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Suppliers of Custom and Stock CAMBRIDGE, ENGLAND Technical Support Bulletin DATA SHEET GE 124

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Chemical composition Fused quartz consists mainly of SiO2 with some trace elements. The typical chemical trace element composition of type GE 124 fused quartz contains the following elements in ppm (by weight)

Li 0.6 Mn <0.05 B <0.2 Fe 0.2 Na 0.7 Ni 0.7 Mg 0.1 Cu 0.05 Al 14 As <0.002 P <0.2 Cd <0.01 K 0.6 Zr 0.8 Ca 0.4 Sb <0.003 Ti 1.1 OH 5 Cr <0.05

Optical Properties The typical transmission curve shows the transmission for the UV to IR range. UV microscopy is mostly in the 250- 290nm range where the material exhibits excellent transmittance.

Vof Micro to Nano T +31-85-2013155 Wateringweg 79 E [email protected] 2031EK Haarlem I www.microtonano.com The Netherlands Kvk AMS: # 62301959 1 UQG (Optics) Ltd. The Norman Industrial Estate, 99-101 Cambridge Road, Milton, Cambridge CB24 6AT. England. Tel | +00 44 (0) 1223 420329 Fax | +00 44 (0) 1223 420506 Email | [email protected] www.uqgoptics.com UQG OPTICS MAKES EVERY EFFORT TO VERIFY 3RD PARTY TECHNICAL DATA BUT ACCEPTS NO RESPONSIBILITY FOR ACCURACY Suppliers of Custom and Stock Optics CAMBRIDGE, ENGLAND

DATA SHEET Technical Support BulletGEi n124

Physical and mechanical properties The mechanical properties of fused quartz are similar to those of other , although it has higher temperature stability, resistance and higher compressive strength.

Parameter Typical value 2.2 x 103 kg/m3 Hardness 5.5 - 6.5 Moh's scale Tensile strength 4.8 x 107 Pa Compressive strength >1.1 x 109 Pa 3.7 x 1010 Pa Rigidity modulus 3.1 x 1010 Pa Young's modulus 7.2 x 1010 Pa Poisson's ratio 0.17 coefficient (20-230°C) 5.5 x 10-7cm/cm.°C (20°C) 1.4 W/m.°C Specific Heat (20°C) 670 J/kg.°C Softening point 1683 °C point 1215 °C Strain point 1120 °C Index 1.46 Constringence (Nu value) 67.56 Velocity of sound shear wave 3.75 x 103 m/s Vof Micro to Nano T +31-85-2013155 Wateringweg 79 E [email protected] 2031EK Haarlem I www.microtonano.com The Netherlands Kvk AMS: # 62301959 2 UQG (Optics) Ltd. The Norman Industrial Estate, 99-101 Cambridge Road, Milton, Cambridge CB24 6AT. England. Tel | +00 44 (0) 1223 420329 Fax | +00 44 (0) 1223 420506 Email | [email protected] www.uqgoptics.com UQG OPTICS MAKES EVERY EFFORT TO VERIFY 3RD PARTY TECHNICAL DATA BUT ACCEPTS NO RESPONSIBILITY FOR ACCURACY Suppliers of Custom and Stock Optics CAMBRIDGE, ENGLAND

DATA SHEET GE 124 Technical Support Bulletin

Velocity of sound compression wave 5.90 x 103 m/s Sonic attentuation < 11db/m MHz Permeability constants (700°C) Cm3mm/cm2 sec.cm of Hg) Helium 210 x 10-10 21 x 10-10 Deuterium 17 x 10-10 Neon 9.5 x 10-10

3 UQG (Optics) Ltd. The Norman Industrial Estate, 99-101 Cambridge Road, Milton, Cambridge CB24 6AT. England. Tel | +00 44 (0) 1223 420329 Fax | +00 44 (0) 1223 420506 Email | [email protected] Micro to Nano T +31-85-2www.013155uqgoptics .com UQG OPTICS MAKES EVERY EFFORT TO VERIFY 3RD PARTY TECHNICAL DATA BUT ACCEPTSWateri NOng RESPONSIBILITYweg 79 FOR ACCURACYE [email protected] 2031EK Haarlem I www.microtonano.com The Netherlands Kvk AMS: # 62301959 Suppliers of Custom and Stock Optics CAMBRIDGE, ENGLAND

DATA SHEET GE 124 Technical Support Bulletin

4 UQG (Optics) Ltd. The Norman Industrial Estate, 99-101 Cambridge Road,Vof Milton,Micro Cambridge to Nano CB24 6AT.T England. +31-85-2013155 Tel | +00 44 (0) 1223 420329 Fax | +00 44 (0) 1223 420506 Email | [email protected] 79 E [email protected] .com UQG OPTICS MAKES EVERY EFFORT TO VERIFY 3RD PARTY TECHNICAL DATA BUT 2ACCEPTS031EK NO Haa RESPONSIBILITYrlem FOR ACCURACYI www.microtonano.com The Netherlands Kvk AMS: # 62301959 Suppliers of Custom and Stock Optics CAMBRIDGE, ENGLAND

DATA SHEET GE 124 Technical Support Bulletin

Thermal Properties

Electrical Properties Fused quartz is preferred to for electrical insulation. Both electrical insulation and microwave transmission properties are retained at very high temperatures and a wide range of frequencies.

Electrical resistance (350°C) 7 x 107 ohm cm Specific resistivity (20°C) 10-18 ohm/cm3 Dielectric properties (20°C and 1Mhz) Constant 3.75 Strength 5 x 107 V/m Loss factor < 4 x 10-4 Dissipation factor < 1 x 10-1

Vof Micro to Nano T +31-85-2013155 Wateringweg 79 E [email protected] 5 UQG (Optics) Ltd. The Norman Industrial Estate, 99-101 Cambridge Road,2 0Milton,31EK CambridgeHaarlem CB24 6AT. England.I www.microtonano.com Tel | +00 44 (0) 1223 420329 Fax | +00 44 (0) 1223 420506 Email | [email protected] Netherlands Kvk AMS: #www. 62301uqgoptics959 .com UQG OPTICS MAKES EVERY EFFORT TO VERIFY 3RD PARTY TECHNICAL DATA BUT ACCEPTS NO RESPONSIBILITY FOR ACCURACY Suppliers of Custom and Stock Optics CAMBRIDGE, ENGLAND

DATA SHEET GE 124 Technical Support Bulletin

6 UQG (Optics) Ltd. The Norman Industrial Estate, 99-101 Cambridge Road, Milton, Cambridge CB24 6AT. England. Vof Micro to Nano T +31-85-2013155 Tel | +00 44 (0) 1223 420329 Fax | +00 44 (0) 1223 420506 Email | [email protected] www.uqgoptics.com UQG OPTICS MAKES EVERY EFFORT TO VERIFY 3RD PARTY TECHNICAL DATA BUT WaACCEPTSteri NOng wRESPONSIBILITYeg 79 FOR ACCURACYE [email protected] 2031EK Haarlem I www.microtonano.com The Netherlands Kvk AMS: # 62301959 Suppliers of Custom and Stock Optics CAMBRIDGE, ENGLAND

DATA SHEET GE 124

Technical Support Bulletin

Acknowledgment: Momentive Corporation for providing technical data

7 UQG (Optics) Ltd. The Norman Industrial Estate, 99-101 Cambridge Road, Milton, Cambridge CB24 6AT. England. Tel TS| +00B 1440 0(0)8 112235-1 420329Technic Faxal in | +00for m44a (0)tio 1223n fo r420506 type G EmailE 12 4| [email protected] fused quartz 2015-10-29 Revision 1 www.uqgoptics.com UQG OPTICS MAKES EVERY EFFORT TO VERIFY 3RD PARTY TECHNICAL DATA BUT ACCEPTS NO RESPONSIBILITY FOR ACCURACY Vof Micro to Nano T +31-85-2013155 Wateringweg 79 E [email protected] 2031EK Haarlem I www.microtonano.com The Netherlands Kvk AMS: # 62301959