Alpha Quartz vs. High-alumina Refractory

Alpha quartz belongs to the non-glass optical ceramics classification, while high-alumina refractory belongs to the oxide-based engineering ceramics. There are 5 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is alpha quartz and the bottom bar is high-alumina refractory.

Crystalline (Alpha) Quartz Optical Material High-Alumina Refractory (IEC 60672 Type C-510)

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Material Properties

Density, g/cm³		2.7
Density, g/cm³		2.1

Specific Heat Capacity, J/kg-K		720
Specific Heat Capacity, J/kg-K		800

Thermal Conductivity, W/m-K		8.5
Thermal Conductivity, W/m-K		1.5

Thermal Diffusivity, mm²/s		4.4
Thermal Diffusivity, mm²/s		0.87

Thermal Expansion, µm/m-K		9.5
Thermal Expansion, µm/m-K		4.3

Alpha Quartz vs. High-alumina Refractory

Material Properties

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