The ceramic bushing have a excellent high temperature resistance performance for the industrical application or ceramic parts which use in special environments. the max use temperature of Alumina ceramic bushing can be up to 1750 ℃,and the zirconia ceramic bushing be up to 1050 ℃. ceramic bushing as a kind of industrical ceramic parts, it’s mostly use for industry parts in difference temperature environment. Ceramic bushing with excellently High temperature ability will help the parts to Extended service time.
The wear and high pressure performance of ceramic bushing:
Ceramic bushing made from advance ceramic materials sush as alumina,zirconia, siliconia etc. The property of the advance ceramic have a better wear and high pressure resistance.so that the ceramic bushing with the wear and high temperature resistance have better performance for the industry parts which used for the connected parts.
Working Advantage:
1.High temperature tolerance
2.Superior corrosion resistance
3.Excellent Wear resistance
4. Outstanding Thermal conductivity
5.Long time servise lifes
· Flexural strength | · Chemical resistance | · Electrical insulation | · Corrosion resistance | · Dielectric strength |
· Wear resistance | · Temperature resistance | · Thermal conductivity | · High voltage | · Hardness... |
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Al 2O 3 |
ZrO2/Y2O3 | ZrO2/MgO | MgO | SiC | Si3N4 Reaction sintered | Si3N4 Hot pressed | ALN |
Physical properties | ||||||||
Density (g/cm3) | 3,9 | 5,9 | 5,75 | 3,58 | 3,2 | 3,27 | 3,29 | 3,26 |
Molecular weight (g/mole) | 102 | - | - | 40,4 | 40,1 | 140 | 140 | 41 |
Maximum service temperature air (°C) | 1700- 1800 | 1500 | 1000 | 2200 | 1500 | 1200- 1500 | 1100- 1600 | 1000- 1800 |
Mechanical properties | ||||||||
Hardness (Mohs) | 9 | - | - | 5,5 | 9 | - | - | 7 |
Modulus of elasticity (GPa) | 300-400 | 200 | 200 | 250-300 | 420 | 170-220 | 280-310 | 318 |
Poisson's ratio | 0,25 | - | - | 0,18 | 0,14 | 0,25-0,26 | 0,27 | 0,25 |
Fracture toughness (MPa.m1/2) | 2-3 | 7-13 | 6-10 | - | 2,5-3,5 | 3,5-5 | 6,1 | 4,5 |
Electrical properties | ||||||||
Dielectric constant | 9-10 | - | - | 9-10 | - | 10 | 10 | 9,2 |
Electrical resistivity at 20°C (Ohm.cm) | >10 14 | 10 13-10 14 | >10 10 | - | 10 2-10 6 | >10 7 | 10 12- 10 15 | >10 14 |
Dielectric strength (kV/mm) | 10-20 | 9 | 2-10 | - | - | - | - | 15 |
Thermal properties | ||||||||
Specific heat (J/K/kg) | 900 | 400-500 | 420 | 870-880 | 750 | 690 | 680-800 | 800 |
Thermal conductivity (W/m/K) at 20°C | 26-35 | 2,2-3,2 | 1,5-2,5 | 40-50 | 63-155 | 9-30 | 15-43 | 180 |
Coefficient of thermal expansion ( 10-6) from 20 to 1000°C | 8-9 | 10-11 | 5-16 | 10-13 | 4-5 | 3 | 3,3 | 4,4-5,3 |
Melting point (°C) | 2050 | 2590 | - | 2800 | 2500 | 1900 | 1900 | 2200 |
Customization & Machining Service: As a ceramic parts manufacturer,us offer a wide of the ceramic specification,and customized&machinables. Get a Quote On Your Customized Now!! or up a files by EMAIL. Our Custom Capabilities: 1.High Purity Martoxid Powder 2.OEM Support, More Than 10 Technicians With 5-Year R&D Experience 3.35000 ㎡workshop, annual output could reach hundred million pieces. 4.All crafts are inspected strictly based on drawings,checked each month. 5.Best Service And Quick Delivery Via Fedex,DHL,UPS,TNT Etc. |
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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;
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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.
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