What Is the Permittivity of Al2O3 Over 95% Polished?

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SUMMARY

The permittivity of Al2O3 (alumina) polished to over 95% is a critical factor in its electrical properties. The relative permittivity, also known as the dielectric constant, can be found on resources such as the website provided by Accuratus. Additionally, the permittivity of Al2O3 is frequency dependent, which is essential for applications in electronics and materials science.

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  • Understanding of dielectric materials and their properties
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  • Research the frequency dependence of dielectric materials
  • Explore the electrical properties of Al2O3 in various applications
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HPRF
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Hi

I was wondering if anyone could tell me the permittivity of Al2O3 >95% polished, or how to calculate it? Any useful electrical properties websites or books would be much appreciated.

Also I was wondering if the the permittivity was frequency dependent?

Thanks in advance
 
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