Mateck Fused Silica UV-VIS Grade (SiO 2 )

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Mateck Fused Silica UV-VIS Grade (SiO₂)
Categories:	Ceramic; Oxide; Silicon Oxide
Material Notes:	Optical crystals
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Physical Properties	Metric	English	Comments

Density	2.21 g/cc @Temperature 20.0 °C	0.0798 lb/in³ @Temperature 68.0 °F
Solubility	0.00 ppm	0.00 ppm

Mechanical Properties	Metric	English	Comments
Modulus of Elasticity	73.6 GPa	10700 ksi
Poissons Ratio	0.17	0.17
Shear Modulus	31.4 GPa	4550 ksi

Thermal Properties	Metric	English	Comments
CTE, linear	4.00 µm/m-°C @Temperature -50.0 - 50.0 °C	2.22 µin/in-°F @Temperature -58.0 - 122 °F
Specific Heat Capacity	0.728 J/g-°C	0.174 BTU/lb-°F
Thermal Conductivity	1.35 W/m-K @Temperature 20.0 °C	9.37 BTU-in/hr-ft²-°F @Temperature 68.0 °F
Melting Point	1900 °C	3450 °F

Optical Properties	Metric	English	Comments
Refractive Index	1.4131 @Wavelength 3243.9 nm	1.4131 @Wavelength 3243.9 nm
	1.4494 @Wavelength 1083 nm	1.4494 @Wavelength 1083 nm
	1.4584 @Wavelength 589.3 nm	1.4584 @Wavelength 589.3 nm	at nd
	1.4601 @Wavelength 546.1 nm	1.4601 @Wavelength 546.1 nm	at ne
	1.4696 @Wavelength 404.6 nm	1.4696 @Wavelength 404.6 nm
	1.615 @Wavelength 170 nm	1.615 @Wavelength 170 nm
Transmission, Visible	99.9 % @Wavelength 400 nm	99.9 % @Wavelength 400 nm	Internal Transmittance
IR Transmittance	0.00 % @Wavelength 2720 nm	0.00 % @Wavelength 2720 nm	Internal Transmittance
	29.5 % @Wavelength 2900 nm	29.5 % @Wavelength 2900 nm	Internal Transmittance
	58 % @Wavelength 2200 nm	58 % @Wavelength 2200 nm	Internal Transmittance
	67 % @Wavelength 3000 nm	67 % @Wavelength 3000 nm	Internal Transmittance
	79 % @Wavelength 2500 nm	79 % @Wavelength 2500 nm	Internal Transmittance
	88 % @Wavelength 2300 nm	88 % @Wavelength 2300 nm	Internal Transmittance
	95 % @Wavelength 2380 nm	95 % @Wavelength 2380 nm	Internal Transmittance
	99.9 % @Wavelength 2000 nm	99.9 % @Wavelength 2000 nm	Internal Transmittance
UV Transmittance	63 % @Wavelength 170 nm	63 % @Wavelength 170 nm	Internal Transmittance
	96 % @Wavelength 200 nm	96 % @Wavelength 200 nm	Internal Transmittance

Descriptive Properties
Thermal Coefficient of Refractive Index	1E-05		at nc microns for +20°C
Transmission Range (microns)	0.18 - 3.5

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