What are magnets made of? What metals can magnets attract?

Magnets were not invented by humans, but are natural magnetite. The ancient Greeks and Chinese discovered that there is a kind of naturally magnetized stone in nature, which they called "magnets". The first people to discover and use magnets should be the Chinese, who invented the compass using magnets. The compass is one of the four great inventions of ancient China. The following is an introduction to what materials magnets are made of.

Contents of this article

1. What materials are magnets made of?

2. What metals can magnets attract?

3. Do magnets emit radiation?

What material are magnets made of?

The main raw materials of magnets are rare earth metal neodymium, rare earth metal praseodymium, pure iron, aluminum, boron iron alloy and other rare earth raw materials. Magnets, also known as magnets, can generate magnetic fields and attract ferromagnetic materials such as iron, nickel, cobalt and other metals.

Magnets can be divided into permanent magnets and non-permanent magnets. Permanent magnets are natural magnets and can also be artificially made. Non-permanent magnets will only show magnetism under certain conditions.

The first people to discover and use magnets were probably the Chinese, who used magnets to invent the compass, which is one of the four great inventions of ancient China.

Magnets have a wide range of applications and can be used in traditional industry, medicine, astronomy, military and other fields.

What metals can magnets attract?

The components of magnets are iron, cobalt, nickel and other atoms. The internal structure of their atoms is quite special and they have magnetic moments. They can be divided into "permanent magnets" and "non-permanent magnets". They can attract metals such as iron, nickel and cobalt. Generally speaking, as long as it is a "ferromagnetic material", it can be attracted by a magnet.

Magnets were not invented by humans, but are natural magnetite. The ancient Greeks and Chinese discovered that there is a kind of naturally magnetized stone in nature and called it "magnet."

Permanent magnets can be natural products, also known as natural magnets, or they can be artificially made, while non-permanent magnets are only magnetic under certain conditions, usually in the form of electromagnets.

Currently, the highest performance magnets are rare earth magnets, and among rare earth magnets, neodymium iron boron is the strongest magnet, but in an environment above 200 degrees Celsius, samarium cobalt is the strongest magnet.

Do magnets radiate?

There is radiation in magnets, but the magnetic force of magnets on the market is relatively small, and the magnetic radiation generated has little effect on the human body and can be almost ignored. Generally, this radiation mainly acts on metals, which is also an important reason why magnets can absorb iron objects. In our lives, radiation actually exists everywhere, but these radiations are within the range of human acceptance, so there is no need to worry too much.

Magnets are very common in our daily life, and children are especially interested in them. Many people believe that magnets contain radiation, which will have a certain impact on children's bodies. In fact, although magnets contain certain radiation, the harm to the human body is basically negligible, so you can rest assured.

The magnetic force of magnets on the market is relatively small and they will not produce a large magnetic field. Therefore, the magnetic radiation they produce is mostly of small power, and this radiation is mainly aimed at metallic materials. This is why magnets can firmly attract iron objects and will not cause any harmful effects on the human body.

In fact, radiation exists everywhere in our lives, such as mobile phones, refrigerators, televisions, etc., but these radiations are all within the acceptable range for the human body, and the radiation caused by magnets is the same. According to surveys, only magnets with a magnetic field strength of more than 3000 will cause harm to the human body.