I believe everyone knows that in our daily life, magnets are a very common thing, and NdFeB strong magnets are a type of magnet that is widely used. As early as thousands of years ago, the working people of our country made the compass, one of the four great inventions, based on the characteristics of magnets. Until today, magnets are still very useful things. From various electronic devices to daily teaching aids and toys, magnets can often be seen. For this reason, we will take you to learn about the common sense of NdFeB strong magnets in detail:

We know that the main component of magnets is ferroferric oxide, and NdFeB strong magnets are no exception. However, due to the nature of ferroferric oxide itself, its attraction to iron objects is not too strong, and its magnetism will gradually weaken over time. In this case, how can we make a magnet with stronger attraction and less prone to decay? Under this premise, NdFeB strong magnets came into being.

This kind of magnet with a shiny surface treated with anti-corrosion is a NdFeB strong magnet, and its chemical formula is Nd2Fe14B. The commonly used NdFeB strong magnet is made of neodymium, iron and boron, which are sintered at high temperature. It is the strongest artificial magnet so far. If the core element of traditional ferroferric oxide is iron, then the reason why NdFeB strong magnet has such strong magnetism is the role of neodymium.

Neodymium is the fourth element of the lanthanide family of rare earth elements. Like iron, cobalt, nickel and gadolinium mentioned above, it can also be attracted by magnets. In addition, neodymium is the most active element in the lanthanide series, so it is as easy to be oxidized as iron, which is why there is a coating on the surface of NdFeB strong magnet. If neodymium is used to enhance magnetism, then the role of boron should not be underestimated. This black thing is boron:

In the periodic table, boron is located to the left of carbon, so boron chemistry similar to carbon-centered organic chemistry has recently appeared. In NdFeB strong magnets, boron is equivalent to the mediator between neodymium and iron. Boron expands the magnetism that the material can produce while ensuring the stability of its molecular structure, making the magnetic properties of the entire magnet even allow it to absorb objects equivalent to 640 times its own weight.

The above is the common knowledge of NdFeB strong magnets that we have introduced in detail. From the above introduction, it is not difficult to see that NdFeB strong magnets are a type of processed magnets. They are currently widely used in the field of enhanced nuclear magnetic resonance imaging. Of course, they are also widely used in many occasions in life.