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Cordierite vs. High-alumina Refractory

Both cordierite and high-alumina refractory are oxide-based engineering ceramics. There are 8 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is cordierite and the bottom bar is high-alumina refractory.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 2.0 to 2.2
2.1
Flexural Strength, MPa 17 to 32
28
Maximum Temperature: Mechanical, °C 1150
1200
Maximum Thermal Shock, °C 290 to 390
210
Specific Heat Capacity, J/kg-K 800 to 850
800
Thermal Conductivity, W/m-K 1.3 to 1.7
1.5
Thermal Diffusivity, mm2/s 0.74 to 1.0
0.87
Thermal Expansion, µm/m-K 2.9 to 4.8
4.3