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Wearable Corrosion Resistance 95% 99% Al2O3 Alumina zirconia Ceramic Impeller

Alumina ceramic impeller comprises: impeller body, impeller body is provided with a flow port, impeller body is provided with a limited position ring groove in the middle of the upper surface, limit ring groove is provided with a fixed hole in the middle, limit ring groove in the bottom surface is provided with a rough surface, the utility model has the following advantages: through the positioning slot in the limit ring groove between the connecting rod and the impeller body mutually fixed, through The rough surface is convenient to strengthen the friction between the limit ring groove and the connecting rod, and strengthen the bite force between the connecting rod and the impeller body; The friction between the connecting rod and the impeller body is avoided through the protection layer of the inner side wall of the fixed hole; The adsorption cotton layer is convenient for the adsorption of water in the air flow, avoid the flow port inner wall contaminated with water, causing corrosion to the impeller body; The guide groove is convenient to guide the air flow, prevent the air flow in the flow mouth impact the side wall, but also avoid the air flow impact to make the impeller body vibration.

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Alumina zirconia Ceramic Impeller

Features of alumina ceramic

Relatively low density;
* Extremely high operating temperature;
* Very high hardness and compressive strength;
* Excellent electrical insulation properties;
* Corrosion and wear resistance;
* Biologically inert, food compatibility。

Alumina Ceramic Properties

The following only lists the performance parameters of the three most common aluminum oxide ceramics. Normally, alumina ceramics
are composed of these types.

Mechanical Properties

Properties Unit 95%Al2O3 99%Al2O3 99.5%Al2O3
Colour —— White Yellow Yellow
Density g/cm³ 3.7 3.85 3.9
Hardness GPa 13.7 15.2 15.7
Compressive Strength MPa 2000 2160 2350
Flexural Strength MPa 280 310 350
Fracture Toughness MPa・m1/2 3~4 3~4 4.5
Modulus of Elasticity GPa 320 360 370
Poissons Ratio —— 0.23 0.23 0.23

Thermal Properties

Properties Unit 95%Al2O3 99%Al2O3 99.5%Al2O3
Maximum Use Temperature ℃(No load) 1650 1650 1650
Thermal Conductivity @ 20°C W/(m・K) 24 29 32
Thermal Expansion a at 20–400°C 1 x 10-6/°C 7~8 7~8 7~8
Specific Heat J/(kg・K) 780 790 780
Thermal Shock Resistance ℃(Put in water) 200 200 200

Electrical Properties

Properties Unit 95%Al2O3 99%Al2O3 99.5%Al2O3
Dielectric Constant 1MHz 9.4 9.9 9.9
Dielectric Strength V/m 15 x 10 6 15 x 10 6 15 x 10 6
Dielectric Loss 1MHz 4 x 10 -4 4 x 10 -4 4 x 10 -4
Volume Resistivity @ 25°C Ω・cm >10 14 >10 14 >10 14
Volume Resistivity @ 500°C Ω・cm >10 8 >10 8 >10 10


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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