General Technical Specifications for CerCo Aluminum Oxide for Microwave Applications
 
High Frequency Electrical Characteristics * (at 10 Ghz)

 

Dielectric Permitivity:

 9.2

Dissipation Factor:

 0.00012

Q*f:

 83333
Physical Characteristics

 

Density (gm/cc):

 3.89

Porosity:

 Gas Tight

Water Absorption:

 None

Hardness Hv5:

 1530 (kg/mm2)

Flexural Strength:

 40 kpsi

Thermal Conductivity:

 35 W/m.degree K @25C

Coefficient of Linear
Thermal Expansion:

 5.10E-06 @ 25-200C (x per degree C, ASTM C-32)


 
Electrical Characteristics

 

Dielectric Strength:

 215 (V/mil) estimated, testing in process

Volume Resistivity:

 1.50E+15 (Ohm-cm) estimated testing in process
* Sample geometry for high frequency measurements were cylinders with 0.05 in. O.D. and 0.6 in. thickness.

Properties stated are typical for this material system.

May, 1998

 

  

 

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