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Boron Carbide vs. Alkali-lime-silica Glass

Boron carbide belongs to the non-oxide engineering ceramics classification, while alkali-lime-silica glass belongs to the glass and glass-ceramics. There are 7 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 boron carbide and the bottom bar is alkali-lime-silica glass.

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Material Properties

Density, g/cm3 2.1 to 2.7
Elastic (Young's, Tensile) Modulus, GPa 240 to 460
Electrical Resistivity Order of Magnitude, 10x Ω-m 0 to 11
Flexural Strength, MPa 170 to 410
34 to 170
Stiffness to Weight: Axial, points 63 to 100
Stiffness to Weight: Bending, points 91 to 100
Thermal Expansion, µm/m-K 4.5 to 5.6