APPLICATIONS: Spectroscopic components extending into the IR slightly further than CaF2. High density scintillator material with fast timing application.
Optical Properties
Transmission Range | 0.15 to 12.5 microns |
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Refractive Index | 1.4626 at 2.6 microns |
Reflection Loss | 6.8% at 2.6 microns(2 surfaces) |
Restrahelen Peak | 47 microns |
dN/dT | -15.2 x 10-6/°C |
Physical Properties
Density | 4.89gm/cc |
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Melting Point | 1280°C |
Thermal Conductivity | 11.7 2 Wm-1° K -1 at 13°C |
Thermal Expansion | 18.1 x 1 0-6/°C at -100 to +120°C |
Hardness | Knoop 82 with 500gm indenter |
Specific Heat Capacity | 410KJgm-l ° K -1 at 27°C |
Dielectric Constant | 7.33 at 2MHz |
Young's Modulus (E) | 53.07 Gpa |
Shear Modulus (G) | 25.4 Gpa |
Bulk Modulus (K) | 56.4 Qpa |
Elastic Coeffcients | Cl1=89.2 C12=40.0 C44=25.4 |
Apparent Elastic Limit | 26.89 Mpa |
Poisson Ratio | 0.343 |
Chemical Properties
Solubility | 0.17 gm/100 gm water at 23°C |
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Molecular Weight | 175.36 |
Class/Structure | Cubic CaF2 (1 1 1) cleavage |
Index of Refraction
0.2652 microns | 1.51217 |
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0.3130 microns | 1.49782 |
1.01398 microns | 1.46847 |
1.681 microns | 1.46561 |
1.97009 microns | 1.46472 |
2.5766 microns | 1.46262 |
3.422 microns | 1.45940 |
5.549 microns | l.44732 |
7.0442 microns | l.43529 |
10.346 microns | 1.39636 |