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Knowledge Base

by Stanford Magnets

77.How to Choose Permanent Magnet Materials
How to choose the right one for your particular application is a challenge to any use.

76.An Introduction of Permanent Magnet Materials
Permanent magnets are used in the following major groups: acoustic transducers, motors and generators, magneto mechanical devices, and magnetic field and imaging systems.

75.Pole Naming Conventions
The north pole of the magnet is the pole which, when the magnet is freely suspended, points towards the Earth's north magnetic pole in northern Canada.

74.Magnetic moment
A magnet's magnetic moment is a vector that characterizes the magnet's overall magnetic properties.

73.Magnetic field
The magnetic field (usually denoted B) is called a field because it has a value at every point in space.

72.NdFeB magnets are currently the most powerful magnets
Neodymium (also known as: Neo, NIB, NdFeB or rare earth) magnets are simply the best value, most powerful and fascinating magnets money can buy.

71.Comparisons between Neodymium Iron Boron magnets and Samarium Cobalt magnets
Neodymium Iron Boron magnets have some advantages over Samarium Cobalt magnets. Neodymium Iron Boron magnets are less expensive

70.Magnetic metallic elements
Many materials have unpaired electron spins, and the majority of these materials are paramagnetic

69.Bipolar permanent magnets for a pilot study
Bipolar permanent magnets for a pilot study

68.Alnico and Alcomax Permanent Magnets
Many strong permanent magnets have been made from alloys of aluminum, nickel and cobalt with iron

67.Permanent Magnets
Centuries ago, it was discovered that certain types of mineral rock possessed unusual properties of attraction to the metal iron

66.Coercivity and Remanence in Permanent Magnets
A good permanent magnet should produce a high magnetic field with a low mass, and should be stable against the influences which would demagnetize it.

65.Rare earth magnet
Rare earth magnets are strong permanent magnets made from alloys of rare earth elements

64.Fields of a magnet
Far away from a magnet, the magnetic field created by that magnet is almost always described (to a good approximation) by a dipole field characterized by its total magnetic moment.

63.SmCo Magnets' Composition, Series and Types
Besides the NdFeB magnets, the SmCo magnet is another type of Rare-earth magnet mainly composed of Samarium-Cobalt alloys. A SmCo magnet may have a magnetic strength comparable to that of a NdFeB one, but is higher in temperature rating and coercivity. Sm

An electromagnet in its simplest form, is a wire that has been coiled into one or more loops, known as a solenoid