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+49 (0) 36 41 288 130

Glass Ceramic VITRONIT® Machinable Glass Ceramic

Summary

VITRONIT® is a white, non-porous and not degassing mica glass ceramic for technical applications. You can use conventional tools to machine our VITRONIT® material very precisely into complicated shapes at an attractive price. No post-firing is required after the machining stage.

This material combines the excellent properties of ceramics with the exquisite machinability of metals and offers you individual manufacturing and application options adapted to your individual requirements.


VITRONIT® is composed of:

  • SiO2; Al2O3; MgO; K2O; Na2O; F
  • ca. 60 % mica crystal phase
  • ca. 40 % glassy matrix

With VITRONIT®, you have a first-class ceramic engineering material at your disposal with which you can accomplish many of your tasks.

Quality

You wish and expect reliable top quality products. Therefore, we produce our machinable glass ceramic VITRONIT® in compliance with a quality management system of the German DIN standard "DIN EN ISO 9001: Revision 2000". We take care of our QM system via regular audits.

We are committed to your requirements - no less than excellent quality.

On demand, we deliver your infrared glasses with a Certificate Of Conformance (COC). Our charge numbers allow VITRON to trace back each fabrication step.

Delivery Forms

According to your wishes, you can order our VITRONIT® glass ceramic as:
Cut to size blanks:

Rods
min Ø 5,0mm bis max. Ø 100 mm
Rectangulars
min. Ø 5,0 mm bis max. Ø 90 mm
min. Ø 50,0 mm bis max. Ø 250 mm

Feel free to ask us for custom-made blanks different from our standard shapes. Please take into consideration our molten bath block sizes.

  • 280 mm x 140 mm x 90 mm
  • 180 mm x 180 mm x 90 mm

Machined parts according to your drawings:
Please send us your drawings and we will make you an individual offer.

Quantities:
from individual items to medium quantities

Technical Data

VITRONIT® machinable glass ceramic is white and airtight. You can use conventional metal working tools to machine it very precisely into complicated shapes at an attractive price even for small quantities. No post-firing is required after the machining stage.

This material combines the excellent properties of ceramics with the exquisite machinability of metals, offering you manufacturing and application options adapted to your individual requirements.

Structural properties

Density
2,66 g/cm³
 
Porosity
0
 
Degasification
0
 
Water absorption
0
 
Thermal expansion coefficient:
20 – 400°C
9,5x10-6K-1
Maximum operating temperature
 
1000°C
Maximum working temperature
 
700°C
Thermal conductivity
25°C
1,72 W/mK
Specific heat
25°C
789 J/kgK

Electrical properties

Dielectric strength
DIN VDE 0335 T.2:1988-02/Abschn. 12 (IEC 243)
 
12 kV/mm
Specific volume resistivity
DIN VDE 0303T.32:1996-08 (IEC 345)
 
4x1012 Ohmcm
Dielectric constant
20°C, 1MHz
14
Dielectric loss factor
50°C, 1kHz
0,022

Mechanical properties

Transverse rupture strength
 
120 MPa
Young's modulus
 
74,5 Gpa
Shear modulus
 
29 Gpa
Poisson's ratio
 
0,24
Compressive strength
 
450 MPa

Chemical properties

Hydrolytic resistance class
DIN 12111
2
Acid class
DIN 12116
3
Alkaline solution class
DIN 52322
1

Additional information

Lathing
Cutting speed
Fz
30-50
0.05 – 0,2
mmin-1
mm
Cutting
Cutting speed
Fz
10-20
0,01 – 0,05
mmin-1
mm
Machining cooling water solution
 
 
Emulsion
Sub-assemblies
 
 
Rods
Discs
Bars
size/dimensions
 
max.
250 mm

Applications

Our machinable glass ceramic is suitable for a wide variety of uses.

If you need precision components made of ceramic materials in small and medium quantities, you can manufacture them at a particularly attractive price.


Our clients come from branches such as:

  • welding technology
  • vacuum technology
  • Electrical engineering
  • electronic and semiconductor technology
  • laser industries
  • mechanical engineering
  • apparatus engineering
  • aerospace industry
  • nuclear technology
  • research and development
Drehteile für Schweiß- und CO2 Laser Bearbeitungsanlagen

For low volume productions, replace conventional ceramic materials by the VITRONIT® glass ceramic.

Vitron Spezialwerkstoffe GmbH
Am Naßtal 5, 07751 Jena
Phone: +49 (0) 36 41 288 130
Fax: +49 (0) 36 41 288 155