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AC3225 Polished Alumina Substrate, Al2O3

Catalog No. AC3225
Material Al2O3
Purity 96%, 99.5%
Thickness (mm) 3.7g/cm3, 3.9g/cm3


Polished Alumina Substrate Description

Polished Alumina Substrate features dimensional stability at high temperatures for multilayer thin-film technology. It mitigates the electrical disconnection in thin-film printed circuits and withstands the extreme natural condition of some sample solutions and variances in temperature.

Polished Alumina Substrate Al2O3

Polished Alumina Substrate Specifications

Product No. A476T A479 A479H
Content % 96 99.5 99.5
Color White Ivory Ivory
Density (g/cm3) 3.7 3.9 3.9

Max. 120mm x 120mm SQ

Thickness: 0.25, 0.38, .0635mm

Thickness Tolerance

±0.02mm (<3 square inches)

±0.05mm (≥3 square inches)

Substrate Thickness (mm) 0.05-2.7 0.05-0.7 0.05-0.7
Flatness (mm) 0.05-0.6 0.05-0.4 0.05-0.4
Surface Roughness
(Mirror Polish) (mm)
<Ra0.05 <Ra0.02 <Ra0.01
Vickers Hardness HV9.807N (Gpa) 13.7 15.7 15.7
Flexural Strength (Mpa) 350 370 370
Young's Modulus of Elasticity 320 370 370
Thermal Conductivity (20℃) 24 32 32
Specific Heat Capacity (J/g·K) 0.78
Dielectric Strength (kV/mm) 15


Polished Alumina Substrate Applications

To hold samples for spectroscopic measurement.


Our Polished Alumina Substrate is carefully handled during storage and transportation to preserve the quality of our product in its original condition.


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