Titanium dioxide ( TiO2 )
RUTILE ATR PRISMS |
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Crystal properties |
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Crystal growth method |
Flame fusion method |
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Crystal growth orientation |
(001), (110) |
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Maximum size |
Up to Æ 1.5 inch * 2 inch length |
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Variations |
Doped crystals (Fe, Nb, W, Ta, V) |
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Crystallographic properties |
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Crystallographic structure |
Tetragonal |
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Twinning structure |
Type a) Optical grade, grain boundaryfree |
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Colour |
Slight Yellow, transparent |
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Physical properties |
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Density |
4.26 g/m3 |
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Melting point |
1825 °C |
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Hardness |
6.5 - 7 (Mohs) |
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Thermal expansion coefficient |
9.943 * 10-6 K-1 |
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Physical properties cont. |
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Dielectric constant |
190 |
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Dielectric loss tangent |
17 * 10-3 |
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Specific resistivity |
> 1013 W/cm |
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Optical properties |
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Transmission range |
0.42 to 6.0 µm |
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Refraction index |
nd = 2.613 |
ordinary ray |
nd = 2.909 |
extraordinary ray |
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(nf - nc) = 0.164 |
ordinary ray |
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(nf - nc) = 0.207 |
extraordinary ray |
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Birefringence |
(nc - no) = 0.296 |
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X-ray properties |
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Orientation |
(100), (110), (001) |