What is a diamond?
Diamonds are commonly known as "Jin Gangzuan". That is, we often say that the original diamond is a mineral composed of carbon, which is an allotrope of carbon. Diamonds are the hardest substance in nature.
The chemical formula of diamond (pure diamond) is C-4 C (carbon atom), and the spatial structure is formed by stable regular triangular pyramids alternately. A diamond is an atomic crystal, and a diamond is a macromolecule and a polymer of n C. [c (diamond)], which can only be expressed by its element symbols and notes.
Characteristics of diamonds
Diamonds have extremely high hardness and wear resistance. Its microhardness is HV 10000, which is several times higher than that of cemented carbide, so it has good cutting performance and tool durability. When processing plastics, the durability of diamond turning tools is hundreds of times higher than that of cemented carbide.
Diamond has extremely high wear resistance (the wear resistance of natural diamond is 80- 120 times that of cemented carbide, and that of synthetic diamond is 60-80 times). Plus the accuracy can reach 1. The higher the hardness of the processed material, the more prominent this advantage is. The friction coefficient of diamond is very low, which is lower than that of other tool materials, generally between 0. 1-0.3.
The difference between diamonds and diamonds
Diamond is recognized as the hardest stone in the world, and it is the finished product obtained after diamond polishing. Simply put, diamond is a simple crystal composed of carbon element formed in the deep part of the earth under high pressure and high temperature. Although human civilization has a history of thousands of years, people have only discovered and initially understood diamonds for hundreds of years, and the time to truly uncover the inner mystery of diamonds is even shorter.
Diamond is a natural substance, that is, the original stone of diamond. Diamonds are commonly known as "Jin Gangzuan". That is, diamonds, as we often say, are minerals made of pure carbon. Diamonds are the hardest substance in nature. Diamonds are widely used, such as handicrafts and industrial cutting tools. Carbon can form diamond at high temperature and high pressure.
The use of diamonds
1. Decorative diamonds
High-quality natural diamonds (diamonds) require bright luster, transparency and clarity, and no inclusions. Therefore, the color, transparency and crystal size of diamonds are the main quality grade standards of diamonds. Colorless, transparent and pure are high-quality superior products; Pure and transparent with blue and yellow is the best product; Some colors, such as dark blue diamonds, gold diamonds and black diamonds, are rare treasures.
2. Industrial diamond products
For natural type I diamond, we mainly use its high hardness and high wear resistance, and for type II diamond, we mainly use its good thermal conductivity and semiconductor characteristics to produce various diamond products (products). Used for wire drawing dies, turning tools, scribing knives, hardness tester indenters, geological and petroleum drills, grinding wheel knives, glass cutting machines, diamond pens, dresser knives and abrasives.
So much for what a diamond is and the difference between a diamond and a diamond.
I hope it will help everyone.