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Lead-alkali-silica Glass vs. Low Expansion Glass-ceramic

Both lead-alkali-silica glass and low expansion glass-ceramic are glass and glass-ceramics. There are 7 material properties with values for both materials. Properties with values for just one material (17, in this case) are not shown.

For each property being compared, the top bar is lead-alkali-silica glass and the bottom bar is low expansion glass-ceramic.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 3.1
2.4
Elastic (Young's, Tensile) Modulus, GPa 67
83
Electrical Resistivity Order of Magnitude, 10x Ω-m 12
11
Flexural Strength, MPa 34
35
Stiffness to Weight: Axial, points 12
19
Stiffness to Weight: Bending, points 43
59
Thermal Expansion, µm/m-K 9.0
1.7