alumina corundum ceramic plate

Alumina Content

 

****5%

****6%

> *9.5%

*9%

General Application

 

Lower Cost Electrical & Mechanical

High Strength, Wear Resistant, Electronic, Insulating, Mechanical, Structural & Metalizing

Extremely High Purity, Temperature & Strength; Excellent Corrosion & Wear Resistance

Porous, Easily Degassed & Machinable

Porosity

%

*-.*5

*-.*5

*-.*5

Variable

Density

gm/cm3

3.***3.*0

3.***3.*5

3.***3.*5

2.4

Flexural Strength

kpsi

*5.***0.0

*0.***0.0

*0.***5.0

-

Comprehensive Strength

kpsi

**0.0

> **0.0

> **0.0

-

Tensile Strength

kpsi

*5.***0.0

*0.***8.0

*0.***8.0

-

Linear Coefficient of Thermal Expansion

(cm/cm/°C)
*****0°C
*****0°C

5.9X***6
6.5X***6

6.3X***6
7.0X***6

6.5X***6
7.5X***6

6.5X***6
7.5X***6

Dielecctric Constant at *5°C

1 MH
*0 MH

8.**8.9
8.**8.8

9.**9.8
9.**9.6

9.**9.9
9.**9.7

-

Dielectric Strength

Volt/mil

**0

**5

**5

-

Te Value

°F
°C

***2
**0

> ***2
> ***0

> ***2
> ***0

> ***2
> ***0

Thermal Conductivity at *5°C

cal/sec/cm2/cm/°C

.**-.*4

.**-.*6

.**-.*8

-

Thermal Shock

 

Good

Good

Good

Good

Safe Use
Temperature

°F
°C

***0
***0

********0
********0

***5
***0

***5
***0