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Alpha Quartz vs. Cordierite

Alpha quartz belongs to the non-glass optical ceramics classification, while cordierite belongs to the oxide-based engineering ceramics. There are 8 material properties with values for both materials. Properties with values for just one material (18, in this case) are not shown.

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

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 2.7
2.0 to 2.2
Elastic (Young's, Tensile) Modulus, GPa 91
62
Specific Heat Capacity, J/kg-K 720
800 to 850
Stiffness to Weight: Axial, points 19
15 to 17
Stiffness to Weight: Bending, points 57
59 to 67
Thermal Conductivity, W/m-K 8.5
1.3 to 1.7
Thermal Diffusivity, mm2/s 4.4
0.74 to 1.0
Thermal Expansion, µm/m-K 9.5
2.9 to 4.8