Magnesia
Family Overview
Magnesia (magnesium oxide, MgO) is a specialty ceramic with outstanding high-temperature performance, used primarily in thermal engineering, heating elements, and refractory applications. The cost-effective base material is suitable for mass production and the mechanical strength of the open porous material can be adapted based on application requirements.
Application examples include:
- Mineral insulated thermoelectric couples
- Mineral insulated instrument leads
- Crushable tubes for mineral insulated cables
- Mineral insulated heating conductors
Ceramic Expertise
Contact a CoorsTek expert to discuss a custom manufactured Magnesia solution for your application.
| Properties | Units | Value |
| Flexural Strength, MOR (20 °C) | MPa | 82 - 103 |
| Fracture Toughness, KIc | MPa m1/2 | — |
|
Thermal Conductivity (20 °C) |
W/m K | — |
| Coefficient of Thermal Expansion | 1x10-6/°C | 12 - 14 |
| Maximum Use Temperature | °C | — |
| Dielectric Strength (6.35mm) | ac-kV/mm | — |
| Dielectric Loss (tan δ) | 1MHz, 25 °C | — |
| Volume Resistivity (25°C) | Ω-cm |
1 x 1010 to 6 x 1010 |