YAG (Yttrium Aluminium Garnet) (Y3Al2Al3O12)
| Properties (Y3Al5O12) | |
| Transmission Range | 0.21 ... 5.3 µm |
| Refractive Index | 1.8245 @0.8 µm, 1.81523 @1.06 µm, 1.8121 @1.4 µm |
| Reflective Loss | 16.6% @1.4 µm |
| Density | 4.56 g/cm3 |
| Melting Point | 1940°C |
| Molecular Weight | 593.618 |
| Thermal_Conductivity | 14.0 W/(m·K), 13.0 W/(m·K) |
| Specific Heat | 590 J/(kg·K) |
| Thermal Expansion | 7.8 · 10-6 /K (111), 7.7 · 10-6 /K (110), 8.2 ·10-6 /K (100) |
| Hardness (Mohs) | 1215 (8.5 Mohs) |
| Young`s Modulus | 300 GPa |
| Shear Modulus | |
| Bulk Modulus | |
| Rupture Modulus | 280 MPa |
| Elastic Coefficients | C11 = 333; C12 = 111; C44 = 115 GPa |
| Dielectric Constant | 11.7 |
| Solubility in Water | none |
| Type of Material | single crystal, synthetic |
| Crystal Structure | cubic: m3m |
| Lattice Parameters | a = 12.004 Å |
| Application | active laser crystals (dopants: Nd, Tm, Ho, Er, Cr), spectroscopy, vacuum windows |
| Orientation Crystal orientation is the classification of the inclination of the crystal surface in relation to its crystal lattice. Crystal orientation is usually denoted by the Miller indices, e.g. (111) or (110) (and directions parallel or perpendicular to it). The Miller index can only be used for single crystals, i.e. not just a solid but a homogenous uniformly oriented solid. Orientated crystals are used in the semiconductor industry or in fundamental physics. Specific crystal orientation can be achieved by cleavage (see material properties) or by directional cutting. | 111, 100 |
| Standard diameter | 100 mm |
| Remarks | no double refraction therefore suitable as a substitute for sapphire in optical systems and also application as sturdy material for windows |
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This symbol denotes crystal grown in-house.