Silicon Metal For High Temperature Ceramic Materials
Silicon metal is a kind of metal material with high melting point, high hardness and high corrosion resistance, so it is often used in the manufacture of high temperature ceramic materials. High te...
DESCRIPTION
Silicon metal is a kind of metal material with high melting point, high hardness and high corrosion resistance, so it is often used in the manufacture of high temperature ceramic materials. High temperature ceramic materials refer to ceramic materials that can maintain stability and strength in high temperature environment, and are usually used in aerospace, high-speed trains, petrochemical and other fields.
The main component of silicon metal is silicon, which is a chemically very stable element with high melting point, high hardness and high corrosion resistance. The melting point of silicon metal is very high, reaching 1414℃, and the thermal expansion coefficient of silicon is very small, and the thermal stability is good. At the same time, the hardness of silicon metal is also very high, belonging to the larger hardness of the metal, its Mohs hardness is about 7-8, higher than the hardness of steel. In addition, silicon metal also has excellent corrosion resistance, can withstand strong acid, alkali and other corrosive environment. Therefore, silicon metal can be used as one of the basic materials of high temperature ceramic materials to meet its application requirements in extreme environments such as high temperature, high pressure and high speed.
High temperature ceramic materials have good stability and strength in high temperature environment, so they are widely used in aerospace, high-speed train, petrochemical and other fields. The application environments in these fields are often extreme, requiring materials with high strength, high rigidity, high wear resistance, high corrosion resistance, high temperature stability and thermal shock stability. Traditional metal materials are often unable to meet these requirements, while high temperature ceramic materials can meet these requirements. Therefore, the manufacture of high temperature ceramic materials has become a research hotspot in many fields.
| Grade | Chemical Composition % | |||
| Si Content(%) | Impurities(%) | |||
| Fe | Al | Ca | ||
| 2202 | 99.58 | 0.2 | 0.2 | 0.02 |
| 3303 | 99.37 | 0.3 | 0.3 | 0.03 |
| 411 | 99.4 | 0.4 | 0.4 | 0.1 |
| 421 | 99.3 | 0.4 | 0.2 | 0.1 |
| 441 | 99.1 | 0.4 | 0.4 | 0.1 |
| 551 | 98.9 | 0.5 | 0.5 | 0.1 |
| 553 | 98.7 | 0.5 | 0.5 | 0.3 |
| Other chemical composition and size can be supplied upon request. | ||||
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