石英 JGS1~3区别

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1、DifferentPropertiesParameter

2、ValueJGS1JGS2JGS3MaximumSize<Φ200mm<Φ300mm<Φ200mmTransmissionRange0.17~2.10um0.26~2.10um0.185~3.50um(Mediumtransmissionratio)(Tavg>90%)(Tavg>85%)(Tavg>85%)OH-Content1200ppm150ppm5ppmFluorescence(ex254nm)VirtuallyFreeStrongv-bStrongV-BImpur

3、ityContent5ppm20-40ppm40-50ppmBirefringenceConstant2-4nm/cm4-6nm/cm4-10nm/cmOxy-hydrogenElectricalMeltingMethodSyntheticCVDmeltingmeltingLaserSemiconductorsubstrate:andhighIR&UVApplicationsWindow,lens,temperaturesubstrateprism,mirror...windowSameproperties3Density2.20

4、g/cmAbbeConstant67.6RefractiveIndex(nd)at588nm1.4586Wavelength(um)RefractiveIndex(n)Wavelength(um)RefractiveIndex(n)0.2001.550511.0001.450420.2201.528451.0641.449620.2501.507451.1001.449200.3001.487791.2001.448050.3201.482741.3001.446920.3601.475291.5001.444620.4001.4

5、70121.6001.443420.4501.465571.7001.442170.4881.463021.8001.440870.5001.462331.9001.439510.5501.460082.0001.438090.5881.458602.2001.435010.6001.458042.4001.431630.6331.457022.6001.427890.6501.456532.8001.423770.7001.455293.0001.419250.7501.454243.2001.414270.8001.45332

6、3.3701.409900.8501.452503.5071.405660.9001.451753.7071.39936Hardness5.5-6.5Mohs'Scale570KHN1007DesignTensileStrength4.8x10Pa(N/mm2)(7000psi)9DesignCompressiveStrengthGreaterthan1.1x10Pa(160,000psi)106BulkModulus3.7x10Pa(5.3x10psi)106RigidityModulus3.1x10Pa(4.5x10psi)-

7、106Young'sModulus7.2x10Pa(10.5x10psi)Poisson'sRatio0.17-7CoefficientofThermalExpansion5.5x10cm/cm.°C(20°C-320°C)ThermalConductivity1.4W/m.°CSpecificHeat670J/kg.°CSofteningPoint1683°CAnnealingPoint1215°CStrainPoint1120°C7ElectricalReceptivity7x10ohm.cm(350°C)Dielectric

8、Properties(20°Cand1MHz)Constant3.757Strength5x10V/m-4LossFactorLessthan4x10-4DissipationFactorLessthan1x103VelocityofSound-ShearWave3.75x10m/s3VelocityofSound/CompressionWave5.90x10m/sSonicAttenuationLessthan11db/mMHz32PermeabilityConstants(cmmm/cm(700°C)seccmofHg)-10

9、210x10Helium-1021x10Hydrogen-1017x10Deuterium-179.5x10NeonChemicalStability(excepthydrofluoric)Highresistancetowaterandacids