What is superhard material?

Superhard materials have unparalleled special properties of other materials, has become an irreplaceable new material in the field of industrial applications, has been widely used in metallurgy, oil drilling, construction engineering, machining, instrumentation, electronics industry, aerospace and modern cutting-edge science fields, the largest amount of stone industry even leave superhard materials and tools it is extremely difficult to develop.

Superhard materials refer to materials whose hardness can be compared with diamond. At present, the superhard materials used are mainly cubic boron nitride and diamond, but there are many superhard materials under development, such as boron carbide, twin diamond, silicon carbide and other group III and IV intergroup compounds.

Diamond is currently known to be the hardest substance in the world, and the hardness of C60 may be no less than diamond, but it has not been determined. Cubic boron nitride hardness is second only to diamond. The hardness of these two superhard materials is much higher than that of other materials, including abrasive materials corundum, silicon carbide and hard tool materials such as tool materials carbide and high-speed steel.

Therefore, superhard materials are suitable for manufacturing tools for processing other materials, especially in the processing of hard materials, with incomparable advantages, occupying an irreplaceable important position. Because of this, superhard materials have been widely used in industry. In addition to being used to manufacture tools, superhard materials have some special properties in optical, electrical and thermal aspects, and are an important functional material, which has attracted great attention, and the performance and use of this aspect are constantly being researched and developed.

The development of superhard materials in China has gone through more than 30 years since the first laboratory synthesis of diamond in 1963. After the whole process from scratch, from small to large, from the laboratory to commercial production, it has become a global diamond production country, and the output of artificial diamond has ranked first in the world.

Major producer of superhard materials abroad

Element Six

Diamond Innovation

US Synthetic

ILJIN Diamond

Sumitomo