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Yttria vs. Alpha Quartz

Yttria belongs to the oxide-based engineering ceramics classification, while alpha quartz belongs to the non-glass optical ceramics. There are 10 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is yttria and the bottom bar is alpha quartz.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 5.0
2.7
Elastic (Young's, Tensile) Modulus, GPa 120
91
Light Transmission Range, µm 0.3 to 12
0.13 to 3.4
Melting Onset (Solidus), °C 2440
1590
Specific Heat Capacity, J/kg-K 440
720
Stiffness to Weight: Axial, points 13
19
Stiffness to Weight: Bending, points 32
57
Thermal Conductivity, W/m-K 0.3
8.5
Thermal Diffusivity, mm2/s 0.14
4.4
Thermal Expansion, µm/m-K 8.0
9.5