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Ensinger PEI

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Schott LG-760 Phosphate Laser Glass
Categories: Ceramic; Glass; Optical

Material Notes: LG-760 is a potassium-barium-aluminum-phosphate based glass with a high cross section for stimulated emission, low nonlinear refractive index, and the best athermal characteristics.

Information provided by SCHOTT.

Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesOriginal ValueComments
Density 2.60 g/cc
 
Chemical PropertiesOriginal ValueComments
Acid Class, SR 4.0pH = 0.3 at 25 °C
Alkali Class, AR 4.0pH = 12 at 50 °C
Stain Resistance Class, FR 1.0pH = 4.6 100 h at 25 °C
 
Mechanical PropertiesOriginal ValueComments
Hardness, Knoop 3400.1/20
Modulus of Elasticity 53.7 GPa
Poissons Ratio 0.267
Fracture Toughness 0.470 MPa-m½KIC
Shear Modulus 21.2 GPaCalculated
 
Thermal PropertiesOriginal ValueComments
CTE, linear 125 µm/m-°C
@Temperature 20.0 - 40.0 °C
 150.4 µm/m-°C
@Temperature 20.0 - 300 °C
Specific Heat Capacity 0.750 J/g-°C
Thermal Conductivity 0.570 W/m-K
@Temperature 25.0 °C
 0.600 W/m-K
@Temperature 90.0 °C
Transformation Temperature, Tg 350 °C
 
Optical PropertiesOriginal ValueComments
Refractive Index 1.519
 1.508
@Wavelength 1054 nm
 1.514
@Wavelength 633 nm
Transmission, Visible 69.2 %
 
Descriptive Properties
Climatic resistance2Water Vapor at 40 – 50 °C for 30 h
Thermal Diffusivity2.92 [10-7 m2/sec]

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CSGT9939 / 183192

Proto3000 – 3D Engineering Solutions

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