1. Alumina disks have excellent thermal stability, high durability, wear resistance, and impact resistance.
2. It has chemical inertness and electrical insulation properties.
3. Accept customized sizes.
4. Large stock and fast delivery.
The advantages of alumina disks lie in their unique material combination: extremely high hardness (wear-resistant), high rigidity (stable), excellent high-temperature and corrosion resistance, low thermal expansion (good thermal stability), and excellent electrical insulation. These properties make alumina disks an irreplaceable choice in applications requiring high precision, high wear resistance, high stability, and the ability to withstand harsh environments (high temperature, corrosion).
Applications of Alumina Disks
1. Semiconductor Manufacturing: Alumina disks are used as substrates or support components in semiconductor production, where high thermal and electrical insulation properties are critical.
2. Electrical and Electronic Components: Due to their insulating properties, alumina disksare widely used in electronic devices, such as in the production of circuit boards, sensors, and other electronic components.
3. Chemical and Petrochemical Industry: Their corrosion resistance makes alumina disks suitable for use in chemical processing equipment and as protective components in harsh chemical environments.
4. High-Temperature Furnaces: Alumina disks are employed in kilns, furnaces, and other high-temperature equipment as thermal barriers or insulation materials.
5. Medical Equipment: Alumina's biocompatibility makes it a material of choice in medical applications, such as in prosthetic devices and laboratory equipment that requires sterilization at high temperatures.
6. Aerospace and Defense: Alumina disks are utilized in aerospace and defense industries where materials must perform under extreme temperatures, mechanical stress, and corrosive conditions.
Alumina plates series
Square plates/Discs/Substrates/Lids
Size,Performance index
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
Our factory
Slip casting moulding: Inject the prepared slurry into the gypsum mold and let it stand for a period of time to allow the gypsum mold to absorb moisture. The slurry forms a uniform body on the inner wall of the mold.
Injection moulding: Inject a slurry containing paraffin into a metal mold at a certain temperature and pressure, and after the body cools and solidifies, perform demolding to prepare ceramic bodies.
Extrusion moulding: Suitable for long tube products, the powder is extruded into shape through an extruder.
FAQ
Q1. What information should we supply to get a quote?
A1. Please offer the specification of alumina ceramic tray, such as shape, dimension, quantity, application etc.
Q2: Are you trading company or manufacturer?
A2: We are factory.
Q3: How long is your delivery time?
A3: Generally it is 5-10 days if the goods are in stock. Or it is 15-30 days if the goods are not in stock, it is according to quantity.
Q4: Do you provide samples? Is it free or extra?
A4: Yes, we could offer the small sample for free charge but do not pay the cost of freight.
Certificates
The company is certified with ISO9001, SGS and German DIN certifications.
Feedback
1. If you have any questions or questions, please contact us and we will communicate with you as soon as possible.
2. For any other satisfaction, please also feedback to us to make our service better and better.
