Mikro-Siliciumnitrid (β-Si3N4) Powder Description
Mikro-Siliciumnitrid (β-Si3N4) (CAS: 12033-89-5) is a dense ceramic material with high strength and high toughness. It was developed by scientists in the 1970s. It is employed in various industrial applications such as engine components, bearings and cutting tools. It exhibits improved high-temperature behaviour compared with most metals. Its strength remains stable, and it resists creep and oxidation. Its low thermal expansion coefficient enables it to withstand temperature cycles better than most other ceramic materials.
Mikro-Siliciumnitrid (β-Si3N4) Powder Properties
Alpha (α-Si3N4) and Beta (β-Si3N4) refer to two different crystal structures of silicon nitride.
β-Si3N4 is employed in applications involving high temperatures and loads due to its enhanced mechanical properties.
1. Cubic crystal structure: β-Si3N4 has a cubic crystal structure. Consequently, its properties are isotropic. This means that its properties are consistent in all directions.
2. Enhanced temperature stability: This form of silicon nitride remains stable at temperatures typically above 1 200°C.
3. Excellent mechanical properties: β-Si3N4 exhibits high hardness, strength and toughness. These attributes are quantified in various studies.
Mikro-Siliciumnitrid (β-Si3N4) Powder Specifications
CAS Number
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12033-89-5
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Chemical Formula
|
Si3N4
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Molecular Weight
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140.2833
|
Form
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grey powder
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Specific Surface Area (m²/g)
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49
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Bulk Density (g/cm³)
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1.24
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Bulk Density (g/cm³)
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3.39
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Morphology
|
β-Phase
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Mikro-Siliciumnitrid (β-Si3N4) Powder Applications
1. Cutting Tools: β-Si3N4 is used in the manufacture of cutting tools for metal processing and grinding applications. The material withstands high loads.
2. Ceramic Bearings: It is employed in ceramic bearings because of its light weight, high hardness and chemical stability. This is beneficial in high-speed and high-temperature environments.
3. High-Temperature Furnace Components: β-Si3N4 is used in producing furnace components such as pipes, crucibles and heating elements. It resists thermal shock and chemical corrosion.
4. Medical Devices: The material is used in the manufacture of components for medical devices such as surgical blades and implants. Its biocompatibility and corrosion resistance are quantifiable in performance tests.
Mikro-Siliciumnitrid (β-Si3N4) Powder Packaging
Our Mikro-Siliciumnitrid (β-Si3N4) is handled with care during storage and transport. This is done to maintain the product’s quality in its original state.