Development of synthetic diamond

18th century, it was discovered that the noble diamond turned out to be worth a carbon allotrope, since then, has become a preparation of synthetic diamond glory and

the dream of many scientists. A century later, graphite - Another elemental carbon form was discovered, people

We will attempt to simulate natural processes, so that the graphite in the ultra-high temperature and pressure environment into a diamond. In order to shorten the

reaction time, the need 2000 ℃ temperature and 55,000 atmospheres special conditions.
The properties of diamond films on diamond particles less, the density and hardness to be lower. Even so, it is also one of the best wear resistance, only 5 microns

thick film, life expectancy is 10 times longer than carbide steel above. We know that the album in a tiny needle

The contact surface is subjected to great pressure, while requiring extremely long wear life, as long as the tip of diamond film deposited on a layer, it can be easy

battle it. If the plastic, glass, diamond films made outside with wear-resistant coating, which can greatly extend its

Use, develop superior performance and economical products.
More importantly, the film appears to make the application of stone broke through the barriers only as a cutting tool, making it excellent thermal, electrical,

acoustic, optical properties can be fully tapped. Currently, the diamond film has been applied in semiconductor electronic devices, optical acoustic devices, pressure

plus

Workers and cutting tools and other aspects of its development at an alarming rate in the high-tech sector more attractive.
Artificial way of non-diamond carbon structure into a diamond structure carbon, and by the formation of crystal nucleation and growth and polycrystalline diamond, or

the fine particles at high pressures and temperatures of diamond sintered polycrystalline diamond . It is currently in production on a high-pressure research has been

applied

An important example.
Since the 18th century confirmed the diamond is composed of pure carbon future, they began the study of synthetic diamond, but in the 1950s by high-pressure and high-

pressure research progress in experimental techniques, only a true success and rapid development. Currently synthetic diamond

Specific methods up to a dozen. According to the characteristics of the technology used can be summarized as static, dynamic pressure and low pressure three methods.

Characterized by the formation of diamond can be summarized as directly, melting and other categories of media and outreach methods.