This technical information has been contributed by
Ferro-Ceramic Grinding, Inc.

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Ceramic Properties - Cordierite

This is mainly a structural ceramic, often used for kiln furniture due to its extremely good thermal shock resistance. Like other structural ceramic parts materials, it also has good thermal and electrical insulating capabilities.

PropertiesUnitsTestValue
Physical
Chemical Formula 2MgO-2Al2O3-5SiO2
Density, rg/cm3ASTM C202.60
Color tan
Crystal Structure orthorhombic
Water Absorption% @R.T.ASTM C3730.02 - 3.2
HardnessMoh's 7
Hardnessknoop (kg/mm2)Knoop 100g--
Mechanical
Compressive StrengthMPa @ R.T.ASTM C773350
Tensile StrengthMPa @ R.T.ACMA Test #425.5
Modulus of Elasticity
(Young's Mod.)
GPaASTM C84870
Flexural Strength (MOR)MPa @ R.T.ASTM F417117
Poisson's Ratio, u ASTM C8180.21
Fracture Toughness, KIcMPa x m1/2Notched Beam Test--
Thermal
Max. Use Temperature
(* denotes inert atm.)
CNo load cond.1371
Thermal Shock ResistanceDT (C)Quenching500
Thermal ConductivityW/m-K @ R.T.ASTM C4083.0
Coefficient of Linear Thermal Expansion, almm/m-C (~25C through 1000C)ASTM C3721.7
Specific Heat, cpcal/g-C @ R.T.ASTM C3510.35
Electrical
Dielectric Constant1MHz @ R.T.ASTM D1504.7
Dielectric StrengthkV/mmASTM D1165.11
Electrical ResistivityWcm @ R.T.ASTM D18291014

This technical information has been contributed by
Ferro-Ceramic Grinding, Inc.

Click here to find suppliers

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