Aluminium & Magnesium Oxide / Spinell
1 Al2O3* 1 MgO or 3,5 Al2O3* 1 MgO
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Crystal properties |
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Crystal growth method |
CZ, Flame fusion (3,5 : 1) |
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Crystal growth orientation |
(100), (110), (111) |
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2 inch diameter |
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Variations |
Dopands on request |
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Crystallographic structure |
Cubic: a = 8.10 Å |
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Mineralogical |
Spinell |
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Twinning structure |
domaine structure |
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Colour |
Colourless |
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Density |
3.61 g/cm3 |
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Melting point |
1950 °C |
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Hardness |
8 (Mohs) |
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Dielectric constan |
8 - 9 |
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Dielectric loss tangent (10 GHz |
ca. 3.0 * 10_5 |
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Specific resistivity |
ca. 1014 W/ cm |
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Dielectric loss tangent (10GHz). |
3.0 * 10_5 |
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RT. |
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Dielectric constant |
1016 W/cm |
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RT |
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Transmission range |
0.2 to 6.0 mm |
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Refraction index |
nd = 1.727 |
at 500 nm |
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Dispersion |
0.012 |
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Standard orientations |
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Orientation: |
(001), (111), (110) |
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