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| BARIUM FLUORIDE CRYSTALS [ BaF2 ] |
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BaF2 is relatively hard but is highly sensitive to thermal shock. For its transmission range is 0.2 μm - 11 μm, the material is used for optical windows, lenses and prisms in UV-IR. Besides it can also be used as substrate for some applications. BaF2 is less resistant to attack by water than CaF2. Pronounced water attack occurs at 500°C, but in a dry environment the material can be used to 800°C. BaF2 is grown by modified Bridgman technique. Maximum available size: Dia 200 mm x Thickness 50mm. In addition, BaF2 is usually used as scintillator for gamma detection. It is the fastest scintillating crystals up to now. |
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| Specification |
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 Maximum Size |
Single Crystal: Φ100 × 100 mm
Poly Crystal: Φ200 × 100 mm [ 3 ~7 boundaries ] |
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| Dimension Tolerance |
± 0.1mm |
| Flatness Tolerance |
λ ~ λ /10 at 632.8 nm over central 90% of edge dimensional |
| Parallelism |
±1 arc sec ~ ±3 arc min |
| Cosmetic Surface Quality |
10 / 5 |
| Specific Heat Capacity |
410 J/ [ kg K ] 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 GPa |
| Elastic Coefficients |
C11=89.2MPa C12=40.0Mpa C44=25.4MPa |
| Apparent Elastic Limit |
26.89 MPa |
| Poisson Ratio |
0.343 |
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| Note: |
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| 1. |
More question and require please contact to our sales engineer. |
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| 2. |
Explain for crystal specification please click: |
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| 3. |
Download this crystal products catalogue please click: |
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