Application and characteristics of diamond

Diamond is a mineral composed of carbon. Diamond is the hardest substance in nature, so it has many important industrial uses, such as fine grinding materials, high-hard cutting tools, various types of drill bits, wire drawing dies. Diamond is also used as part of many precision instruments. Diamonds come in a variety of colors, from colorless to black. They can be transparent, translucent or opaque. Most diamonds are mostly yellow. The refractive index of diamond is very high, and the dispersion property is also very strong, which is why the diamond reflects a colorful flash.

The color of the diamond depends on the degree of purity, the type and content of the impurity element contained.

Very pure colorless, generally in different degrees of yellow, brown, gray, green, blue, opal and purple;

2. Under cathode rays, X-rays and ultraviolet rays, different colors of green, sky blue, purple, yellow fluorescence will be emitted;

3. Pure transparent, containing impurities translucent or opaque;

4. Light blue phosphorescence in the dark room after sunlight exposure;

5. Diamond luster, grease or metal luster, high refractive index, generally 2.40-2.48.

Artificial diamond and natural diamond difference:

1, difference between synthetic diamond and diamond solvent is different.

Natural diamond is grown in a silicate solution, so the solubility of carbon is very low. But synthetic diamond are different, its carbon solubility is much higher than silicate,

2, the difference between artificial diamond and diamond temperature is different.

The growth temperature of natural diamond is about 1000-1300 degrees Celsius, and the growth temperature of artificial diamond is above 1400 degrees Celsius.

3, difference between synthetic diamond and diamond saturation.

The saturate of synthetic diamond is greater than that of natural diamond, so in any case it can be predicted that the surface of synthetic diamond is rougher, but the actual observed synthetic diamond shows a smoother interface.

Industrial use of diamond: geological drill and petroleum drill diamond, wire drawing die diamond, abrasive diamond, dresser diamond, glasscutter diamond, hardness tester indenter diamond, crafts diamond. Diamond is used to generate diamond film on the surface of metal, plastic, glass and other materials. Such as semiconductor and semiconductor device heat sink resistance, electrical insulation layer.

Use of diamond grinding wheel:

Due to the characteristics of diamond abrasives (high hardness, high compressive strength, good wear resistance), diamond abrasives become the ideal tool for grinding hard and brittle materials and cemented carbide in grinding processing, which is not only high efficiency, high precision, but also good roughness, less abrasive consumption, long service life, and can also improve working conditions. Therefore, it is widely used in metals and non-metallic hard and brittle materials with low iron content that are difficult to process with ordinary abrasive tools, such as cemented carbide, high aluminum porcelain, optical glass, agate gems, semiconductor materials, stone and so on.