Schott N-LAK14 Glass

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Schott N-LAK14 Glass
Categories:	Ceramic; Glass
Material Notes:	Information Provided by SCHOTT North America, Inc.
Key Words:	697554.363
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.
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Physical Properties	Original Value	Comments

Density	3.63 g/cc

Chemical Properties	Original Value	Comments
Acid Class, SR	52.3
Alkali Class, AR	1.0
Stain Resistance Class, FR	2.0

Mechanical Properties	Original Value	Comments
Knoop Microhardness	730	.1/20
Modulus of Elasticity	111 GPa
Poissons Ratio	0.283
Shear Modulus	43.0 GPa	calculated

Thermal Properties	Original Value	Comments
CTE, linear	5.50 µm/m-°C @Temperature -30.0 - 70.0 °C
	6.90 µm/m-°C @Temperature 20.0 - 300 °C
Transformation Temperature, Tg	661 °C
Softening Point	734 °C	Viscosity 10^7.6 dPa s
Annealing Point	653 °C	Viscosity 10^13.0 dPa s

Optical Properties	Original Value	Comments
Refractive Index	1.6968 @Wavelength 587.6 nm	n_d
	1.6998 @Wavelength 546.1 nm	n_e
Abbe Number	55.19	ve
	55.41	vd
Optical Dispersion	0.012575	nf - nc
	0.012679	nf' - nc'
Transmission, Visible	95.9 % @Thickness 10.0 mm, Wavelength 380 nm
	98.4 % @Thickness 10.0 mm, Wavelength 405 nm
	99.4 % @Thickness 10.0 mm, Wavelength 460 nm
	99.7 % @Thickness 10.0 mm, Wavelength 580 nm
	99.8 % @Thickness 10.0 mm, Wavelength 700 nm
IR Transmittance	38.2 % @Thickness 10.0 mm, Wavelength 2500 nm
	98.4 % @Thickness 10.0 mm, Wavelength 1530 nm
UV Transmittance	8.9 % @Thickness 10.0 mm, Wavelength 300 nm
	64.2 % @Thickness 10.0 mm, Wavelength 334 nm
	99.3 % @Thickness 10.0 mm, Wavelength 370 nm

Descriptive Properties
B	0
Climatic Resistance Test CR	3
HG	2
K (10^-6mm²/N)	1.73
Phosphate Resistance PR	3

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CSGS035 / 93369

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