Like all magnets, neodymium magnets will eventually lose their strength over time, but this process is slow and can take many years or decades. The rate at which a magnet will lose its strength depends on a number of factors, including the material of the magnet, the environment in which it is stored, and the temperature at which it is kept.
Neodymium magnets are made from an alloy of neodymium, iron, and boron, and are known for their strong magnetic properties and durability. This is why they are often referred to as permanent magnets. They can withstand high temperatures and are resistant to corrosion, which helps to extend their lifespan. However, they are still susceptible to some degradation over time.
One way that neodymium magnets can lose their strength is through a process called demagnetization, which occurs when the magnet is exposed to high temperatures. This can cause the magnetic domains within the magnet to become misaligned, which can reduce the magnet's overall strength.
To help extend the lifespan of neodymium magnets, it is recommended to store them in a cool, dry place and to avoid exposing them to high temperatures. This will help to minimize the risk of demagnetization and ensure that the magnets retain their strength for as long as possible.