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Alpha Quartz vs. Beryllia

Alpha quartz belongs to the non-glass optical ceramics classification, while beryllia belongs to the oxide-based engineering ceramics. There are 10 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

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

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 2.7
2.9
Elastic (Young's, Tensile) Modulus, GPa 91
350
Poisson's Ratio 0.13
0.26
Shear Modulus, GPa 31
180
Specific Heat Capacity, J/kg-K 720
1050
Stiffness to Weight: Axial, points 19
67
Stiffness to Weight: Bending, points 57
82
Thermal Conductivity, W/m-K 8.5
270
Thermal Diffusivity, mm2/s 4.4
89
Thermal Expansion, µm/m-K 9.5
8.0