Introduction of Cubic boron nitride (CBN) powder
Cubic boron nitride (CBN) powder is a superhard material second only to diamond in hardness. It not only has many excellent properties of diamond, but also has higher thermal stability and chemical inertness to iron group metals and their alloys. As an engineering material, it has been widely used in the processing industry of ferrous metals and their alloys. At the same time, it has been applied in a series of high-tech fields due to its excellent thermal, electrical, optical and acoustic properties, and it has become a promising functional material.
Cubic boron nitride micropowder is used in precision grinding, grinding, polishing and superfinishing to achieve high-precision machined surfaces. It is suitable for binder systems such as resin, metal, ceramics, etc. It can also be used to produce polycrystalline composite sintered body, and can also be used as loose abrasive particles and abrasive paste.
Due to its excellent chemical and physical properties, such as high hardness, high thermal stability and chemical inertness second only to diamond, black cubic boron nitride CBN has been widely used as a superhard abrasive in the processing fields of different industries. It is an indispensable material for automobile, aerospace, mechatronics, microelectronics and other industries, so it has also received great attention from developed countries.
There are many methods for synthesizing CBN in addition to static high pressure catalyst method, such as static high pressure direct conversion method, dynamic impact method, vapor deposition method, etc. Some of these methods, such as vapor deposition method, develop rapidly. But so far, the main method for industrial synthesis of CBN is still the static high pressure catalyst method, and the research on the synthesis of CBN mainly focuses on this aspect.
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