Hunan Meicheng Ceramic Technology Co., Ltd.
Hunan Meicheng Ceramic Technology Co., Ltd.
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Alumina ceramic ring for EV power battery
1. Description:
The alumina ceramic ring for EV power battery is for power battery of new energy EV Cars. sealing performance is very good.
it is made of 95 percent aluminum oxide, and features of high temperature resistance,corrosion resistance and long service life.
2.Key Words:
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 Shows :
| Product Parameters | ||
| Physical Property | Material | 95% Alumina |
| Production Process | Dry Pressing and Brazing | |
| 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 | |
