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Description
Silicon Carbide (SiC) Micron Powder, Beta, Purity: 99.5+%, Size: <1 µm, Whisker
Product Description:
Silicon Carbide (SiC) Micron Powder in whisker form offers a high-purity, beta-phase microstructure with ultrafine particle size (<1 µm) and a high aspect ratio (length-to-diameter ≥20). This product is engineered for applications that demand exceptional hardness, thermal stability, and mechanical reinforcement at elevated temperatures. Its whisker morphology enables superior load transfer in composite systems, while its fine grain size contributes to high surface area and reactivity.
Applications:
Beta-phase SiC whiskers are widely used in advanced ceramics, where they reinforce materials such as ceramic bearings, textile ceramics, high-frequency components, and ceramic engine parts. Their extreme hardness and high-temperature resistance make them ideal for polishing abrasives, grinding wheels, and hard disk substrates. Due to their high thermal conductivity, SiC whiskers are also used in thermal management systems, including high-temperature sealing valves, spray nozzles, and fluid transport components. In composite materials, they enhance tensile strength, fracture toughness, and heat resistance, making them valuable in structural applications across aerospace, electronics, and defense sectors.
Technical Properties:
| Property | Value |
|---|---|
| Purity | 99.5+% |
| Crystal Type | Beta (β) |
| Particle Size (Diameter) | <1 µm |
| Length-to-Diameter Ratio | ≥20 |
| Density | 3.22 g/cm³ |
| Decomposition Temperature | 2973 K |
| Mohs Hardness | 9.5 |
| Thermal Expansion Coefficient (373 K) | 6.7 × 10⁻⁶ |
| Thermal Expansion Coefficient (1173 K) | 3.0 × 10⁻⁶ |
| Heating Power | 30.34 KJ/mol |
| Compressibility Coefficient | 0.2 × 10⁻⁶ |
Elemental Analysis (%):
| Component | Free C | SiO | Fe | Ni | Ca |
|---|---|---|---|---|---|
| Value | 0.04 | 0.10 | 0.065 | 0.13 | 0.50 |
Storage Conditions:
Silicon Carbide micron whiskers should be stored in a sealed vacuum container in a cool, dry environment. Avoid exposure to air and mechanical stress to maintain structural integrity.
Key Features:
-
Ultrafine whisker morphology with high aspect ratio
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Superior hardness and fracture toughness
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High thermal conductivity and chemical inertness
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Ideal reinforcement for ceramic and metal composites
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Suitable for extreme environments and precision components
Additional information
| Gram | 25 g, 100 g, 500 g, 1000 g |
|---|