Hot Sell Al2O3 Alumina Ceramic Thermal substrate for PCB/LED
Alumina ceramic is Al2O3 as main raw material, in the rare metal oxide as flux, special ceramic sheets after one thousand degrees 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 and aluminum 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.
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 and aluminum 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.
Feature:
1.Light weight
2.High hardness
3.Wide scope of application
4.Extremely abrasive resistance performance
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
1.Light weight
2.High hardness
3.Wide scope of application
4.Extremely abrasive resistance performance
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
Performance
Physical properties: high insulation resistance, breakdown, high temperature resistance, abrasion resistance, high strength (three meters altitude fall not broken)
Fire rating: USA military standard MIL-F-51058 (the highest level)
Typical application: strong current, voltage, strong high temperature parts, IC MOS, IGBT power tube heat pipe insulation
Certification: natural organic matter, the European Union, exempt products without certification materials
Thermal conductivity: high temperature: 1600 degrees below the ideal heat insulating material of high voltage and high frequency equipment.
Physical properties: high insulation resistance, breakdown, high temperature resistance, abrasion resistance, high strength (three meters altitude fall not broken)
Fire rating: USA military standard MIL-F-51058 (the highest level)
Typical application: strong current, voltage, strong high temperature parts, IC MOS, IGBT power tube heat pipe insulation
Certification: natural organic matter, the European Union, exempt products without certification materials
Thermal conductivity: high temperature: 1600 degrees below the ideal heat insulating material of high voltage and high frequency equipment.
Application
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.
Physical properties: high thermal conductivity, high
voltage insulation resistance, high temperature
resistant, abrasion resistant, high strength
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.
Physical properties: high thermal conductivity, high
voltage insulation resistance, high temperature
resistant, abrasion resistant, high strength
| Test Item | Unit | Numerical Value | ||
| Product Material | ---- | Alumina | Zirconia | |
| Component Content | % | >=99% | >=96% | 90% |
| Sintering Temp | ºC | 1780~1800 | 1650~1680 | 1550~1600 |
| Specific Gravity | G/cm^3 | >=3.6 | >=3.8 | >=6.0 |
| Breakdown Voltage Strength | KV/mm | 15 | 15 | 15 |
| Bibulous Rate | % | <0.01 | <0.01 | <0.01 |
| Anti Pressure | Mpa | 3700 | 2400 | 5000 |
| Hardness | Hra | >=88 | >=82 | >=85 |
| Volume Resistance | Cm | >1012 | >1012 | >1012 |
| Bending Resistance | Mpa | 400 | 320 | 700 |
| Thermal Expansion Coefficient | ---- | 6.8~8 | 6.2~8.5 | 6.9~10 |
| Dielectric Constant | MHz | 9.8 | 8.5 | 10 |
| Roughness | Ra | <=0.8 | <=0.8 | <=0.8 |
| Mirror Polished | ---- | <=0.05 | <=0.1 | <=0.05 |
| Thermal Conductivity | W/m-k | 25 | 20 | 25 |
| Temprature Resistance | ºC | 1700 | 1600 | 1800 |
| Online Services:24 hours,Inquiry reply within fastest. |
| Well- Trained & Experienced Staff are to answer all your requirements. |
| Standard Export Carton Or Marked With Customer's Information Or Customized. |
| Sample Order delivered within 24 hours. |
FAQ
Q:Can we get the sample? If can , how to get it ?A:Yes , we can offer you the free sample if have in stock , but not include the shipping cost . Please feel free to contact to our sales if you need the sample.
Q:How can you guarantee the quality ?
A:With advanced professional machine and testing equipment,we ensure 100 % quality before shipment.
Q: Can we OEM or according to our requirement to cut the size ?
A:We are a China Manufacture specialized in the thermal insulation materials, for example,Silicone Rubber pad,Thermal tape,Thermal Grease,Silicone Cloth with more than 11 years old.
Q:What payment term is available?
A:Bank transfer , Paypal ,Western Union , Master Card ,VISA .
Any question or want to know,please contact to me !!!