Saint-Gobain PuropsilÂ® B Infrared Grade Low [OH] Optical Fused Quartz

Category	Ceramic , Glass , Oxide , Silicon Oxide
Manufacturer	Saint-Gobain Quartz PLC
Trade Name	Puropsil®
Port	Ningbo port,China
Trade Terms	FOB, CFR, CIF
Payment Terms	L/C, T/T, Western Union
Download PDF	Saint-Gobain PuropsilÂ® B Infrared Grade Low [OH] Optical Fused Quartz.pdf
Price	EMAIL US sales@lookpolymers.com
	Online Service lookpolymers 27660005

Material Notes:

PuropsilÂ® B optical infrared fused quartz is manufactured from naturally occurring quartz crystal using a plasma process to ensure a low OH. It has excellent IR transmission with a useful IR transmission up to 3500 nm.Available as ingot, discs, plates, and components with machined or polished surface finish.General properties of Fused Silica and Fused quartz: A very wide transmission range from UV to near IR; extremely high optical transmission, excellent resistance to high power laser energy, excellent homogeneity, high temperature resistance, very low thermal expansion (resistance to thermal shock), and chemical inertness. General uses for optical quartz are microlithography optical systems, optical fibers, photomasks, laser optics, LCD displays, light guides, optical, IR , and UV windows, spectrophotometer cells, slides, optical pyrometers, and lamp bodies/components.Information provided by Saint-Gobain Quartz PLC.

Physical Properties	Metric	English	Comments
Density	2.21 g/cc	0.0798 lb/inÂ³

Mechanical Properties	Metric	English	Comments
Hardness, Knoop	820	820
Vickers Microhardness	1050 - 1350	1050 - 1350	kg/mÂ² Vickers DPH
Hardness, Mohs	7.0	7.0
Modulus of Elasticity	74.0 GPa	10700 ksi
Flexural Strength	50.0 MPa	7250 psi	Bending Strength
Compressive Strength	1100 MPa	160000 psi
Poissons Ratio	0.17	0.17
Shear Modulus	31.0 GPa	4500 ksi

Thermal Properties	Metric	English	Comments
CTE, linear	0.540 Âµm/m-Â°C @Temperature 0.000 - 1000 Â°C	0.300 Âµin/in-Â°F @Temperature 32.0 - 1830 Â°F	average
Specific Heat Capacity	0.750 J/g-Â°C	0.179 BTU/lb-Â°F
Thermal Conductivity	2.00 W/m-K	13.9 BTU-in/hr-ftÂ²-Â°F
Maximum Service Temperature, Air	1050 Â°C	1920 Â°F	Normal Conditions
	1350 Â°C	2460 Â°F	Extended periods if cycles remain above 300Â°C
	1350 Â°C	2460 Â°F
	1650 Â°C	3000 Â°F	Quick Immersion
Softening Point	1650 Â°C	3000 Â°F	Varies with thermal history
Annealing Point	1120 Â°C	2050 Â°F	Varies with thermal history

Optical Properties	Metric	English	Comments
Refractive Index	1.457 @Wavelength 632.8 nm	1.457 @Wavelength 632.8 nm	n<sub>He-Ne</sub>; Temperature Coefficient = 10.0 ppm/K
	1.4667 @Wavelength 435.83 nm	1.4667 @Wavelength 435.83 nm	n<sub>g</sub>; Temperature Coefficient = 10.6 ppm/K
Transmission, Visible	96 %	96 %	Including Fresnel reflection for 10 mm pathlength
IR Transmittance	20 % @Thickness 10.0 mm, Wavelength 3700 nm	20 % @Thickness 0.394 in, Wavelength 3700 nm	Including Fresnel reflection for 10 mm path length.
	96 % @Wavelength <=2500 nm, Thickness 10.0 mm	96 % @Wavelength <=2500 nm, Thickness 0.394 in	Including Fresnel reflection for 10 mm path length.

Component Elements Properties	Metric	English	Comments
SiO2	>= 99.99 %	>= 99.99 %

Electrical Properties	Metric	English
Electrical Resistivity	2.00e+10 ohm-cm @Temperature 800 Â°C	2.00e+10 ohm-cm @Temperature 1470 Â°F
Dielectric Constant	3.78 @Frequency 100 - 2.50e+10 Hz	3.78 @Frequency 100 - 2.50e+10 Hz
Dissipation Factor	0.000060 @Frequency 1e+9 Hz	0.000060 @Frequency 1e+9 Hz
	0.00075 @Frequency 1000 Hz	0.00075 @Frequency 1000 Hz

Descriptive Properties	Value	Comments
Bubble Class	1	per DIN 58927
Fluorescence	Blue/Violet	254 nm excitation
Granularity	Light
Inclusions	1	per DIN 58927
Refractive Index Homogeneity	10 x 10^-6
Residual Strain	5 nm/cm
Striae	B	per MIL-G-174A

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