Product Code : CE-Mg2Al4Si5O18-NN-CU
Cordierite combines great thermal shock properties, low thermal expansion rate, and good electrical insulation. It is an excellent fit for inexpensive insulators used in manufacturing and durable goods. Cordierite (mineralogy) or iolite (gemology) is a magnesium iron aluminium cyclosilicate. Iron is almost always present and a solid solution exists between Mg-rich cordierite and Fe-rich sekaninaite with a series formula: (Mg,Fe)2Al3(Si5AlO18) to (Fe,Mg)2Al3(Si5AlO18).A high-temperature polymorph exists, indialite, which is isostructural with beryl and has a random distribution of Al in the (Si,Al)6O18 rings， Cordierite ceramic is also useful because it has a low thermal expansion and good electrical insulation compared to other ceramic materials. It can be formed into a variety of complex geometries by employing several types of manufacturing process such as axial pressing, isotactic pressing, injection molding and extrusion.
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| Product | Product Code | Purity | Size | Contact Us |
Cordierite combines great thermal shock properties, low thermal expansion rate, and good electrical insulation. It is an excellent fit for inexpensive insulators used in manufacturing and durable goods. Cordierite (mineralogy) or iolite (gemology) is a magnesium iron aluminium cyclosilicate. Iron is almost always present and a solid solution exists between Mg-rich cordierite and Fe-rich sekaninaite with a series formula: (Mg,Fe)2Al3(Si5AlO18) to (Fe,Mg)2Al3(Si5AlO18).A high-temperature polymorph exists, indialite, which is isostructural with beryl and has a random distribution of Al in the (Si,Al)6O18 rings， Cordierite ceramic is also useful because it has a low thermal expansion and good electrical insulation compared to other ceramic materials. It can be formed into a variety of complex geometries by employing several types of manufacturing process such as axial pressing, isotactic pressing, injection molding and extrusion.
Synonyms
Magnesium aluminum silicate, Cordierite ceramic refractory grade, 2MgO·2Al2O3·5SiO2, 2MgO.2Al2O3.5SiO2, CAS 12330-40-4
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 | Mg2Al4Si5O18 |
| Appearance | Orange to tan powder |
| Melting Point | 1460 °C |
| Density | 2.0 to 2.3 g/cm3 |
| Solubility in H2O | Insoluble |
| Electrical Resistivity | 10 10x Ω-m |
| Poisson's Ratio | 0.21 |
| Specific Heat | 800 to 850 J/kg-K |
| Flexural Strength, MOR (20 °C) | 100MPa |
| Thermal Conductivity (20 °C) | 2.5W/m K |
| Tensile Strength | 190 MPa (Ultimate) |
| Thermal Expansion | 2.9 to 4.8 µm/m-K |
| Coefficient of Thermal Expansion | 4 x 10-6/°C |
| Maximum Use Temperature | 1200°C |
| Dielectric Strength (6.35mm) | 10ac-kV/mm |
| Dielectric Loss (tan δ) | 71MHz, 25 °C |
| Volume Resistivity (25°C) | 1012Ω-cm |
| Young's Modulus | 62 GPa |
| Volume Resistivity 300 °C ohms-cm: | 2.1 x 109 |
| Volume Resistivity 500 °C ohms-cm: | 2.9 x 107 |
| Dielectric Constant 25°C / 1 kHz: | 5.3 |
| Dissipation Factor 25°C/ 1 kHz: | 0.018 |
| RT 300° C 10-6/°C: | 4 |
| RT 700°C 10-6/°C: | 3.6 |
| RT 900°C 10-6/°C: | 3.7 |
Applications of Cordierite
Electrical insulators
Household Appliances (Insulators)
Heating element supports
Refractory supports in ovens or kilns
Thermocouples
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’ Cordierite 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 | 2MgO • 2Al2O3 • 5SiO2 |
| CAS | 1302-88-1 |
