In the previous article, the main components of neodymium magnets are introduced, which is the metal dysprosium element, what is the role of adding dysprosium to rare earth Ndfeb magnets? What is the impact of little dysprosium? The following is the topic content.
What is the reason for the addition of dysprosium to the neodymium magnet?
The main reason for adding metal dysprosium to neodymium magnets is to improve the magnetic properties of neodymium magnets and increase coercivity. Making it more difficult for magnets to magnetize and demagnetize, thereby improving stability and reliability.
The illustration is a square countersunk magnets
Ndfeb strong magnet little dysprosium will have what effect?
In brief, if Nd-Fe-B is short of Nd element, it may lead to the decrease of remanence, that is, we say that the magnetism is weak. If there is high grade permanent magnet of dysprosium, the lack of dysprosium will lead to the decrease of magnetic properties and Coercivity, which can be understood as the decrease of high temperature resistance.
Guess you also want to know how much of each grade of NdFeb contains metal dysprosium?
The content of dysprosium metal added to M-grade neodymium iron boron is 0-1%
The content of dysprosium metal added to SH grade neodymium iron boron is 0-2%
The content of dysprosium metal added to SH grade neodymium iron boron is 1-4.5%
The content of dysprosium metal added to UH grade neodymium iron boron is 3-6%
The content of dysprosium metal added to EH grade neodymium iron boron is 4-10%
The above data are empirical values, not fixed values, for reference only!
In general, the addition of the metal dysprosium can optimize the magnetic properties of neodymium magnets, making them more efficient and reliable in a wide range of applications. However, adding dysprosium also increases material costs, so trade-offs need to be made in design and manufacturing according to specific application needs.