Strontium Titanate (SrTiO3)
Strontium Titanat - Crystal properties | ||
Crystal growth method | Flame fusion method | |
Crystal growth orientation | (100) | |
Maximum size | Up to 2 inch * 4 inch length (conical) | |
Variations | Bicrystals, (100) 24 / 36 ° This crystals are fused Other orientations on request |
Doped crystals (Fe, Nb, FeNb, W, Ta, V) Other dopands on request |
Strontium Titanat - Crystallographic properties | ||
Crystallographic structure | Cubic a = 3.905 Å | |
Twinning structure | Twinfree | |
Colour | Colourless to light yellow | |
Strontium Titanat - Physical properties | ||
Density | 5.12 g/cm3 | |
Melting point | 2080 °C | |
Hardness | 6 - 6.5 (Mohs) | |
Thermal expansion coefficient | 9 * 10-6 K-1 | |
Thermal conductivity | 120 milliwatts/cm °C at 100 °C | |
Dielectric constant | 300 | |
Dielectric loss tangent (10GRz) | 2 * 10-2 | |
Electrical character | Paraelectric above 45°K Ferroelectric below 45°K | |
Specific resistivity | > 107 Ohm/cm | |
Strontium Titanat - Optical properties | ||
Transmission range | 0.395 to 6 µm | |
Refraction index | nc = 2.380 nd = 2.409 nf = 2.488 |
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Dispersion | (nf - nc) = 0.108 | |
X-ray properties | ||
Bild | ||
Orientation (100), (110), (111), (305) Other orientations on request Off orientation 2, 3, 5,10 and 15° Edge orientation is available Others on request (100) +/- 0.1° with/without TiO2 termination |
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Strontium Titanate lattice | Strontium Titanate SrTiO3-Mo-Fe | Strontium Titanate SrTiO3-Ta |
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