Description
Product Overview Magnesium oxide ceramics belong to the cubic crystal system. Magnesium oxide ceramics have a
large thermal expansion coefficient and a high vapor pressure. The melting point is 2800 ° C, but it is
volatile above 2300 ° C; the specific volume resistance (35V/mm) at high temperature is large. Has
good insulating properties. Product Features
1. High-purity magnesium oxide ceramics have strong corrosion resistance to metals and alkaline
solutions, and are used as crucibles for melting high-purity iron and alloys as well as nickel, thorium,
uranium, tin, lead, zinc, copper, cobalt and their alloys. 2. As a container for fused alumina and
aluminum salts.
3. The thermocouple protection tube made of magnesium oxide is used to measure the high temperature
above 2000ºC.
MgO Ceramic Physical Properties
|
| Properties | Unit | MgO |
| Contents | % | 95, 99.5 |
| Density | g/cm3 | 3.56 |
| Hardness | Mohs' | 6 |
| Liner Thermal Expansion | /ºC | 8.6 x 10-6 |
| (40° to 250°) |
| Work Temperature | ºC | 2400 |
| Flexual Strength | MPa | 84 |
| Compressure Strength | MPa | 14 |
| Fracture Strength (5 distance) | MPa | 125 |
| Thermal Conductivity | W/m.k | 15.9-42 |
| Volume Resistivity (100 ºC) | - | >1012 |
| Dielectric Constant 1.0 MHz | - | 5.8 |
| Max Size | - | 250mm Long |
Complaint
