Is the glass solid or liquid?
[China Glass Net] Is the glass solid or liquid? When you see the title, you may be sure that it is solid, of course, but strictly speaking, glass is not solid. It is a semi-solid half with a very slow flow rate. The state of the fluid. The windows of many old churches in the West that have been used for more than a century are thin and thick. That is to say, when a flat glass is vertically placed for a hundred years, it will become thinner and thicker. It exhibits a liquid nature, which is similar to the case where the soap film is thin and thick due to gravity. In fact, many popular science books and TV science videos have talked about this popular science knowledge, nothing new. Glass is not completely solid Glass is neither crystalline nor amorphous, nor polycrystalline, nor mixed. The theoretical name is glass. The characteristics of the glassy state at room temperature are: short-range order, that is, in the range of several or tens of atoms, the atoms are arranged in order and exhibit crystal characteristics. Long-range disorder, that is, after increasing the number of atoms, it becomes a disordered arrangement state, which is similar to liquid. At the macro level, glass is a solid substance. Glass is such a substance. The reason for this structure of glass is that the viscosity of the glass changes too rapidly with temperature, and the crystallization rate is too slow. When the temperature drops and the crystallization begins, the viscosity has become very large and the movement of the atoms is limited, resulting in this result. Therefore, the glass state is similar to a solid liquid, and the atoms in the material are always in the process of crystallization. Therefore, the position of the atoms in the glass seems to be fixed, but there is still a force between the atoms to make it have a tendency to rearrange. It is not a stable state, which is different from the atomic state in paraffin. Therefore, it is also not a crystal. At normal temperature, paraffin is completely solid, and glass can be regarded as a liquid with a very high viscosity. Reveal the mystery of glass non-solid In the experiment, in order to observe the real motion of microscopic atoms, the researchers used larger colloidal particles to simulate the atoms and observed them with a high power microscope. It was found that the gels formed by these particles could not form crystals because they formed an icosahedral structure—consistent with the predictions made by Charles Frank of the University of Bristol in the 1950s. This structure explains why glass is "glass" rather than liquid or solid. This study is a major breakthrough in understanding metastable materials, which will make it possible to further develop new materials such as metallic glass. In addition, if the metal can be formed into a glass-like internal structure upon cooling, it is possible to greatly reduce metal defects. Some materials form crystals upon cooling, and their atoms are arranged in a highly regular pattern called a "lattice." However, when the glass is cooled, the atoms are congested together and arranged almost randomly, which hinders the formation of a regular lattice. Sports medals produced by us are made out of a metal alloy combining zinc and aluminium. As a standard we produce 3 mm thick medals, however we can produce thicker, 6 mm ones, on client`s demand. Football Medal,Basketball Medal,Sports Medal,Medals Custom Medal Shenzhen MingFengXing Art & Craft Products CO., LTD. , https://www.blankmedal.com
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