General
Property | Value | Comment |
---|---|---|
Density | 3.73 g/cm³ Show Supplier Material materials with Density of 3.73 g/cm³ | |
Surface roughness | 0.8 μm Show Supplier Material materials with Surface roughness of 0.8 μm | as fired surface |
Water absorption | 0.1 % Show Supplier Material materials with Water absorption of 0.1 % |
Mechanical
Property | Value | Testing Standard | Comment |
---|---|---|---|
Flexural strength | 300 MPa Show Supplier Material materials with Flexural strength of 300 MPa | DR sigma 0 | 0.63-1.00 mm thickness | rings 6 / 12 mm |
Thermal
Property | Temperature | Value | Comment |
---|---|---|---|
Specific heat capacity | 20 °C | 0.7 J/(kg·K) Show Supplier Material materials with Specific heat capacity of 0.7 J/(kg·K) | |
100 °C | 0.9 J/(kg·K) Show Supplier Material materials with Specific heat capacity of 0.9 J/(kg·K) | ||
Thermal conductivity | 20 °C | 22 W/(m·K) Show Supplier Material materials with Thermal conductivity of 22 W/(m·K) | Xe-flash | sample 16*16mm² | material specific thickness ≤ 3.5mm |
Electrical
Property | Temperature | Value | Frequency | Comment |
---|---|---|---|---|
Dielectric constant | 8.3 - 11.3 [-] Show Supplier Material materials with Dielectric constant of 8.3 - 11.3 [-] | 1 GHz, 10 MHz, 100 MHz | 2mm thickness | Ra ≤ 0.4μm | |
Dissipation factor | 0.01 [-] Show Supplier Material materials with Dissipation factor of 0.01 [-] | 1 GHz, 10 MHz, 100 MHz | max. | 2mm thickness | Ra ≤ 0.4μm | |
Electrical resistivity | 20 °C | 1e+11 Ω·m Show Supplier Material materials with Electrical resistivity of 1e+11 Ω·m | ||
200 °C | 1e+09 Ω·m Show Supplier Material materials with Electrical resistivity of 1e+09 Ω·m | |||
400 °C | 1e+07 Ω·m Show Supplier Material materials with Electrical resistivity of 1e+07 Ω·m | |||
600 °C | 100000 Ω·m Show Supplier Material materials with Electrical resistivity of 100000 Ω·m |
Technological properties
Property | ||
---|---|---|
Application areas | CeramTec uses Rubalit® alumina ceramics for CeramCore cores for metal-oxide, carbon-film, metal-layered, thin-film and wire-wound resistors. The fine structures of Rubalit® 600, 702 und 708 play a vital role in delivering very high and consistent surface quality. Using Rubalit® 600, 702 und 708 as core materials help create resistors with a lower noise factor and more stable resistance, increases resistance against electrical shock loads and improves reliability in laser trimming. This makes it possible to achieve higher integration density while simultaneously ensuring higher power density. CeramTec boasts decades of manufacturing experience, enabling the company to produce ceramic parts for passive components with tight dimensional tolerances while delivering very high surface quality even for large-scale production with quantities ranging in the billions. | |
Chemical composition | The material main component is Al₂O₃ with 95.8% content. Residue mainly consists of MgO, SiO2 and CaO and traces of other elements. |