Manufacturing Processes
- Dry pressing
- Co-firing
- Roll compacting
- Slip casting
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Isostatic pressing
Advanced Finishing Services
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Precision grinding and lapping
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Machining to precision tolerances
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Engineering design and support
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Threaded components
Steatite
Overview
Steatite ceramics are often used in electrical insulation applications due to their excellent electrical properties, including low dielectric loss combined with a high dielectric strength make it an excellent inexpensive component for electronics and manufacturing processes. Many insulators and other standoffs are made of steatite. The cost of this material is relatively low when compared with other ceramic materials.
Ortech provides state of the art materials manufactured using the most cost-effective processes. Ortech manufacturing facilities to support quick-turn prototype development and high-volume production.
Material Properties Chart
| Steatite | |||
|---|---|---|---|
| Density g/cm3 | 2.78 | ||
| Crystal Size Average Microns | – | ||
| Water Absorption % | 0 | ||
| Gas Permeability – | 0 | ||
| Color – | Beige | ||
| Flexural Strength (MOR) 20° C MPa (psi x 103) | 140 | ||
| Elastic Modulus 20° C GPa (psi x 106) | 110 | ||
| Poisson’s Ratio 20° C – | – | ||
| Compressive Strength 20° C MPa (psi x 103) | – | ||
| Hardness Rockwell R45N | 57 | ||
| Tensile Strength 25° C MPa (psi x 103) | – | ||
| Fracture Toughness K(I c) MPam1/2 | – | ||
| Thermal Conductivity 20° C W/m K | 2.5 | ||
| Coefficient of Thermal Expansion 25-1000° C 1X 10-6/°C | 9 | ||
| Specific Heat 100° C J/kg*K | – | ||
| Thermal Shock Resistance Δ Tc °C | 100 | ||
| Dielectric Strength 6.35mm ac-kV/mm (ac V/mil) | |||
| Dielectric Constant 1 MHz 25° C | |||
| Dielectric Loss (tan delta) 1 MHz 25° C | |||
| Volume Resistivity 25° C ohm-cm | |||
| Volume Resistivity 500° C ohm-cm | |||
| Volume Resistivity 1000° C ohm-cm | |||
| Maximum Use Temperature | 1200 C |