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Machinable Glass-ceramic vs. Yttria

Machinable glass-ceramic belongs to the glass and glass-ceramics classification, while yttria belongs to the oxide-based engineering ceramics. There are 10 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 machinable glass-ceramic and the bottom bar is yttria.

Metric UnitsUS Customary Units

Material Properties

Compressive (Crushing) Strength, MPa 310
390
Density, g/cm3 2.7
5.0
Elastic (Young's, Tensile) Modulus, GPa 67
120
Maximum Temperature: Mechanical, °C 760
2000
Specific Heat Capacity, J/kg-K 790
440
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 51
32
Thermal Conductivity, W/m-K 1.2
0.3
Thermal Diffusivity, mm2/s 0.56
0.14
Thermal Expansion, µm/m-K 21
8.0