Silica Glass

Silica Glass

Eigenschaften 
Transmission Range

Infrasil: 0.2 - 3.7 µm
Suprasil: 0.16-2.68 µm (thickness 5mm)

Refractive Index

Infrasil: 1.45711 @633 nm 
Suprasil: 1.45702 @633 nm

Reflection Loss 

3.46% @0.633 µm

Density  

2.203 g/cm3

Melting point  

Infrasil: 1730°C softening temp.
Suprasil: 1600°C  softening temp.

Molecular Weight 

60.08

Thermal Conductivity  

1.38 W/(m·K) @293K

Spec. Heat Capacity  

Infrasil: 772 J/(kg·K)
Suprasil: 722 J/(kg·K)

Thermal Expansion  

0.51 · 10-6/°C @273-373K

Hardness (Mohs) 

592

Young's Modulus 

74 GPa

Shear Modulus 

31.2 GPa

Bulk Modulus  

36 GPa

Fracture Modulus 

100 MPa

Elastic Coefficient 

C11 = 77.6; C12 = 15.2; C44 = 31.2 GPa

Dielectric Constant

3.75 @f = 100 MHz, 293K

Solubility in Water 

unsoluble 

Crystal Type  

amorph

Poisson Ratio  

0.17

Application  

Infrasil: IR Optics
Suprasil: VUV, UV, VIS Optics

Remarks  

produced by Heraeus Quarzglas, different qualities, improved transmission 

Remarkable 
  • Quartz glass is the general name for glass made out of SiO2. There are different manufacturing processes and also naturally occurring quartz glass.
  • Raw forms for optical applications are bars or ingots, plates larger than 1m x 1m are also possible
  • Further characteristics:
    • high permeability for IR - UV radiation
    • a very low coefficient of thermal expansion
    • high thermal shock resistance with continuous use up to 1,100 ° C
    • a high softening temperature
    • high chemical resistance
    • a high dielectric strength
NOTE: Despite careful research, we do not accept any liability for the correctness of the information provided. Liability claims based on the use of the information are excluded in principle.

Silica Glass: Korth Kristalle - Vom Rohkristall zur hochpräzisen Optik. Durchblick für alle Wellenlängen - Seit 72 Jahren züchten wir Kristalle und fertigen daraus hochpräzise optische Komponenten für alle Wellenlängen vom IR- bis zum VUV-Bereich. Unsere Produkte kommen in allen Bereichen zum Einsatz, in denen eine hochentwickelte, präzise technische Ausstattung unerlässlich ist – von der Analytik bis hin zur Medizin- und Raumfahrttechnik.

Contact/Inquiry

Korth Kristalle

Am Jägersberg 3
24161 Altenholz

+49 (0)431 - 36 90 50
+49 (0)431 - 36 90 525

info@korth.de


Contact

Remarkable

  • Quartz glass is the general name for glass made out of SiO2. There are different manufacturing processes and also naturally occurring quartz glass.
  • Raw forms for optical applications are bars or ingots, plates larger than 1m x 1m are also possible
  • Further characteristics:
    • high permeability for IR - UV radiation
    • a very low coefficient of thermal expansion
    • high thermal shock resistance with continuous use up to 1,100 ° C
    • a high softening temperature
    • high chemical resistance
    • a high dielectric strength