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Infrared Transmitting Glass vs. MDF

Infrared transmitting glass and MDF belong to fundamentally different material chemistries. Infrared transmitting glass is a ceramic material, while MDF is polymeric. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 9 material properties with values for both materials. Properties with values for just one material (10, 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 infrared transmitting glass and the bottom bar is MDF.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 4.4 to 4.8
0.75
Elastic (Young's, Tensile) Modulus, GPa 18 to 63
4.0
Poisson's Ratio 0.28 to 0.3
0.25
Specific Heat Capacity, J/kg-K 360 to 430
1700
Stiffness to Weight: Axial, points 2.3 to 7.3
3.0
Stiffness to Weight: Bending, points 20 to 28
71
Thermal Conductivity, W/m-K 0.0060 to 0.23
0.3
Thermal Diffusivity, mm2/s 0.0029 to 0.14
0.24
Thermal Expansion, µm/m-K 9.0 to 17
12