| KCl晶體 |
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| OPTICAL |
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Transmission Range |
0.21 to 20 microns |
| |
Refractive Index |
1.45644 at 10 microns |
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Reflection Loss |
6.8% at 10 µm (2 surfaces) |
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Index of Absorption |
1.22 x 10-3 cm-1 at 2.7µm |
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Restrahlen Peak |
63.1 microns |
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dN/dT |
-33.2 x 10-6/°C |
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| PHYSICAL |
|
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Density |
1.99 g/cm3 |
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Melting Point |
776°C |
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Thermal Conductivity |
6.53Wm-1K-1 at 322K |
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Thermal Expansion |
36 x 10-6/K at 300K |
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Hardness |
Knoop 7.2 <110>, 9.3 <100> with 200g |
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Specific Heat Capacity |
690 J kg-1K-1 |
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Dielectric Constant |
4.64 at 1MHz at 300K |
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Young's Modulus (E) |
29.67 GPa |
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Shear Modulus (G) |
6.24 GPa |
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Bulk Modulus (K) |
17.36 GPa |
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Elastic Coefficients |
C11 = 39.8 C12 = 6.2 C44 = 6.25 |
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Apparent Elastic Limit |
2.3 MPa (330psi) |
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Poisson Ratio |
0.216 |
| CHEMICAL |
|
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Solubility |
34.7g/100g water |
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Molecular Weight |
74.55 |
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Class/Structure |
Cubic FCC, NaCl, Fm3m, (100) cleavage | | |
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