YAG
Yttrium-Aluminum Garnet (YAG) is isotropic crystal with cubic symmetry. It has excellent optical and thermodynamic properties. Its mechanical properties and chemical stability are close to those of sapphire crystals without the birefringence effect of sapphire. Pure YAG crystals have higher transmittance in the 0.25~5um region, and no absorption at 2-3μm , while glass has strong H2O absorption band. Therefore, undoped pure YAG crystal is a new type of substrate and window material for ultraviolet and infrared optical equipment. At the same time, the excellent physical and chemical properties and optical properties of YAG crystal make it an important optical application in high-temperature and high-energy physical environments.
CasCrysTech (CCT) provides high quality lithium Yttrium-Aluminum Garnet (YAG) crystal to the clients.
Uses/Applications
Undoped pure YAG crystal is a new type of substrate and window material for ultraviolet and infrared optical equipment.
YAG crystal has an important optical application in high-temperature and high-energy physical environments.
Features/Benefits
It has excellent optical and thermodynamic properties. Its mechanical properties and chemical stability are close to those of sapphire crystals without the birefringence effect of sapphire. Pure YAG crystals have higher transmittance in the 0.25~5um region, and no absorption at 2-3μm , while glass has strong H2O absorption band.
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Crystal Structure
Cubic
Lattice Constant
12.01Å
Melting Point
1970℃
Mhos Hardness
8.5 (mohs)
Density
4.55 (g/cm3)
Specific Heat
0.59 (J/g•cm-3) at 0-20℃
Elastic Modulus
310GPa
Youngs Modulus
3.17x104kg/mm2
Poisson Ratio
0.3
Tensile Strength
0.13-0.26GPa
Thermal Expansion
[111]: 7.8x10-6/K@0-250℃
[110]: 7.7x10-6/K@0-250℃
[100]: 8.2x10-6/K@0-250℃
Thermal Conductivity
14W/mK@20℃
10.5W/mK@100℃
Thermo-Optic Coefficient
dn/dt = 7.3x10-6/℃
Thermal-Shock Resistance
800W/m
Solubility
Insoluble in water and slightly soluble in acid
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According to customer requirements.