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Cordierite vs. Ferrite

Both cordierite and ferrite are oxide-based engineering ceramics. There are 17 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is cordierite and the bottom bar is ferrite.

Metric UnitsUS Customary Units

Mechanical Properties

Compressive (Crushing) Strength, MPa 420
430 to 2000
Elastic (Young's, Tensile) Modulus, GPa 62
120 to 140
Flexural Strength, MPa 17 to 32
120 to 150
Fracture Toughness, MPa-m1/2 2.0
1.4 to 1.5
Tensile Strength: Ultimate (UTS), MPa 190
48 to 71

Thermal Properties

Specific Heat Capacity, J/kg-K 800 to 850
710 to 1050
Thermal Conductivity, W/m-K 1.3 to 1.7
3.9 to 6.3
Thermal Expansion, µm/m-K 2.9 to 4.8
8.0 to 9.3

Electrical Properties

Dielectric Constant (Relative Permittivity) At 1 MHz 4.7
12 to 270
Electrical Resistivity Order of Magnitude, 10x Ω-m 9.5
1.0 to 1.5

Otherwise Unclassified Properties

Density, g/cm3 2.0 to 2.2
4.7 to 4.8

Common Calculations

Stiffness to Weight: Axial, points 15 to 17
15 to 16
Stiffness to Weight: Bending, points 59 to 67
35 to 36
Strength to Weight: Axial, points 24 to 27
2.8 to 4.1
Strength to Weight: Bending, points 33 to 38
6.2 to 8.0
Thermal Diffusivity, mm2/s 0.74 to 1.0
0.78 to 1.9
Thermal Shock Resistance, points 47 to 78
3.0 to 4.6