High Temperature Magnesia Powder
Our High Temperature Magnesia Powder is made of fused magnesium that contains more than 98% MgO, firstly grinned, secondly added additives, and thirdly proceeded with high temperature calcinations. The product has following features:
- Temperature resistance：excellent electrical performance, low leakage current under high temperature conditions, High safety，Has been widely applied to the elements heating in air.
- Filling effect：Good flow properties, better density when filled into heat pipe, therefore good thermal effects.
- No Silicone oil added: greatly extend the life of product in high-temperature environment.
Chmeical & Physical Property
| Name | Silicone Coating | Type | Chemical Analysis(%) | Physical Property | ||||||
| Mgo | CaO | SiO2 | Fe2O3 | Ai2O3 | Sieve Analysis Mesh | Flow Rate s/% | Tap Density g/cm3 | |||
| High Temperature Mgo | Without silicon coating | MEG-1 | ≥96 | ≤1.0 | ≤2.0 | ≤0.5 | ≤0.5 | 40-325 | 150±15 | 2.28-2.50 |
| Without silicon coating | MEG-2 | 80-325 | 160-180 | 2.24-2.34 | ||||||
| Without silicon coating | MEG-3 | 40-325 | 150±15 | 2.28-2.50 | ||||||
Electrical Property
| Type | Operate Temerature °C | Electrical Property | |||||||
| Normal Condition | Humidity Condition | Heating Condition | |||||||
| Insulation Resistence MΩ | Withstand Votage V | Wattage Current w/cm2 | Leakage Current mA | Insulation Resistence MΩ | Withstand Votage V | Insulation Resistence MΩ | Withstand Votage V | ||
| MEG-1 | ≤1050 | ≥1000 | 2500 | 10 | ≤0.2 | ≥3 | ≥1800 | 0 | 0 |
| MEG-2 | ≤800 | ≥1000 | 2500 | 9 | ≤0.2 | ≥3 | ≥1800 | 0 | 0 |
| MEG-3 | ≤800 | ≥1000 | 2500 | 9 | ≤0.2 | ≥3 | ≥1800 | 0 | 0 |