what is amorphous ribbon

Let's start with amorphous materials, and there are generally two kinds of materials that people come into contact with in daily life: one is a crystalline material, and the other is an amorphous material. The so-called crystalline material means that the atomic arrangement inside the material follows a certain law. On the contrary, the internal atomic arrangement is in an irregular state, it is an amorphous material, and the general metal, whose internal atoms are arranged in order, belongs to the crystalline material. Scientists found that after the metal is melted, the internal atoms are active. Once the metal begins to cool, the atoms will slowly arrange themselves in an orderly manner according to certain crystalline laws as the temperature drops, forming crystals. If the cooling process is fast, the atoms are solidified before they can be rearranged, resulting in an amorphous alloy, which is prepared using a rapid solidification process. Hot molten steel in the molten state is sprayed onto a cooling roll rotating at high speed. The molten steel cools rapidly at a rate of millions of degrees per second, reducing the molten steel of 1300 ° C to below 200 ° C in just one thousandth of a second, forming amorphous ribbons.