Alumina 960 machinable ceramic
Final Advanced Materials provides Al2O3 machinable ceramics. Cotronics® machinable Alumina is available in boards and rods, we can machine according to your drawings.
Cotronics® Rescor® 960 is a 96% Alumina machinable ceramic that is usable to 1650°C. It is manufactured from high purity alumina by a unique process.
Machining can be accomplished with conventional tooling on standard shop equipment. No heat treatment is required. Rescor® 960 machinable Alumina can be used continuously to temperatures of 1650°C and offers the convenience and economy of an in house capability for Alumina parts. The chemical, thermal and electrical properties of Rescor® 960 is equivalent to standard high alumina ceramics.
Alumina 960 applications
- Electrical and electronic industries
- Metallurgical
- Fixtures and vacuum industries
Technical data
|
Properties |
Units |
Alumina 960 |
|
Physical characteristics |
||
|
Density |
g/cm3 |
3.8 |
|
Porosity |
% |
10 |
|
Water uptake |
% |
2 - 3.5 |
|
Mechanical characteristics |
||
|
Hardness |
Mohs: 5 |
|
|
Compressive Strength |
N/mm2 |
422 |
|
Flexural Strength |
N/mm2 |
267 |
|
Modulus of Elasticity |
GPa |
/ |
|
Thermal characteristics |
||
|
Peak Temperature |
°C |
1650 |
|
Continuous Temperature |
°C |
1650 |
|
Specific Heat at 20°C |
J/kg°K |
/ |
|
Thermal Conductivity at 100°C |
W/m°K |
4.61 |
|
Coefficient of Expansion 20 - 40°C |
10-6/°K |
/ |
|
20 - 600°C |
/ |
|
|
20 - 800°C |
/ |
|
|
20 - 1000°C |
/ |
|
|
Electrical characteristics |
||
|
Specific Resistivity at 20°C |
Ohm.cm |
1014 |
|
Dielectric Constant at 20°C |
at 1 KHz |
9 (@ 100kHz) |
|
Loss Tangent |
at 1 KHz |
/ |
|
Dielectric Strength at 20°C |
kV/mm |
7.87 |
|
Chemical characteristics |
||
|
Corrosion resistance at 20°C |
Good |
|
|
Resistance to alkalis at 20°C |
Good |
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