Alumina plates
- yunxing
- china
- According to the quantity ordered
- 3000-5000/month(Looking for distributors)
Alumina plates has high temperature and heat resistance
The alumina plates has high strength, excellent corrosion resistance, acid and alkali resistance, and other superior properties.
Alumina plates
At Jinzhou Yunxing Industrial Cramic Compang, we understand the importance of delivering top-quality products that meet the unique needs of our customers. That's why our 99.3% Alumina plates stands out among the competition. Boasting exceptional hardness and high melting point, this alumina plates guarantees outstanding performance even in the harshest environments. Its high mechanical strength ensures durability, making it an ideal choice for applications that demand robust materials.
Alumina plates advantage
Alumina plates has high temperature and heat resistance
The alumina plates has high strength, excellent corrosion resistance, acid and alkali resistance, and other superior properties.
The thermal shock resistance and low coefficient of thermal expansion of alumina plates are also major advantages.
Alumina plates have good thermal stability performance.
Alumina plates not only have low expansion but also low dielectric constant (5.3MHz).
Alumina plates application
1. Alumina plates are widely used in kiln utensils.
2. Alumina plates can be used to make induction heating elements (such as microwave oven gaskets)
3. Alumina plates is suitable for high-temperature fixtures
4. Alumina plates can be used to make resistance coils.
Alumina plates series:
Square plates/Discs/Substrates/Lids
Alumina ceramic performance index (Notice of Correct in Leakeage Rate）
NO. | Property | Unit | Alumina |
1 | Al2O3 | % | >99.3 |
2 | SiO2 | % | — |
3 | Density | g/cm3 | 3.88 |
4 | Water absorption | % | 0.01 |
5 | Compressive strength | MPa | 2300 |
6 | 20℃ leakage rates | Torr・L/sec | >10-11=1.33322×10-12Pa・m3/sec |
7 | Twisting in high temperature | mm | 0.2 allowed in 1600℃ |
8 | Bonding in high temperature | not bonded in 1600℃ | |
9 | 20—1000℃ coefficient of thermal expansion | mm.10-6 ／℃.m |
8.2 |
10 | Thermal conductivity | W/m.k | 25 |
11 | Electric insulation strength | KV/mm | 20 |
12 | 20℃direct current insulation resistance |
Ohm/cm |
1014 |
13 | High-temperature insulation resistance | 1000℃ MΩ | ≥0.08 |
1300℃ MΩ | ≥0.02 | ||
14 | Thermal shock resistance | 4 times not cracked in 1550℃ | |
15 | Maximum working temperature | ℃ | 1800 |
16 | Hardness | Mohs | 9 |
17 | Flexural strength | Mpa | 350 |
FAQ
1.What is the difference between ceramic and alumina?
Ceramics are non-metallic, inorganic materials that are typically composed of a combination of metallic and non-metallic elements. Alumina is a type of ceramic oxide, specifically an oxide of aluminum. It is widely used in various applications due to its excellent mechanical, thermal, and electrical properties.
2.What is alumina ceramic used for?
Everything You Need to Know about Alumina Ceramics
Because of their excellent chemical stability, alumina ceramics are used widely in acid-resistant pump impellers, pump bodies, acid-carrying pipe linings and valves. Aluminum oxide ceramics are used in the manufacture of textile wear parts and knives. This is due to their extreme hardness and wear resistance.
3.Is alumina ceramic hard?
Alumina is a very hard ceramic that is excellent at resisting abrasion and is ideal for wear-resistant inserts or products.
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