Click to view original image1.JGS1( High-purity UV optical quartz glass)
JGS1 optical quartz glass plate is a very good kind of light transmission glass, because it nearly has no any air-bubbles in glass. At 185nm wavelength, the UV transmission can be up to 90%. JGS1 is generally used in the range of 185-2500nm wavelength.
2.JGS2 (UV quartz glass)
2.JGS2 (UV quartz glass)
JGS2 quartz glass plate has little air-bubbles in glass, and is generally used as heat-resistant glass. If used as optical glass, its transmission wavelength is 220-2500nm.
3.JGS3 (Infrared quartz glass)
It has a good performance of infrared light transmission with a transmittance of over 85%. It is recommended for applications in the wavelength range of 260-3500nm.
It has a good performance of infrared light transmission with a transmittance of over 85%. It is recommended for applications in the wavelength range of 260-3500nm.
Characteristics
Table 1.
|
Mechanical Property
|
Reference Value
|
|
Density
|
2.2g/cm3
|
|
Compressive Strength
|
1100Mpa
|
|
Bending Strength
|
67Mpa
|
|
Tensile Strength
|
48Mpa
|
|
Poisson's Ratio
|
0.14¡«0.17
|
|
Elastic Modulus
|
72000Mpa
|
|
Shearing Modulus
|
31000Mpa
|
|
Mohs Hardness
|
5.5¡«6.5
|
Table 2.
|
Mechanical Property
|
Reference Value
|
|
Deformation Point
|
1280¡æ
|
|
Softening Point
|
1780¡æ
|
|
Annealing Point
|
1250¡æ
|
|
Specific Heat(20¡«350¡æ)
|
670J/kg.¡æ
|
|
Thermal Conductivity(20¡æ)
|
1.4W/m.¡æ
|
|
Refractive Index
|
1.4585
|
|
Coefficient of thermal expansion
|
5.5×10-7cm/cm.¡æ
|
|
Hot work temperature
|
1750¡«2050¡æ
|
|
The temperature for a short time
|
1300¡æ
|
|
The temperature for a long time
|
1100¡æ
|
Table 3.
|
Electrics Property
|
Reference Value
|
|
Resistivity
|
7×107Ω.cm
|
|
Dielectric Strength
|
250¡«400Kv/cm
|
|
Dielectric Constant
|
3.7¡«3.9
|
|
Dielectric absorption coefficient
|
<4×104
|
|
Dielectric loss coefficient
|
<1×104
|