After the end of World War II, the United States and Europe, all gold in the market was retracted to the US Treasury. There are no valuables similar to gold necklaces and gold rings at the wedding, and they always seem expensive and solemn. As a result, Daibers, a jewelry dealer who monopolized the world, saw business opportunities and successfully sold the diamond to the public with a phrase "A Diamond is Forever" as a slogan. "A Diamond Forever" was translated into "diamonds for a long time, a forever spread" in China. This advertising word like a curse captured thousands of girls, and now diamonds have become an inseparable part of marriage.
The formation of diamonds The formation of diamonds requires extremely harsh physical conditions, and can be used as jewelry, commonly known as diamond diamond stone. Studies have shown that the formation of diamond formation is 900 ~ 1300 ° C, and the pressure is 4 ~ 6GPa, which is about the depth of the earth 120 ~ 180km. After the depths of the underground, diamonds reached the surface through other geological activities such as volcanic eruption. This process requires a fast speed. Once the speed is not enough, diamonds may be converted into other carbon homogenic alien (such as graphite) during the process of reaching the surface, and even oxidize carbon dioxide at high temperature. In data from some high -voltage tests, the pressure is more important than temperature during the formation of diamond formation. If the pressure is stable and the temperature is reduced, diamond can still be stable. However, if the temperature is stable to reduce the pressure, diamonds will gradually lose transparency and eventually turn into graphite. Why have the diamond shining? In the first explanation of what is transparent. In narrow sense, from the perspective of people's eyes, visible light can pass through objects. As we all know, when the objects are alone, a series of interactions will occur with objects. These interactions include reflection, absorption, and passing. If most of the light is absorbed, the objects seen by the human eye are black; if part of the frequency of light is absorbed into reflex, the object seen by the human eye is the color of the reflected light; Only a small part is reflected, then the object is transparent. The transparency of diamonds is very high, that is, the absorption rate of light is very low. Theoretically, the diamonds that do not contain impurities and no defects in the structure have no absorption effect within the range of 200 ~ 4800nm. Diamond purity used on jewelry is generally high, and it is transparent from the naked eye. If natural diamonds are not undermed enough, it will cause micro -defects such as the internal and lines inside diamonds, which will cause the defects inside the diamond to effectively cause the diamond. origin. Impoos atoms can make small changes in the diamond structure, which can also cause diamonds with color. The "heart of the ocean", which is famous for the Titanic of the movie, is blue because it contains boron atomic impurities. If it is only transparent, the diamond will not be so shining. As we all know, the propagation rate of light in different media is different. This is the reason why light changes in the direction of the interface from one medium to another — that is, refracting -. For different frequencies, the propagation rate in different media is different. This makes different frequencies have different refractive independences. Using this feature, through a certain color dispersion system, compound color (such as white light) can be dispersed into monochrome light. The three prisms shown in the figure below are a good example of a scattered system. After white light passes through three prisms, it is decomposed into colorful light. The smart jewelry merchants used the refraction characteristics of diamonds to carry out a series of processing grinding diamonds, making diamond glorious and becoming a diamond on the ring. First of all, the high refractive index of diamond is used, and the refractive index of diamonds is 2.417 (589.3nm sodium light radiation detection). The light from the light medium to the light sparse media will reflect. From the figure below, we can see the wisdom of the jewelry dealer. Through smart cutting, the light that can be incorporated into the diamond reflects all. This is also the reason for the high requirements for diamond processing. Once the processing is not good, the impact on the luster of the diamond will be very great. Jewelry dealers also use the characteristics of strong diamond dispersion capabilities to make diamonds produce "Fire Flash". The color of the diamond is 0.044, ranking among the best of many materials. The so -called fire color is the seven -color glory of the diamond. Because of the scattered effect of the diamond, the white light will be dispersed by the diamond after entering the diamond, which will be reflected after the colorful light. The reflection mechanism can be represented by the following schematic diagram. This is why diamonds have a fire color. ? Is the diamond really circulating forever? Wang Wong Wang Tian Queen sang well: nothing will never be immortal. Diamonds are certainly not. Even if all the high -energy radiation and high temperature oxidation are artificially destroyed, the diamonds will be converted into another carbon monocular quality under normal temperature. In the junior high school chemical textbooks, when it is used for homogenic formal gobies, the brothers of a titter of diamonds are stable than diamond at normal temperature. They will turn into graphite. Why is this? To judge the stability of a material structure, it depends on whether the freedom of this structure is the lowest. What is freedom? My understanding is at a certain temperature and pressure. Under this structure, the material can be freely dominated by the energy. The higher the energy, the more the material wants to consume the energy, and the energy structure of the material will change after the energy consumption. Under a certain temperature and pressure, the material tends to be in the minimum structure of its freedom. If the structure of the carbon monouple and freedom can establish a relationship, the results obtained are shown in the figure below. In the figure, the horizontal axis represents the arrangement of carbon atoms, and the vertical axis is the freedom of the system. A represents graphite, B represents diamond, and the result is obtained under normal temperature and normal pressure. From the figure we can see that the structure of graphite and diamonds is a minimal value of the image, and the freedom of graphite can be lower, so graphite is more stable than diamond. However, because diamonds are in a very small value, the energy will rise if he changes the structure again, so diamond is also a stable structural form under normal temperature, which is called a sub -stable state structure. Although the diamonds will become graphite at normal temperature, the young bride does not have to worry about your diamond ring. Although this conversion can be carried out spontaneously, its rate is extremely slow. From the picture, we can see that the converted structure of the carbon mono is transformed from B to A, which needs to span a very high energy mountain peak, which makes it difficult to transform from diamond to graphite. Without hundreds of millions of years, the glittering stones on your ring will not become dark graphite. Life is only a century. From this perspective, diamonds can also be regarded as a forever. In the eyes of material scientists, diamonds are just a relatively pure carbon crystal, and there is not much special feature. Perhaps because of that advertisement, the Chinese girl's obsession with diamonds, especially high -priced diamonds, is extremely amazing. Of course, it contains a beautiful blessing that girls want to be as long as diamonds as diamonds. Girls don't have to worry about the price of diamonds like this. Either diamonds or weddings, but it's just a passing field. If you want to take his heart for a long time, it is king. If you can conquer the heart of a young man who is full of science and kindness, in my opinion, it is commendable than receiving multiple expensive diamonds. (Author: Dragon God Eight Son)
After the end of World War II, the United States and Europe, all gold in the market was retracted to the US Treasury. There are no valuables similar to gold necklaces and gold rings at the wedding, and they always seem expensive and solemn. As a result, Daibers, a jewelry dealer who monopolized the world, saw business opportunities and successfully sold the diamond to the public with a phrase "A Diamond is Forever" as a slogan. "A Diamond Forever" was translated into "diamonds for a long time, a forever spread" in China. This advertising word like a curse captured thousands of girls, and now diamonds have become an inseparable part of marriage.
The formation of diamonds
The formation of diamonds requires extremely harsh physical conditions, and can be used as jewelry, commonly known as diamond diamond stone. Studies have shown that the formation of diamond formation is 900 ~ 1300 ° C, and the pressure is 4 ~ 6GPa, which is about the depth of the earth 120 ~ 180km. After the depths of the underground, diamonds reached the surface through other geological activities such as volcanic eruption. This process requires a fast speed. Once the speed is not enough, diamonds may be converted into other carbon homogenic alien (such as graphite) during the process of reaching the surface, and even oxidize carbon dioxide at high temperature.
In data from some high -voltage tests, the pressure is more important than temperature during the formation of diamond formation. If the pressure is stable and the temperature is reduced, diamond can still be stable. However, if the temperature is stable to reduce the pressure, diamonds will gradually lose transparency and eventually turn into graphite.
Why have the diamond shining?
In the first explanation of what is transparent. In narrow sense, from the perspective of people's eyes, visible light can pass through objects. As we all know, when the objects are alone, a series of interactions will occur with objects. These interactions include reflection, absorption, and passing. If most of the light is absorbed, the objects seen by the human eye are black; if part of the frequency of light is absorbed into reflex, the object seen by the human eye is the color of the reflected light; Only a small part is reflected, then the object is transparent. The transparency of diamonds is very high, that is, the absorption rate of light is very low. Theoretically, the diamonds that do not contain impurities and no defects in the structure have no absorption effect within the range of 200 ~ 4800nm. Diamond purity used on jewelry is generally high, and it is transparent from the naked eye. If natural diamonds are not undermed enough, it will cause micro -defects such as the internal and lines inside diamonds, which will cause the defects inside the diamond to effectively cause the diamond. origin. Impoos atoms can make small changes in the diamond structure, which can also cause diamonds with color. The "heart of the ocean", which is famous for the Titanic of the movie, is blue because it contains boron atomic impurities.
If it is only transparent, the diamond will not be so shining. As we all know, the propagation rate of light in different media is different. This is the reason why light changes in the direction of the interface from one medium to another — that is, refracting -. For different frequencies, the propagation rate in different media is different. This makes different frequencies have different refractive independences. Using this feature, through a certain color dispersion system, compound color (such as white light) can be dispersed into monochrome light. The three prisms shown in the figure below are a good example of a scattered system. After white light passes through three prisms, it is decomposed into colorful light.
The smart jewelry merchants used the refraction characteristics of diamonds to carry out a series of processing grinding diamonds, making diamond glorious and becoming a diamond on the ring. First of all, the high refractive index of diamond is used, and the refractive index of diamonds is 2.417 (589.3nm sodium light radiation detection). The light from the light medium to the light sparse media will reflect. From the figure below, we can see the wisdom of the jewelry dealer. Through smart cutting, the light that can be incorporated into the diamond reflects all. This is also the reason for the high requirements for diamond processing. Once the processing is not good, the impact on the luster of the diamond will be very great.
Jewelry dealers also use the characteristics of strong diamond dispersion capabilities to make diamonds produce "Fire Flash". The color of the diamond is 0.044, ranking among the best of many materials. The so -called fire color is the seven -color glory of the diamond. Because of the scattered effect of the diamond, the white light will be dispersed by the diamond after entering the diamond, which will be reflected after the colorful light. The reflection mechanism can be represented by the following schematic diagram. This is why diamonds have a fire color.
? Is the diamond really circulating forever?
Wang Wong Wang Tian Queen sang well: nothing will never be immortal. Diamonds are certainly not. Even if all the high -energy radiation and high temperature oxidation are artificially destroyed, the diamonds will be converted into another carbon monocular quality under normal temperature. In the junior high school chemical textbooks, when it is used for homogenic formal gobies, the brothers of a titter of diamonds are stable than diamond at normal temperature. They will turn into graphite.
Why is this? To judge the stability of a material structure, it depends on whether the freedom of this structure is the lowest. What is freedom? My understanding is at a certain temperature and pressure. Under this structure, the material can be freely dominated by the energy. The higher the energy, the more the material wants to consume the energy, and the energy structure of the material will change after the energy consumption. Under a certain temperature and pressure, the material tends to be in the minimum structure of its freedom.
If the structure of the carbon monouple and freedom can establish a relationship, the results obtained are shown in the figure below. In the figure, the horizontal axis represents the arrangement of carbon atoms, and the vertical axis is the freedom of the system. A represents graphite, B represents diamond, and the result is obtained under normal temperature and normal pressure. From the figure we can see that the structure of graphite and diamonds is a minimal value of the image, and the freedom of graphite can be lower, so graphite is more stable than diamond. However, because diamonds are in a very small value, the energy will rise if he changes the structure again, so diamond is also a stable structural form under normal temperature, which is called a sub -stable state structure.
Although the diamonds will become graphite at normal temperature, the young bride does not have to worry about your diamond ring. Although this conversion can be carried out spontaneously, its rate is extremely slow. From the picture, we can see that the converted structure of the carbon mono is transformed from B to A, which needs to span a very high energy mountain peak, which makes it difficult to transform from diamond to graphite. Without hundreds of millions of years, the glittering stones on your ring will not become dark graphite. Life is only a century. From this perspective, diamonds can also be regarded as a forever.
In the eyes of material scientists, diamonds are just a relatively pure carbon crystal, and there is not much special feature. Perhaps because of that advertisement, the Chinese girl's obsession with diamonds, especially high -priced diamonds, is extremely amazing. Of course, it contains a beautiful blessing that girls want to be as long as diamonds as diamonds. Girls don't have to worry about the price of diamonds like this. Either diamonds or weddings, but it's just a passing field. If you want to take his heart for a long time, it is king. If you can conquer the heart of a young man who is full of science and kindness, in my opinion, it is commendable than receiving multiple expensive diamonds.
(Author: Dragon God Eight Son)