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GM-120 Glass Ceramic vs. Fused Silica

Both GM-120 glass ceramic and fused silica are glass and glass-ceramics. There are 9 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 GM-120 glass ceramic and the bottom bar is fused silica.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 2.5
2.2
Dielectric Strength (Breakdown Potential), kV/mm 11
30
Elastic (Young's, Tensile) Modulus, GPa 56
73
Electrical Resistivity Order of Magnitude, 10x Ω-m 10
14
Flexural Strength, MPa 57
67
Stiffness to Weight: Axial, points 13
18
Stiffness to Weight: Bending, points 52
63
Thermal Conductivity, W/m-K 3.0
1.4
Thermal Expansion, µm/m-K 9.5
0.5