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AboutFounded in September 2019, the company is located in East Industrial Park, Yuzhou Industrial Cluster Area. Its business scope: jewelry manufacturing; Jewelry wholesale; Nonferrous metal alloy manufacturing;......
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NewsPay attention to Jiarefu corporate information, quickly disseminate industry dynamics, stimulate the positive energy to promote the development of the group.
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ProductIn the cultivation of diamonds in this subdivision of the industry, our company has excellent technology, and 70% of the metal catalysts used in the cultivation of diamond industry are supplied by our ......
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Service & CustomizationCustomize your own diamond, listen to the customer's individual customization needs, and choose the right ring for them.
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ContactWe will provide perfect after-sales service, if you want to contact us or have questions about the product, please call us or leave a message online, we will give you a satisfactory ......
11
2023
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05
Formation and Characteristics of diamond (2)
keyword：JIARUIFU
Source：
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Scratch any two different minerals against each other, and one of them is bound to be damaged. There is a mineral that can scratch all other minerals, but no mineral can scratch it, this is diamond.
Scratch any two different minerals against each other, and one of them is bound to be damaged. There is a mineral that can scratch all other minerals, but no mineral can scratch it, this is diamond.
It was not until the second half of the 18th century that scientists understood the "material" that made up diamond. As mentioned earlier, there were references to diamond as early as the 1st century AD, however, the composition of diamond was not known for more than 1,600 years.
It was not until the 70s to 90s of the 18th century that the French chemist Lavoisier (1743-1794) and others conducted experiments to burn diamond in oxygen, and found that the obtained carbon dioxide gas, that is, a substance combined by oxygen and carbon. The carbon here comes from diamonds. Finally, these experiments proved that the material of diamond is carbon.
Knowing that diamond is composed of carbon still does not explain why diamond has such a large hardness. For example, pencil leads are made of graphite, which is also made of carbon, but graphite is a mineral softer than a human fingernail. Why are two minerals, diamond and graphite, so different?
This question was only answered in 1913 by the British physicist William Bragg and his son. The Braggs used X-rays to look at the diamond and study the arrangement of atoms within the crystal. They found that inside the diamond crystal, each carbon atom is tightly bound to the four surrounding carbon atoms, forming a dense three-dimensional structure. This is a special structure that has not been seen in any other mineral. Moreover, this dense structure makes the density of diamond about 3.5 grams per cubic centimeter, about 1.5 times the density of graphite. It is this dense structure that makes diamond have greater hardness. In other words, diamond is a mineral formed when carbon atoms are squeezed.
Formation and Characteristics of diamond (2)