Diamond little common sense

Date：2016-8-1 Click：5030

The earliest discovered diamond with India, which is the hardest substance in the world, mohs hardness for 10. Because it has many excellent mechanical properties, in addition to the ornaments, also has been widely used in the field of industrial technology, is located in the depths of the earth's carbon element reaches a certain concentration of kimberley rock, under the condition of high temperature and high pressure carbon crystal to form a diamond. Scientists, according to the principle of carbon (graphite) is used as the raw material, the artificially to graphite lead to high temperature and high pressure conditions, in order to obtain synthetic diamond, which has been more common in industry application.Natural diamond and synthetic diamond, diamond crystal free of internal defects and impurities of transparent crystal known as the gem grade diamond (diamond), it is mainly used for adornment, accounts for 10% to 15% of natural diamond, general than jin-gui huang hundreds. Crystal internal flaws, such as inclusions, spots, crack, etc.), or because it contains small amounts of other elements and make the internal is zero defect but color crystal diamond belongs to industrial grade of decoration is not ideal, used in the manufacture of diamond tools. * generally choose the high quality diamond. The basic properties of the artificial crystal similar to natural single crystal, the product quality is not stable, and with the physical material cost is higher than natural diamond, which limits its application in cutting tools.Artificial polycrystalline diamond is made up of many fine diamond, and to the diamond to the ingredient, known as polycrystalline or poly crystalline. Composite films are polycrystalline diamond composite to carbide body of a kind of superhard material, which combines the high hardness of diamond and carbide body of high strength at an organic whole, at the same time has the characteristics of easy welding and polycrystalline diamond. Diamond tool (including thin film coated tools), mainly used in all kinds of non-metal materials and non-ferrous metal materials car, milling, boring, drilling and other processes. Such as wood, glass, hard plastic, building materials, carbon fiber, ceramic and refractory materials, copper, aluminum and zinc magnesium alloy composite material, etc.