Product Code : CE-Al6O13Si2-NN-CUS
Mullite or porcelainite is a rare silicate mineral formed during contact metamorphism of clay minerals. Mullite has excellent thermal shock resistance and dielectric strength, making it ideal for electronic components for manufacturing purposes. 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,Sintered Mullite Sintered Mullite is produced at over 1750 ℃ high temperature after multiple selection process and multistage homogenization, with the quality natural bauxite as the raw material. It is characterized by high content, large bulk density, good thermal shock stability, low high-temperature creep value and good chemical corrosion resistance. With the good quality stability.
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Product Information
Mullite or porcelainite is a rare silicate mineral formed during contact metamorphism of clay minerals. Mullite has excellent thermal shock resistance and dielectric strength, making it ideal for electronic components for manufacturing purposes. 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,
Sintered Mullite Sintered Mullite is produced at over 1750 ℃ high temperature after multiple selection process and multistage homogenization, with the quality natural bauxite as the raw material. It is characterized by high content, large bulk density, good thermal shock stability, low high-temperature creep value and good chemical corrosion resistance. With the good quality stability.
Synonyms
Aluminum silicate, andalusite, kyanite, sillimanite, aluminosilicate, aluminum doped silica, alumina-silica, silicon aluminum oxide, silicon aluminate, Aluminum Oxide/Silicon Oxide; Mullite; hexaaluminumdioxosilane; oxo-oxoalumanyloxy-alumane, Mullite-alpha; Cerabeads 1700, 1260518-72-6, 142844-00-6, 55964-99-3, Al2SiO3
Sintered Mullite Specification
Size：customized
Purity: 99%(2N), 99.9%(3N), 99.99%(4N), 99.999%(5N).
Per your request or drawing
We can customized as required
Properties（Theoretical）
| Compound Formula | Al6O13Si2 |
| Molecular Weight | 426.052432 |
| Appearance | crystalline |
| Flexural Strength, MOR (20 °C) | 45 - 170MPa |
| Fracture Toughness, KIc | 2MPa m1/2 |
| Melting Point | 1810 °C |
| Density | 2.7 to 3.0 g/cm3 |
| Thermal Conductivity (20 °C) | 4W/m K |
| Solubility in H2O | 0.07 g/l at 20 °C - insoluble |
| Coefficient of Thermal Expansion | 4.0 - 5.0x 10-6/°C |
| Electrical Resistivity | 10 to 11 10x Ω-m |
| Poisson's Ratio | 0.25 |
| Specific Heat | 950 J/kg-K |
| Tensile Strength | 160 MPa (Ultimate) |
| Thermal Conductivity | 3.5 to 11 W/m-K |
| Maximum Use Temperature | 1700°C |
| Dielectric Strength (6.35mm) | 9.8 - 10.0ac-kV/mm |
| Dielectric Loss (tan δ) | 0.002(1MHz, 25 °C) |
| Thermal Expansion | 5.8 µm/m-K |
| Young's Modulus | 110 to 170 GPa |
| Exact Mass | 425.776975 |
| Monoisotopic Mass | 425.776975 |
| Volume Resistivity (25°C) | 1010 to 1014Ω-cm |
| Mullite phase 3Al2O3 2SiO2 (%) | ≥95 |
| Glass phase (%) | ≤5 |
| Chemical Composition (%) | Bulk Density (g/cm³) | Moisture Absorption (%) | |||
| Al2O3 | SiO2 | Fe2O3 | K2O+Na2O | ||
| 44-47 | 47-52 | ≤1.35 | ≤0.45 | 2.45 | ≤2.0 |
| 58-62 | 35-38 | ≤1.4 | ≤0.4 | 2.6 | ≤3.0 |
| 69-73 | 22-25 | ≤1.6 | ≤0.4 | 2.75 | ≤3.0 |
Applications of Mullite
It has the characteristics of high content, high packing density, good thermal shock stability, low creep value at high temperature and good chemical corrosion resistance. Mullite has good quality and stability. It is the ideal raw material for making various shaped and unshaped refractories, advanced sanitary ware billet, crucible, saggar, precision casting and other products.
Packing of Mullite
Standard Packing:
Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes Special package is available on request.
ATTs’ Mullite is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition.
Chemical Identifiers
| Linear Formula | 3Al2O3 • 2SiO2 |
| CAS | 1302-93-8 |
| MDL Number | MFCD00077645 |
| EC No. | 215-113-2 |
| Beilstein/Reaxys No. | N/A |
| Pubchem CID | 56841936 |
| IUPAC Name | dioxosilane; oxo(oxoalumanyloxy)alumane |
| SMILES | O=[Al]O[Al]=O.O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O |
| InchI Identifier | InChI=1S/6Al.2O2Si.9O/c;;;;;;2*1-3-2;;;;;;;;; |
| InchI Key | KZHJGOXRZJKJNY-UHFFFAOYSA-N |
