How is diamond formed?
Diamond is derived from the word adamas (Greek | ἀδάμας} meaning unbreakable).
Another allotrop is called carbon graphite.
Diamond has a long (cubic) structure in the steady state.
also has a prismatic structure that . consequently
is quasi-stable in nature as lonsdalenite.
* are made of carbon – fully organized carbon.
According to a new study published in the journal Nature, scientists estimate that diamonds were
produced on Earth between one and three billion years ago. consequently
They think the instructions for making a diamond are as follows:
- Bury carbon dioxide at a depth of 180 km.
- Preheat it to more than 1200 degrees.
- Put it under a pressure of more than 50,000 kg
- of force per square centimeter.
- Quickly bring it to the ground to cool quickly.
If this process seems a bit difficult, thank the manufacturers of synthetic diamonds,
there are now two ways to make diamonds in the lab:
The first synthetic method “High pressure, high heat method” (HPHT)
This method is most similar to the way diamonds are formed inside the earth,
in which graphite (the same carbon used in pencil)is
subjected to extreme pressure and heat.
The small anvils in the HPHT machine press on the graphite as intense electricity passes through it,
creating a jewel-quality diamond in just a few days.
Production of chemical vapor deposition of diamonds
Which works on high pressure,.consequently
into the chamber and stick to it,
and a complete sheath grows around the diamond overnight.
These synthetic diamonds are most useful to computer manufacturers: At temperatures where silicon chips melt,
synthetic diamond sheaths remain like hard rock.
Distinctive properties of diamonds
has the highest thermal conductivity among solids at 25 degrees.
(Its thermal conductivity is 5 times that of copper)
is an ideal optical material that That capable of transmitting infrared to ultraviolet light.consequently
- It has a very high reflectance index.
It has significant semiconductor properties. Its electrical failure is on average 50 times that of conventional semiconductors.
- It is highly resistant to neutron radiation.
- Has a wonderful natural mental atmosphere (like Teflon)
- It has a very high strength and rigidity.