Features
1. Light weight
2. High hardness
3. Wide scope of apllication
4. Extremely abrasive resistance performance
Performance
1. Fire Rating: USA military standard MIL-F-51058
2. Certification: natural organic matter, the European Union, exempt products without certification materials
3. Thermal Conductivity: high temperature: 1600 degrees below the ideal heat insulating material of high voltage and high frequency equipment.
Applications
Alumina ceramic is mainly used in large power equipment, IC MOS tube, IGBT chip heat conducting insulation, high frequency power supply, communication, mechanical equipment, strong current, high voltage, high temperature and other thermal heat insulation parts need products.
Alumina Ceramic
Alumina ceramic is al2o3 as main raw materials, in the rare metal oxide as flux, special ceramic sheets after one thousand degree high temperature roasting into. Alumina ceramic al2o3 content is high, the structure is relatively compact, with special properties, it is known as the special ceramics. The al2o3 ceramic materials are densely arranged six party structure for oxygen ion amd aluminium ion, filled in 2/3 with eight sides in the gap, which is the same with natural corundum stable alpha al2o3 structure, so the ceramics with high melting point, high hardness, good wear-resistance.
Speciation
Regular Size and models
TO-220: 1mm*14mm*20mm
TO-3P: 1mm*20mm*25mm
TO-264: 1mm*22mm*28mm
TO-247: 0.635mm*17mm*22mm
Technical Data
| Properties Table |
| Test Item/Unit | Numerical Value | Test Item/Unit | Numerical Value |
| Paoduct Material | Alumina | Zirconia | Product Material | Alumina | Zirconia |
| Component Content % | ≥99% | ≥95% | ≥90% | Volume Resistance mm | >1012 | >1012 | >1012 |
| Sintering Temp ºC | 1780-1800 | 1650-1680 | 1550-2600 | Bending Strength Mpa | 400 | 320 | 1100 |
| Specific Gravity g/cm3 | ≥3.8 | ≥3.6 | >6 | Thermal Expansion Coefficient *10° | 6.8-8.0 | 6.2-8.5 | 6.9-10 |
| Breakdown Voltage Strength kv/mm | 15 | 15 | 15 | Roughness um | ≤0.8 | ≤0.8 | ≤0.8 |
| Bibulous Rate % | <0.01 | <0.01 | <0.01 | Mirror Polished Ra | ≤0.05 | ≤0.1 | ≤0.05 |
| Anti Pressure Mpa | 3700Mpa | 2400Mpa | 5000Mpa | Thermal Conductivity W/m.k | 25 | 20 | 2.5 |
| Hardness Hra | ≥88 | ≥82 | ≥88 | Temperature Resistance ºC | 1700 | 1600 | 1800 |
Our Services
1. In time delivery
2. quality assurance
3. Competitive price
4. Free samples are available
5. Customized order is available
6. Professional recommendations on products choice
Why Choose Us
1. Here you can find the most competitive factory price which is almost equal to the actual cost
2. We will make a strict time schedule for your order to 100% ensures the timely delivery.
3. We can make the ceramic into the size and shapes as requested
4. You will be kept updated of the production state during the whole production process.
5. Prompt reply within 12 hours
6. Custom logo printing is accepted.