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BETA-SIC whisker, beta silicon carbide whisker, silicon carbide(beta） whisker |
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| Product name : BETA-SIC whisker, beta silicon carbide whisker, silicon carbide(beta） whisker |
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| Details : |
BETA-SIC whisker
Performance
·Excellent corrosion resistance
·High hardness
·Chemical and thermal stability
·High temperature conductivity
·Excellent mechanical strength at the room and evaluated temperature
Properties of β-SiC
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Properties
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Physical constant
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Properties
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physical constant
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Melting Point，K
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2973℃(decomposition)
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Evaporation Activation Energy，KJ/mol
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244.5
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Molar Heat，J/(mol.k)
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24.7(276K)
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Heat of Formation，KJ/mol
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111.8
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Thermal Expansion Coefficient (TEC)(373K)
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6.58×10-6
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Thermal Expansion Coefficient (TEC)(1173K)
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2.98×10-6
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Thermal Conductivity，J/(cm.s.k)
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0.063-0.096
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Heat of Combustion，KJ/mol
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30.343
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Density g/cm3
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3.216
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Hardness
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(Mohs)
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9.5-9.75
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Crystal Structure
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Cubic (3 C)
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(Vickers)
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2.500－2.900
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Decomposition Temperature (o C )
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2830±40
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Magnetic Susceptibility (g/cm3)
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-12.8×10-6
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Compressibility
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0.21×10-6
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BETA-SIC whisker Product specifications
| ·Physical Characteristics |
| Item |
Data |
| β-SiC |
≥98.00% |
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≤0.06% |
| C free |
≤0.04% |
| Whisker diameter |
0.1-1.0um |
| Whisker length |
10-100um |
| Whisker shape |
Slippery and straight whisker |
| Whisker aspect ratio |
>10 |
| ·Chemical Chatacteristics |
| Element |
Conten(%) |
| C |
29.74 |
| S |
0.16 |
| P |
0.005 |
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Refractory (Ta, Nb, W, Mo)
