Dry Processing 95 Alumina Ceramic Sealed Parts
Alumina ceramic sealed parts
1. Description:
Alumina ceramic sealed parts is produced with high-purity toughened alumina ceramics and thick-film nickel plating technology.It is suitable for brazing different materials such as copper and alloys. It can meet the requirements of seismic and tensile at the same time, and it can withstand high current and arc shock. Reaching the reliable sealing and insulation standards of DC high-voltage relays, it is currently an excellent technical solution in the field of new energy vehicles and DC high-voltage electronic control.
2. Key Words:
Installing DC relay , new energy vehicle, 95% alumina ,dry-processing , customized mold according technical drawing,manufacture samples , open mould ,aluminum oxide,thick-film nickel plating technology,copper and alloys,great limberness,Good corrosion resistance,High intensity,Good high-temperature resistance performance,High purity.
3. Parameters:
| Product Parameters | ||
| Physical Property | Material | 95% Alumina |
| Production Process | Dry Pressing | |
| Product Dimension | Per customers' drawing | |
| Density (g/cm3) | 3.70-3.75g/cm3 | |
| Water Absorption | 0% | |
| Mechanical Performance | Flexural Strength (Mpa) | 310Mpa |
| Modulus of Elasticity (Gpa) | 310Gpa | |
| Hardness (Gpa) | 12.9Gpa | |
| Poisson Ratio | 0.23 | |
| Thermal Character | Linear Thermal Expansion Coefficient | 7.2 |
| Heat Conductivity (W/mk) | 23 | |
| Electrical Property | Dielectric Constant | 9.2 |
| Dielectric Loss Tangent (x10-4) | 8 | |
| Insulation Strength (x106V/M) | 15 | |
| Metalized Ceramic Performance | Air Tightness (Pa·m3/s) | ≤10-8 |
| Bulk Resistivity (Ω·cm) | ≥1010 (20°C), ≥106 (300°C) | |
| Bonding Strength (Mpa) | ≥120Mpa | |
| Metallization Thickness (μm) | ≥20μm | |
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