C-Mac Ceramics and Metal Components

C-Mac International

Your Source for Ceramic and Metal Components

 
Property Unit 60% Alumina 75% Alumina 90% Alumina 96% Alumina 99+% Alumina Steatite Cordierite Zirconia
Density g/cc 3 3.2 3.4 3.6 3.8 >2.6 2.3 6
Hardness Mohs 7.5 7.5 7.5 8 8 7 6.5 8
Flexural Strengty kpsi 25 30 30-40 40-45 >45 15 9 >110
Compressive Strength kpsi 65 70 250-300 280-300 >300 60 30 >300
Factor of Expansion 10-6/0C 7.5 8 8 8 8 8 1.3 10
Dielectric Constant   6 6.1 8.1 9.2 9.7 5.5 5 12.3
Dielectric Strength kV/mm 10 10 15 15 17 >9 13 17

Thermal Conductivity

 W/m-k 2.5 12 18 23 24 2.5 2.5 3

Maximum Operating Temp.

 0C 1100 1150 1500 1600 1700 1200 1100 2200

 

C-Mac International - Pittsburgh, PA - (412) 406 - 7171
 
 
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