Loading Port:Guangzhou
Payment Terms:TT OR LC
Min Order Qty:100 pc
Supply Capability:10000 pc/month
Product Description
Zirconia is an extremely refractory material. It offers chemical and corrosion inertness to temperatures well above the melting point of alumina. The material has low thermal conductivity. It is electrically conductive above 600° C and is used in oxygen sensor cells and as the susceptor (heater) in high temperature induction furnaces. With the attachment of platinum leads, nernst glowers used in spectrometers can be made as a light emitting filament which operates in air.
Properties of Industrial Ceramic Pump Sleeve
(1). Excellent in electrical insulation;
(2). High hardness and wear/corrosion resistance;
(3). High working temperature;
(4). Good thermal shock resistance;
Key Properties of Zirconium Oxide
Use temperatures up to 1000° C
- High density
- Low thermal conductivity (20% that of alumina)
- Chemical inertness
- Resistance to molten metals
- Ionic electrical conduction
- Wear resistance
- High fracture toughness
- High hardness
Typical Uses of ZrO2
- Precision ball valve balls and seats
- High density ball and pebble mill grinding media
- Rollers and guides for metal tube forming
- Thread and wire guides
- Hot metal extrusion dies
- Deep well down-hole valves and seats
- Powder compacting dies
- Marine pump seals and shaft guides
- Oxygen sensors
- High temperature induction furnace susceptors
- Fuel cell membranes
A wide variety of purity grades from 60% up to 99.7% pure of Aluminium oxide are available on the market. Typical grades that are used for modern industrial applications are of high purity from 95% to 99.7% Amongst the various advanced ceramics that exist today, alumina is the most commonly used ceramic materials that has a wide range of properties and a very competitive cost due to high tech of manufacturing techniques.
Properties of Aluminium Oxide
- Good mechanical strength under compressive loading
- Electrical insulation
- Hardness and excellent wear resistance
- Corrosion resistance to acid, gas, chemical etc.
- Excellent dielectric for direct Amp and microwaves application
- Law dielectric constant
Applications of Aluminium Oxide
- Excellent electric insulator products
- Sand and shot blasting nozzles
- Mig. & Tig. Welding shield and nozzles for laser cutting guns
- Various type of tubes with single hole to multy core/ hole cavities
- Seals for tap water
- Textile wear parts and thread guides
- Piston and sleeves for water pumps and chemical pumps
- Corrosion resistance components
Data Sheet
Characteristics | Unit | 95 Al2O3 | 99 Al2O3 | ZrO2 | GPSi3N4 | BN | Glass Ceramic |
Crystal Structure | - | hexagonal | hexagonal | tetragonal | hexagonal | hexagonal | - |
Color | - | white | ivory | white | gray | white | white |
Density | g/cm³ | 3.65 | 3.88 | 5.95 | 3.22 | 2.26 | 2.55 |
Water Absorption | % | 0 | 0 | 0 | 0 | 0.0-1.0 | 0 |
Young's Modulus | Gpa | 280 | 350 | 205 | 295 | 670 | 65 |
Vickers Hardness | Gpa | 14 | 20 | 12 | 18-20 | - | - |
Flexural Strength | Mpa | 280 | 300 | 900 | 650 | 51 | 100 |
Compressive Strength | Mpa | 2000 | 2500 | 2200 | 2200 | 230 | 500 |
Thermal Conductivity | W/(m•K) | 18-25 | 30 | 2.2 | 25 | 20 | 1.70 |
Thermal shock resistance | ΔT(C°) | 220 | 180-200 | 280-350 | 450-650 | >1500 | 25-100 |
Max. Working Temperature | C° | 1500 | 1700 | 850 | 1200 | 960 | 800 |
Volume Resistivity | Ω . cm | >10^15 | >10^14 | >10^12 | >10^14 | 10^13 | 10^16 |
Dielectric Constant | - | 9.50 | 9.80 | 26 | 8.20 | 4.08 | 6.02 |
Dielectric Strength | kV/mm | 16 | 22 | - | 16 | 375 | 40 |
FAQ
We have organized several common questions for our clients, may help you sincerely:
- Good mechanical strength under compressive loading
- Electrical insulation
- Hardness and excellent wear resistance
- Corrosion resistance to acid, gas, chemical etc.
- Excellent dielectric for direct Amp and microwaves application
- Law dielectric constant
- Excellent electric insulator products
- Sand and shot blasting nozzles
- Mig. & Tig. Welding shield and nozzles for laser cutting guns
- Various type of tubes with single hole to multy core/ hole cavities
- Seals for tap water
- Textile wear parts and thread guides
- Piston and sleeves for water pumps and chemical pumps
- Corrosion resistance components