Alumina Insulator Max 1800degree High Temperature heat Resistance
Al2o3 Ceramic Insulator
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High Temperature heat Resistance Al2o3 Ceramic Insulator is widely used for nuclear, microwave high vacuum insulation, high
precision magnetism-free skeleton for aeronautic and astronautic
electrical devices, ultra-high voltage insulation for electric
motors and structural parts at strong erosion
environments. In terms of machinability, it can take place of
aluminum oxide and boron nitride ceramics that are difficult to
machine.
Alumina Ceramic can be made by different purities like 95%, 96%,
99%, 99.5%, 99.7% etc, their properties will have little difference
accordingly.
Typical properties
●Good strength and stiffness
●Good hardness and wear resistance
●Good corrosion resistance
●High thermal conductivity
●High temperature resistance
●Electrical insulation
●Low dielectric constant
| Performance |
| Item | Index | Unit | Steatite ceramic | 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 |
| Linear expansion coefficient | 20-500 0 C 10 -6 / 0 C | 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(1MHZ) | - | 6.2 | 9 | 9.4 |
| Dielectric loss angle | *10 -4 | 18 | 15 | 5 |
| Dielectric strength | *10 6 V/m | 18 | 12 | 15 |
The high temperature ceramic have best heat properties for ceramic
component parts.
Ceramic materials for ceramic components generally have high
melting point (mostly above 2000℃) and excellent chemical stability
and best insulation at high temperature.Ceramic thermal
conductivity for ceramic parts is lower than metal materials, and a
good thermal insulation material.At the same time, the linear
expansion coefficient of ceramics is lower than that of metals.
When the temperature changes, ceramics component parts have good
dimensional stability.
Ceramic components have a best ceramic propertied performace with
high hardness, high strength, high temperature resistance, high and
low temperature impact performance, low coefficient of thermal
expansion, low temperature creep, good oxidation resistance, good
thermal corrosion performance, low friction coefficient and many
other excellent performance.
Delivery:
Custom OEM will be shipped within 15 days after determining the
parameters
The samples will be shipped within 3 days
Quick Delivery Via Fedex,DHL,UPS,TNT Etc.
Support customer to designate shipping company
For more informations (the price,delivery time,moq etc)about the
ceramic plates, please contact us or email:admin@cerampart.com
CEO: Admin deng
Dongguan Mingrui Ceramic Tech. Co. Ltd.
Add: No.21 Chuangxing Rd., 2nd Industrial Zone of Shangsha,
Chang'an town, Dongguan city, Guangdong, China 523867
Email: admin@cerampart.com
FAQ
1. Monthly Capacity: 50,000-60,000 pcs;
2. Material: OEM or as per your suggestion;
3. Lead time: about 7-20 days, pls confirm the quantities required;
4. Incoterm: FOB, CFR, CIF;
5. Delivery Cost: It is determinated by the destination port;
6. Payment Term: PayPal; T/T; L/C.
7. Shipment: by sea, by air, by courier, by post, etc.
