Refractory high strength Mullite kiln tray for high temperature furnace
1.Description of Mullite kiln tray
Mullite or porcelainite is a rare silicate mineral of post-clay genesis. It can form two stoichiometric forms 3Al2O32SiO2 or 2Al2O3 SiO2. Unusually, mullite has no charge balancing cations present. As a result, there are three different aluminium sites: two distorted tetrahedral and one octahedral.
Mullite was first described in 1924 for an occurrence on the Isle of Mull, Scotland. It occurs as argillaceous inclusions in volcanic rocks in the Isle of Mull, inclusions in sillimanite within a tonalite at Val Sissone, Italy and with emerylike rocks in Argyllshire, Scotland.
Mullite is present in the form of needles in porcelain.
It is produced during various melting and firing processes, and is used as a refractory material, due to its high melting point of 1840°C.
In 2006 researchers at University College London and Cardiff University discovered that potters in the Hesse region of Germany since the late Middle Ages had used mullite in the manufacture of a type of crucible (known as Hessian crucibles), that were renowned for enabling alchemists to heat their crucibles to very high temperatures.
2. Details
Deatails For Refractory kiln tray For Sintering Rare Earth Powder And Pigment
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DENSITY(g/cm3)
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2.4 |
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APPARENT PORSITY(%)
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ROOM TEMPERATURE
FLEXURAL STRENGTH(MPA)
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CYCLE USING TIMES
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| Advantage |
High Strength |
| Application |
Industrial Furnaces |
| Using Temperature |
＜1600 |
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