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GM-120 Glass Ceramic vs. Machinable Glass-ceramic

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

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 2.5
2.7
Dielectric Strength (Breakdown Potential), kV/mm 11
27
Elastic (Young's, Tensile) Modulus, GPa 56
67
Electrical Resistivity Order of Magnitude, 10x Ω-m 10
14
Flexural Strength, MPa 57
96
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 52
51
Thermal Conductivity, W/m-K 3.0
1.2
Thermal Expansion, µm/m-K 9.5
21