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Machinable Glass Ceramic
Machinable Glass Ceramic is an outstanding engineering material and is machinable with ordinary metalworking tools. It has a low thermal conductivity and is a useful high temperature insulator. Further more, it is an excellent electrical insulator and has a high maximum use temperature (800°C continuous, 1000°C peak). No longer is it necessary to staff a ceramic specialist with high temperature kilns or specialized diamond grinding equipment.
Main Properties of Machinable Glass Ceramic
| ITEM | UNIT | MGC |
| Type | - | Glass Ceramic |
| Density | g/cm3 | 2.55 |
| Color | - | white |
| Water Absorption | % | 0 |
| Young Modulus | Gpa | 65 |
| Vickers Hardness | Gpa | - |
| Compressive Strength | Mpa | 500 |
| Flexural Strength | Mpa | 100 |
| Thermal Conductivity | W/m.K | 1.70 |
| Thermal Shock Resistance | Δ(°C) | 25 - 100 |
| Max. Working Temp. | °C | 1000 |
| Volume Resistivity | Ω ·cm | 10^16 |
| Dielectric Constant | - | 6.02 |
| Dielectric Strength | kV/mm | 40 |
* Tests under room temperature environment;
* The above information is offered for comparison only. Exact
>>> Machining
Machining tolerances are surprisingly tight, up to10 microns (.0005”).It can bemachined to a surfacefinishof less than 0.5 micron (20 microinch) and polished to a smoothness of 125 angstroms 0.5 microinch) average roughness. Most conventionalmachining processes can be used. Configurationsare limited only by available equipment and theexperience of the machinist.
>>> Typical Applications
- Precision coil formers, high voltage insulators
- Laser industry
- Spacers/reflectors/cavities in laser assemblies
- High vacuum industry
- Thermal breaks
- Coil supports
- Vacuum feedthroughs
- Aerospace/space industry
* We also provide machining services according
to customers specifications or drawings.
