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XTL sintyron high quality 99% Semiconductor alumina ceramic ring insulation ceramic gasket

Alumina ceramic ring has high hardness, excellent wear resistance, corrosion and high temperature resistance, good self-lubrication, and is not easy to scale. Alumina ceramics are the most common advanced precision ceramic materials, but also relatively traditional materials. As an excellent ceramic material, high purity alumina ceramics have been widely used in many industries. The material has excellent properties in terms of electrical insulation, high thermal conductivity, high chemical resistance, good wear resistance and low thermal expansion. Alumina is widely used in the aerospace field, with high strength, high temperature resistance, oxidation resistance, corrosion resistance and many other properties. Alumina can be prepared into high temperature and heat resistance, used in space shuttle insulation tiles and flexible insulation materials. In the field of high temperature industrial furnaces, alumina is mainly used as insulation and refractory materials, because it has the advantages of low density, good heat insulation, and small heat capacity.

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XTL sintyron high quality 99% Semiconductor alumina ceramic ring insulation ceramic gasket

Ceramic gasket ring is a high thermal conductivity material, mainly composed of alumina (alumina content of more than 96%), the appearance is pure white, hard texture, mainly used for heat transfer and electrical isolation between the power device and the radiator.

Physical characteristics:

Test item   alumina
index unit AL997 AL99 AL95
Principal component content N/A 99.70% 99% 95%
Color N/A ivory white ivory yellow White
Gas permeability N/A airtight airtight airtight
density g/cm3 3.9 3.8 3.7
hardness Moh's hardness 9 9 8.8
Water Absorption N/A ≤0.2 ≤0.2 ≤0.2
Bending strength (20°C) Mpa 375 340 304
Compressive Strength (20°C) Mpa 2300 2210 1910
Coefficient of thermal expansion (25°C to 800° C) 10X6/° C 7.6 7.6 7.6
Insulation strength (5mm thickness)  AC-kv/mm 10 10 10
Dielectric loss 25°C lMHz  N/A v0.0001 0.0006 0.0004
dielectric constant 25°C MHz  N/A 9.8 9.5 9.2
Volume resistivity (20°C) (300°C) (500 °C) Ω.cm3 >1014 >1014 >1014
2X1012 4X10" 2X10"
Long-term service temperature 1700 1600 1400
Thermal conductivity (25° C) W/m/K 35 34 20

Alumina Ceramic gasket ring Information:

Product alumina ceramic gasket ring
Material alumina 
Purity 99%
Color light yellow
Shape Round
Density 3.5g/cm3

Alumina ceramic plate Information:


Product alumina ceramic plate
Material alumina 
Purity 99%
Color light yellow
Shape Round
Density 3.5g/cm3

Feature of alumina ceramics:

1.Alumina ceramic ring has excellent mechanical strength, high temperature resistance, wear resistance, corrosion resistance, good insulation performance, durable. 95/96/99 Alumina zirconia ceramic rod, wear resistance and high temperature resistance, good toughness, high density, used in resistance and other aspects of the resistance ceramic rod. It has the advantages of long life, energy saving, environmental protection, safety and controllability.

2.It has excellent electrical function at high frequency, and its medium loss is small, volume resistivity is large, strength is high, hardness is high, linear expansion coefficient is small, and wear resistance and heat resistance are also good. It is more economical and practical to use 95% alumina ceramics in general occasions. On the occasion of particularly high functional requirements, 99% ~ 99.9% alumina porcelain is selected.

Advantages of alumina ceramics:

1.Dimensional and thermal stability, high performance characteristics, hydrolysis resistance, self-lubrication, extended service life, reduced downtime and cost, low moisture content, noise reduction

Application  of alumina ceramic disc:

1, used in chemical industry (iodine)

2, environmental protection, petroleum industry, gas industry

3, can be used for distillation and absorption of liquids and gases, atmosphere

4, vacuum distillation device, crude oil distillation device

5, desulfurization system, gas-liquid separator/liquid separator, etc

In Stock Thermal Analysis High Purity Alumina Ceramic Crucible

Company Information:

In Stock Thermal Analysis High Purity Alumina Ceramic Crucible


Why us?
* Professional manufacturer since 1997.
* Strict quality control on production process and tolerance.
* Free samples available
* Customized production based on your drawing or specification
* On-time delivery and reliable support and service
* Inventory available for quick shipment
* We keep confidentiality of all the drawings and business information between us.
Are you a trading company or a manufacturer?
* We are a manufaturer. 
Can you provide the free samples?
* Yes,we can offer free sample if we have it in stock,but the courier fee is to be collected.
Do you accept customized production based our specification?
* Yes,we offer OEM and ODM service. Just send us your drawing if you have it. If you don’t have a drawing, just tell us your idea, we will work out the drawing for you.

What's the delivery time?
* 7 working days for standard products 30 days for customized products. 
What is the MOQ?
* No limit to the quantity. We can offer the best proposal and solutions according to your condition.
What is the payment terms you accept?
* T/T,LC,Western Union,moneygram are acceptable.
How to deal with the faulty?
* Firstly, Our product are produced in strict quality control system and the defective rate will be less than 2%.
If there are problems with the product, we will provide free replacement.

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