There are three main forms of magnets – permanent, temporary and electromagnets. Of those three types, permanent magnets are the type an average joe is most accustomed to. An illustration of this perhaps the most common, everyday magnet is often a fridge magnet.

They may be considered permanent because once they are magnetized they maintain their level of magnetism. It is an object constructed from a material which is magnetized plus it creates a unique persistent magnetic field.

They are often made in just about every possible shape. A superb magnet should build a high magnetic field using a low mass. Additionally, if you are in search of qualities of any good magnet you wish to make sure that it is stable against the influences that may demagnetize it.

There are numerous of several sorts of these and each type has different characteristics and properties. What differentiates these includes:
• How easily they can be demagnetized
• How strong they may be
• How their strength changes with respect to the temperature

Forms of permanent magnets include:
• Neodymium
• Samarium-cobalt
• Alnico
• Ceramic (also known as ferrite)

Neodymium and samarium-cobalt are classified as rare earth magnets. Rare earth magnets produce the largest magnetic flux together with the smallest mass. These are noted for being the strongest of all the so-called permanent magnets and therefore are tough to demagnetize.

Alnico’s name comes from its components. Alnico is constructed of aluminum, nickel and cobalt. This kind just isn’t easily troubled by temperature, yet it is easily demagnetized.

Finally, ceramic or ferrite magnets might be the most used type, mostly because of their flexibility. They can be flexible and sometimes thin, which means that they might be bent and moved in numerous various ways, which makes them excellent ways for marketing and advertising purposes. These are fairly strong and not easily demagnetized, nonetheless strength differs in line with the temperature.

The reason for permanent magnets vary greatly, including:

1. Mechanical applications depend on the attractive and repelling force of the magnet. Such applications include:
• Magnetic separators & holding devices
• Torque drives
• Bearing devices

2. Electricity applications make use of with all the magnetic field to transform mechanical energy into electricity. Such applications include:
• Generators and alternators
• Eddy current brakes

3. Mechanical energy applications make use of with all the magnetic field to transform electricity to mechanical energy. Such applications include:
• Meters
• Motors
• Speakers
• Relays

4. Applications that are meant to direct, shape and control electron and ion beams. Such applications include:
• Ion Pumps
• Cyclotrons
• Cathode-ray tubes

Permanent magnets will be the most commonly known and they are used in various products and environments. When scouting for these you need to consider its strength, performance in temperature and be it easily demagnetized.

To get more information about Strong Magnet see our new web portal.