance (R) 160 -ohm-cm Heat Capacity 350-500 J/(...Read More>>>

  • 16. What is demagnetization?

    The process of reducing or removing the magnetism of a ferromagnetic material. Rare Earth magnets have a high resistance to demagnetization, unlike most other types of magnets. They will not lose their magnetization around other magnets. However, they will begin to lose strength if they are heated a...Read More>>>

  • 17. Strength of Neodymium Magnets

    Neodymium magnets are over 10x stronger than the strongest ceramic magnets(AlNiCo Magnets). If youve never handled neodymium magnets before, you will be amazed at their strength. If you are currently using ceramic magnets in your project, you could probably use a much smaller neodymium magnet and ha...Read More>>>

  • 18. Magnetization Direction For Neodymium Magnets

    A magnet can be magnetized in a variety of directions. Anisotropic materials must be magnetically oriented during production. Therefore are inclined to a fixed orientation. Disc Cylinder Magnets, Ring Tube Magnets Orientation: Arc Wedge Magnets Orientation: ...Read More>>>

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How to choose and buy a strong neodymium magnet? ALBMagnets is a professional company for strong magnet design and manufacturing,
providing you with reliable N35, N38, N42, N52, N42SH and other grade super neodymium magnets and SmCo rare earth magnets.