
1.Description
Alumina ceramic is a kind of structural ceramics, with insulation resistance, voltage resistance, high strength, good thermal conductivity, dielectric loss, stable electrical performance characteristics. Used in electronic ceramic substrates, ceramic electrical insulation, vacuum devices, devices porcelain, spark plugs and other products.
2.Feature:
Alumina Ceramic Performance | |||||
Item | Unit | 95 Al2O3 | 96 Al2O3 | 99 Al2O3 | |
Physical Characteristics | Heat resistance | ℃ | 1500 | 1550 | 1800 |
Bulk dnsity | g/cm³ | 3.6 | 3.6 | 3.9 | |
Water absorption | % | 0 | 0 | 0 | |
Mechanical Characteristics | Flexural strength | Mpa | 320 | 340 | 360 |
Hardness vickers | Gpa | 12.2 | 13.5 | 15.6 | |
Elastic mdulus | Gpa | 280 | 320 | 370 | |
Poisson'radio | 0.22 | 0.23 | 0.23 | ||
Thermal Characteristics | Linear expansion coeffcient | (20-500℃)10^-6/℃ | 7.1 | 7.2 | 8 |
Thermal conductivity | w/(m.k) | 16 | 24 | 32 | |
Specific heat | *10^-3(kg*K) | 0.78 | 0.78 | 0.9 | |
Electrical Characteristic | Dielectric constant(1MHZ) | - | 9 | 9.4 | 9.9 |
Dielectric loss angle | *10^-4 | 15 | 5 | 1 | |
Dielectric strength | *10^6V/m | 12 | 15 | 15 |
We can supply the products according to customer's drawings, samples and performance requirement.
Quality assurance:
1. High heat resistance : Alumina ceramic has excellent thermal
stability,which means that it is widely used in areas where
resistance to high temperatures is essential.
2. Good wear resistance : Alumina ceramic is the material of choice
for alumina wear parts.
3. High corrosion resistance : It is insoluble in water and only
slightly soluble in strong acid and alkaline solutions. Good
chemical stability of alumina leads to high corrosion resistance.
Yixing City Kam Tai Refractories Co.,ltd
Yixing City Kam Tai Refractories Co.,ltd is located in Yixing, the
Pottery capital of China. Our company is founded in 2006, it is a
professional refractory and ceramic company which cover research,
production, sales and after-sales service. Since establishment, we
adhere to principle of “Technological Innovation, Never Stop”,
continuously improve R&D and production process and equipment.
Moreover, we cooperate with famous university such like Liaoning
University of Science and Technology, Beijing University of Science
and Technology.
Main Products
We mainly manufacture industry furnace refractory material such as
Sic PLATE,Setter plate, Push plate, Pillar,Sagger, Technical
Ceramic, Furnace material and so on. Our product is widely used to
sinter Magnetic Material, Electronic Ceramic, Daily Ceramic, Powder
Metallurgy, Rare Earth Battery Material and so on. Our sandwich
setter plate, electronic ceramic used sagger, Lithium battery
cathode material sintering sagger are very good , and they have
been leader products in our field .
Company Vision
Since our establishment, we insist on “No best , Just Better” , aimed to be the top Supplier of Refractory material and Technical Ceramic in the world.