Corundum-Mullite Saggers are ceramic containers designed for high temperature applications, constructed using corundum (Al2O3) and Mullite (Al6Si2O13) materials combined. Not only does this product offer superior temperature properties due to the corundum component but it is also thermal shock resistant due to the Mullite properties.
Corundum Mullite Saggars can be utilized across a range of industries, such as ceramics, metallurgy and powder processing. Built to withstand high temperatures during heat treatments or firing processes, these devices ensure materials stay safe.
These materials possess superior thermal stability and can withstand temperatures up to 1700 degrees Celsius without cracking or breaking under extreme temperature fluctuations. Furthermore, their very low thermal expansion coefficients prevent breaking or cracking under sudden temperature shifts.
Corundum saggars made of mullite boast excellent chemical resistance, making them suitable for use in atmospheric or corrosive environments. These corundum saggars can withstand alkalis, acids and other common industrial chemicals without experiencing damage.
Corundum mullite’s high mechanical strength enables them to maintain the integrity of their structure even under harsh conditions, including being resistant to thermal shock and withstanding repeated cooling/heating cycles without incurring major damage.
These saggars are commonly employed for firing ceramics, sintering powders, heating metals and other processes requiring high temperatures where safety of material being treated is an imperative.
Properties | Unit | Value |
Al₂O₃ | % | 70-90 |
Al2O3+ SiO2 | % | >97 |
Fe2O3 | % | <0.5 |
Refractoriness under load | ℃ | ≥1700 |
Apparent Porosity | % | 13-20 |
Bulk Density | g/cm3 | 2.65-3.0 |
Normal temperature compressive strength | Mpa | ≥70 |