Views: 259 Author: Site Editor Publish Time: 2022-07-20 Origin: Site
The manufacturing process of graphite to diamond, a piece of bullet can be crystallized ten times under the pressure of about 560,000 times the sea level, more than 150 kilometers below the surface of the earth, to become diamond. With the change of time, about 3 billion years, diamonds will be ejected from the surface with the volcanic magma, these are natural diamonds.
With modern manufacturing processes, man-made diamonds take only four days to form and have consistent physical, chemical, and optical properties. First, the graphite blocks are The graphite block is first shaken and ground to a fine powder, then a few tiny diamond crystals are added, stirred and placed in a special mold to form a graphite core under high pressure, and then placed in a ceramic core. The next step is the regrowth of carbon atoms. In the large growth chamber, 14 heavy metal pieces called molds are placed around the diamond and the core to form a sphere. A spherical star is formed around the diamond and heart to simulate the cold 150 km below the earth's surface.
The growth chamber was then pressurized to 850,000 pounds per square and the temperature was raised to 2,700 degrees Fahrenheit, nearly the melting point of steel. We know that diamonds and stone Ink is also a kind of carbon, only the molecular structure of the difference. The carbon atoms in the beginning are loosely connected to each other, while the carbon atoms in diamonds are tightly connected to each other. In the growth chamber Under the high pressure and temperature in the growth chamber, the graphite in the heart decomposes into carbon atoms, and the carbon atoms are attracted to the diamond crystals and attached to them, which have been used as molecular template. Then they start to arrange themselves into a tightly spaced and uniform diamond structure.
After the 14th day of high temperature and pressure, some of the graphite in the heart transformed into the core obtained from diamond manufacturing, it also needs to be put into the acid solution to burn off the excess graphite, and then after cleaning agent to remove the residue, a new The rough diamond is born. Finally, the diamond is polished by the process and a high value and beautiful diamond is created.
The growth chamber is then pressurized to 850,000 pounds per square and the temperature is raised to 2,700 degrees Fahrenheit, nearly the melting point of steel. We know that diamonds and stone We know that diamond and graphite are also a kind of carbon, but the molecular structure is different. The carbon atoms in the beginning are loosely connected to each other, while the carbon atoms in diamonds are tightly connected to each other.
In the growth chamber Under the high pressure and temperature in the growth chamber, the graphite in the heart decomposes into carbon atoms, and the carbon atoms are attracted to the diamond crystals and attached to them, which have been used as molecular template. Then they start to arrange themselves into a tightly spaced and uniform diamond structure. After the 14th day of high temperature and pressure, some of the graphite in the heart transformed into the core obtained from diamond manufacturing, it also needs to be put into the acid solution to burn off the excess graphite, and then after cleaning agent to remove the residue, a new The rough diamond is born. Finally, the diamond is polished and a valuable and beautiful diamond is created.
As a monolithic form of the chemical element gold, gold has always been a precious metal with a beautiful color and stable chemical properties. It has a golden yellow appearance The soft texture of gold makes it very suitable for processing, but at the same time, it is also easy to make the decorations scratch and scrape, thus losing some of the ornamental properties. Therefore, the processing process of gold ornaments is tedious, to enhance its hardness without affecting the aesthetics, copper and silver are generally used to solve the problem. The problem is solved by the use of two metal elements: copper and silver.
Why is it that diamonds can be mass-produced through artificial technology, but synthetic gold technology is slow to mature?
First of all, we need to know the difference between diamonds and gold itself, diamonds are made of diamond, the main component is carbon, carbon is not uncommon on our planet. As mentioned earlier, gold is a monolithic form of the element gold, which is very rare and small in number. Its composition of different forms of material is also very rare.
Secondly, from the formation process, diamonds only need to reach a certain high temperature and pressure, and then the diamond can be refined to get, our human technology Our human technology is sufficient to meet all the conditions of diamond formation, while gold is completely different.
Gold is not a product of The Earth
Gold is not a native element of the earth, but comes from outer space, and its formation is mainly attributed to the explosion of supernovae and neutron star mergers, two The formation of gold is mainly attributed to two rare astronomical phenomena in the universe: supernova explosion and neutron star merger. Supernova explosion and two neutron star mergers produce energy to promote the nucleus of iron atoms continued nuclear fusion, the element gold will be will be produced with a certain probability.
Although gold cannot be produced like the celestial movement, but clever human beings, there are still other ways, as far as the current human knowledge about the atom and the field of nuclear fusion and
In terms of the current knowledge and technology in the field of atomic and nuclear fusion, it is still possible to synthesize gold artificially. Theoretically speaking, you don't really need to realize what atomic fusion and so on in order to form gold elements, we can make the number of protons of a certain atomic nucleus become We can make the number of protons of a nucleus equal to the number of protons of gold atoms on the line.
Because everything in this world is made of atoms, the essential difference between different elements is the number of different protons in the nucleus, and the elements are the same number of protons of a class of atoms in general, this is a major basic concept about the elements.
In this way, we can make two atoms with less than gold atoms fuse, or split an atom with more than gold atoms, in fact, the principle is the same as nuclear fusion nuclear fission, to achieve these two processes will use particle gas pedals and particle colliders.
It is said that in the 1980s, the United States Lawrence experiment physicists have successfully obtained the gold atom by hitting the proton in the nucleus of the bismuth atom, mainly by using the collider to increase the speed of alpha particles to the speed of light, and then bombardment, sounds simple, but the process is very complex, the required experimental values and measurement calculations are extremely large, but it is also a rare successful realization The process of synthesizing gold artificially is a rare example of success.
Synthetic gold is not realistic
If you can get gold, which is a coveted treasure, through artificial technology, why is no one willing to use this technology to get gold?
First of all, the technology of synthetic gold is not yet mature, the probability of success is small, in fact, for so many years there are people have tried to use such technology to synthesize gold, but most of them ended in failure, the use of particle colliders is too large random, not always get the desired results.
Secondly, the cost of using colliders and accelerators is too high, and accelerator manufacturing theoretically need to spend a gram of gold than the formation of nuclear fusion gold elements for a longer period of time, artificial synthesis of gold needs to spend far more human and material resources than the value of gold itself, is simply a waste of money to do, of course, no one is willing to do.