Alumina Ceramic for EBG-102 Electron Gun Grid
Alumina Ceramic have a high melting point, high hardness,although mechanical strength is reduced at temperatures above 1000 C. Due to the relatively large coefficient of thermal expansion, thermal shock resistance is reduced. So it is widely used for many mechanical parts which request very high temperature.
Shengda Ceramic provide all kinds of 2, 4, 6 holes alumina ceramic tubes. Also the rings, rods, tubes, plates, inserts, bushing, sleeves, blocks, plunger and so on. Any dimension requirement, please contact us.
Performance | |||||
Item | Index | Unit | Steatite | 95 Al2O3 | 99 Al2O3 |
Physical Characteristics | Bulk density | g/cm 3 | 2.7 | 3.6 | 3.6 |
Water absorption | % | 0 | 0 | 0 | |
Mechanical Characteristics | Flexural strength | Mpa | 145 | 320 | 340 |
Hardness Vickers | Gpa | 5.7 | 12.2 | 13.5 | |
Elastic modulus | Gpa | 120 | 280 | 320 | |
Thermal Characteristics | Poisson's ratio | - | 0.21 | 0.22 | 0.23 |
Expansion coefficient | 10-6/℃ | 7.9 | 7.1 | 7.2 | |
Thermal conductivity | w/(m . k) | 2.5 | 16 | 24 | |
Specific Heat | 10-3 J/ (kg * K) | 0.75 | 0.78 | 0.78 | |
Electrical Characteristics | Dielectric constant | - | 6.2 | 9 | 9.4 |
Dielectric loss angle | *10 -4 | 18 | 15 | 5 | |
Dielectric strength | *10 6 V/m | 18 | 12 | 15 | |
Product Advantages
● Certificates: ISO & SGS
● OEM & ODM: OEM & ODM service is available
● Strict testing procedures :Meeting the requirements of the product design and process, providing reliable testing data.
● Short Delivery time:If less than 1000 pieces, it only takes around 5 days. We also stock some standard-sized products, if you need urgently, we can delivery very soon.
● Best ex-factory price
● Worldwide customers
● Customized according to needs
● Continuous research and development of new products
● Customer service:If you find some quality problem, please contact us, we’ll deal with it as soon as possible.
Our customers have a wide range of processing choices for transportation mode.
Yixing Shengda Refractory Ceramic Co., Ltd, established in 1995, Yixing, China with an area of 4,000 square meters and fixed assets of over 1 million US dollars, is a professional manufacturer of Steatite Ceramic Parts, Alumina Ceramic Parts, Cordierite Ceramic Parts, Ceramic Band Heater Insulators, Ceramic Terminal Block, Thermostat Ceramic Parts, Zirconia Ceramics Parts, Ceramic Heater Plugs, etc.
Shengda Ceramic equipped with CAD/CAXA/Solidworks software to provide professional OEM & ODM service.
Looking forward to co-operating with the customers from all over the world!
