The relationship between artificial diamond and graphite

Chemical composition of graphite and synthetic diamond are carbon. Different is that one is a flat network structure, a three-dimensional structure of space. Graphite Diamond

has a "twin brother" called graphene. Compared to hard wear-resistant diamond, graphite is very very soft texture. Since diamond hard

Degree and nature of the graphite both have such a big difference, why put Talia called "twin brother" mean? Chemist to tell you: the chemical composition of diamond

and graphite are identical, except that they are not the same crystal structure. We have just seen the diamond

Structure, the structure of graphite on the map is. polycrystalline diamond is very different than the right? Flaky graphite crystals, which was dark gray, opaque and metallic luster.

Good conductivity, temperature, thermal conductivity is also very good. Graphite soft. It can be used to make brushes electrode

, Dry battery carbon rod, used in manufacturing metal smelting and brick graphite crucible, graphite powder can be used for high temperature operation of the machine

lubricant, can be made pencil. Seen in the crystal world of the "twin brothers" have their own skills, they all have their

Useless.
Graphite and diamond hardness vary so much, but people still want to be able to get the diamond synthetic method, because the nature of graphite (carbon) reserves are

very rich. However, to make into a diamond carbon in graphite are arranged as carbon, is not so easy

The. Graphite 5-6 million atmospheres ((5-6) × 103MPa) and 1000 to 2000 ° C temperatures, then the metallic iron, cobalt, nickel and the like as catalyst, can

graphite into diamond.