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- What is "Neodymium"?
- What makes a Neodymium magnet better than the rest?
- What metals are magnets attracted to?
- What is a rare earth magnet?
- Do all magnets have two magnetic poles?
- What is Gauss?
- What are magnetic fields?
- Why is the grade of a magnet important?
- What things will Neodymium magnets damage?
- What is an electromagnet?
- What is induction?
- What are temporary magnets?
- What is coercivity?
- What is the Curie Temperature?
- What is saturation magnetization?
- Standard Specifications for Permanent Magnet Materials Download - PDF
- What is "Neodymium"?
Neodymium (Nd) is an element. Like Hydrogen... kinda.
In the periodic table, Nd is found in the lanthanide, or "Rare Earth" section. Nd is only one of the necessary components in an NdFeB magnet. The other important parts are, obviously: Fe or iron. and a trace amount of B or boron.
- What makes a Neodymium magnet better than the rest?
Smaller, stronger and cheaper. Does it geat any better than that? In terms
of "Bang For Your Buck", Neodymium Super Magnets are without a doubt the way
to go. Go check out some Crazy Pics and see just what kind of strength we're
talking about here.
- What metals are magnets attracted to?
Magnets attract to ferrous metals such as iron, nickel, cobalt, certain steels and other alloys. Brass, aluminum, copper, and most stainless steels, however, are non ferrous.
- What is a rare earth magnet?
"Rare Earth" is a term used to describe the lanthanide elements in the periodic table. Rare earth magnets are generally made from Neodymium or Samarium.
- Do all magnets have two magnetic poles?
Yes, all magnets have both a North and South magnetic pole. The North pole of a magnet when rotating freely will point towards the North pole of the earth. The South pole will rotate towards the South pole of the earth. Some people have asked for magnets with only a South pole, but as far as we know, no such magnet exists.
- What is Gauss?
Gauss is a unit of measurement used to describe both the coercivity
of a magnet and its saturation magnetization. Basically, it describes
how strong the magnetic fields are extending from the magnet and how strong
of a magnetic field it would take to de-magnetize the magnet. The name comes
from the mathematician physicist Carl Freidrich Gauss.
- What are magnetic fields?
Magnetic fields are moving electrical charges that attract and repel one another.
- Why is the grade of a magnet important?
The grade of a magnet (N35, N38, N40, N45, etc) is important because it specifies the quality of material used to construct the magnet. All else being equal, the higher the quality of materials used to construct the magnet, the greater the magnets strength.
- What things will Neodymium magnets damage?
Neodymium magnets can damage magnetic based storage devises such as hard drives, floppy disks and credit cards. They can also affect computer monitors, VCR's and TV"s. Large magnets can be hazardous to pacemakers.
- What is an electromagnet?
An electromagnet is a magnet with magnetic force that is generated by passing an electrical current through a copper wire when the wire is wound into a coil.
An electromagnet can be made stronger simply by adding a stronger electrical current to the coil.
- What is induction?
Induction is a term used to define how changing magnetic fields generate electric currents. This process happens when copper is exposed to changing magnetic fields, it then “induces” an electrical current.
- What are temporary magnets?
Temporary magnets take on the properties of a magnet if they are touching something magnetic. This happens when a paperclip becomes magnetic as it touches a permanent magnet. Things like wood or glass do not have the properties to become temporary magnets.
- What is coercivity?
Coercivity measures how “permanent” a magnet is. It determines how much field is needed to “demagnetize” the magnet. High quality permanent magnets have high coercivity which makes them difficult to demagnetize.
- What is the Curie Temperature?
This is a characteristic temperature that when reached, causes materials to lose their magnetism.
- What is saturation magnetization?
Saturation magnetization is the amount of magnetic field that a magnet can produce. Strong magnets have higher saturation.
- Standard Specifications for Permanent Magnet Materials Download - PDF
Click here to download or simply read online the PDF.  Don't have Adobe Acrobat? Click Here to download it for Free.
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