Comparison of Neodymium magnets with other common magnet types

Neodymium magnets are considered the strongest type of permanent magnet commercially available. They are made from a neodymium-iron-boron alloy (NdFeB) and are known for their exceptional magnetic strength for their size.

Here's a comparison of Neodymium magnets with other common magnet types:

• Neodymium (NdFeB): These are the strongest permanent magnets currently available. They are widely used in various applications due to their compact size and high force.

• Samarium Cobalt (SmCo): These magnets are known for their high resistance to demagnetization from heat and can withstand higher operating temperatures than Neodymium magnets. However, they are not quite as strong as Neodymium magnets.

• Ceramic (Ferrite): These are the most common and inexpensive type of permanent magnet. They are not very strong but are resistant to corrosion and demagnetization. Ceramic magnets are widely used in applications where low to moderate magnetic force is needed.

• Alnico: These magnets were one of the first types of permanent magnets developed. They are not very strong but are known for their good mechanical properties and ability to retain magnetism at high temperatures. Alnico magnets are used in some instruments and motors.

Here's a table summarizing the key characteristics of these magnet types: