Glass is an amorphous solid material, usually made of quartz sand, borax, limestone, feldspar and other raw materials through high temperature melting, molding, and cooling. Glass has excellent properties such as transparency, hardness, corrosion resistance, and easy molding, and is widely used in many fields such as architecture, optics, electronics, and biomedicine.
According to the different production processes and uses, glass can be divided into many types, such as flat glass, float glass, tempered glass, insulating glass, laminated glass, etc. In addition, according to the different internal structure of the glass, glass can also be divided into raw glass and cooked glass.
1. Chemical composition and physical properties of raw glass and cooked glass.
1.Chemical composition and physical properties of raw glass.
Raw glass refers to glass that has not been melted, and its internal structure is in an irregular and amorphous state. The chemical composition of raw glass mainly includes SiO2, CAO, Na2O, etc., of which SiO2 is the main component, accounting for about 70%-75% of the total mass. The physical properties of raw glass mainly include high hardness, high brittleness, and good wear resistance.
2.Chemical composition and physical properties of cooked glass.
Cooked glass refers to glass that has been melted and has a regular crystalline internal structure. The chemical composition of cooked glass is similar to that of raw glass, but the melting process will cause some components to change, such as CaO, Na2O and other components will be reduced or oxidized. The physical properties of cooked glass mainly include reduced hardness, reduced brittleness, reduced wear resistance, etc.
2. Analysis of the process of boiling raw glass with boiling water.
1.The process of boiling raw glass in boiling water.
Boiling raw glass in boiling water will cause the glass to expand when heated and the temperature will rise. As the temperature increases, the amorphous structure inside the raw glass changes, and some components may undergo oxidation or reduction reactions.
2.The effect of boiling raw glass.
The process of boiling raw glass may cause changes in the internal structure of the glass, but whether the raw glass can be turned into mature glass needs to be further analyzed. On the one hand, there are obvious differences between the properties of cooked glass and raw glass, such as the reduction of hardness and brittleness. On the other hand, the process of boiling raw glass in boiling water may not reach the desired melting temperature for cooked glass, resulting in the internal structure of the glass not being able to completely transform into a crystalline state.
From the above analysis, we can conclude that raw glass boiled in boiling water does not become mature glass. Although the process of boiling raw glass may cause changes in the internal structure of the glass, it does not completely transform it into the crystalline structure that cooked glass has. Therefore, when using raw glass, it is still necessary to make reasonable selection and application according to its physical properties.
In practice, understanding the properties of raw and cooked glass helps us to better select and use glass materials. For example, in occasions that require higher hardness and wear resistance, such as window glass, tableware, etc., raw glass is a better choice; And in situations that require lower hardness and brittleness, such as glass crafts, decorations, etc., cooked glass may be a better choice. In short, the rational choice and use of glass materials can make our lives better.
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