Metalized Ceramic Substrates for Circuit Components
Alumina substrate is widely used in LED ceramic suite, Printers, direct bonding copper and HIC.
The advantages of alumina ceramic substrates :
The main material of our products is high purity quality alumina, which cause no negative effective effect to the grinded material.
High density and hardness, impact resistance, low loss rate, smooth surface and no contamination to product.
With high grinding efficiency which can reduce grinding time to reduce energy cost and being good for environment protection.
Alumina ceramic substrate application
Working in high temperature enviroment.
Abrasive application etc.
Materials Performance
| Item |
Unit | Performance | |||||
Alumina ceramic |
steatite ceramic | |||||||
90% | 92% | 95% | 96% | |||||
Ceramic Body
| Appearance | Color | - | white,ivory white,brown,black | White off-white | |||
Mechanical Characters |
Bulk Density | g/cm3 | ≥3.6 | ≥3.65 | ≥3.7 | ≥3..75 | 2.7 | |
Water Absorption | % | 0 | 0 | |||||
Flexural strength | MPa | 280 | 300 | 310 | 320 | 150 | ||
(HV) Hardness | GPa | 12 | 5.8 | |||||
Thermal Characters |
Coefficient of linear thermal expansion | 20℃~800℃ ×10-6mm/℃ | 6.3~7.3 | 6.4~7.4 | 6.5~7.5 | 6.8~7.8 | 8.0 | |
Thermal Conductivity | W/(m.K) | 12 | 16 | 20 | 23 | 2 | ||
Electrical Characters |
Dielectric constant(1MHz) | — | 9~10 | 9~10 | 9~10 | 10 | 7.5 | |
Dielectric loss angle | ×10-4 | ≤6 | ≤5 | ≤4 | ≤3 | 8 | ||
Dielectric Strength | KV/mm | 15 | 20 | 24 | 28 | 18 | ||
Metalized Ceramics |
Gas leakage coefficient | Pa.m3/s | ≤10-8 | - | ||||
Volume resistivity | Ω.cm | ≥1015 | - | |||||
Combined strength | MPa | ≥120 | - | |||||
Thickness of Metal | μm | ≥20 | - | |||||
Company Description
Changsha Ultronic Ceramic Technology Co., Ltd. is located in Changsha City, the capital of Hunan Province. Since its establishment in September 2010, Ultronic has been devoted to manufacturing alumina ceramics and steatite ceramics for electric components and industrial ceramics. Now, we have the forming technologies of hot pressing, dry pressing, injection molding, tape casting, and isostatic pressing. We also have the special process of surface metallization, glazing, and polishing. Our main products include ceramic thermostat housing, ceramic rod, metalized ceramic GDT tube, faucet cartridge ceramic disc, ceramic insulating plate and so on. And we supply to leading companies in respective business, such as and so on.
We have below product categories
Ceramic Substrate
Zirconia Ceramic
Steatite Ceramic Parts
Ceramic Pin/Rod
Ceramic Tube/Ring
Ceramic Lamp Holder
Thermostat Ceramic Parts
Ceramic Faucet Cartridge Discs
Metalized Ceramic Parts