High Purity 95% 99% 99.5% 99.7% Al2O3 Aluminium Oxide Alumina Ceramics
Specification:
*Good thermal conductivity
*Good strength and hardness
*Good resistance to wear and corrosion
*Temperature resistance up to 1700°C
Product Description
Material introduction:
Aluminium Oxide, Al2O3 is the most widely applied and cost effective technical ceramic material. It offers a combination of superior mechanical strength and electrical properties, wear resistance and corrosion resistance. The maximum working temperature is up to 1700 °C with relatively high thermal conductivity. It is also an electrically insulating material with a high electrical resistivity. The good corrosion resistance makes it insoluble in water and slightly soluble in strong acid and alkaline solution.
Available shapes:
Our Alumina Ceramic products can be made into different shapes like ceramic rods, ceramic bars, ceramic tubes/tubings, ceramic bushings/ceramic bushing, ceramic sleeves, ceramic seal rings, ceramic washers, ceramic ball valves, ceramic pistons, ceramic disks, ceramic plates/sheets/substrates or other customized shapes.
According to actual application and customer's requirement, the purities vary from 95%-99.7% and the forming methods will be different. The forming methods applied in our plant include dry pressing, isostatic pressing, injection moulding, extrusion moulding. With experienced engineers and talented workers, we are confident to offer high quality, high precision, complex components for customers worldwide.
ATERIAL PROPERTIES
| Unit | 95% Al2O3 | 99% Al2O3 | ZrO2 | GP-Si3N4 |
Color | - | white | ivory | white | gray |
Density | g/cm³ | 3.65 | 3.88 | 5.95 | 3.22 |
Water Absorption | % | 0 | 0 | 0 | 0 |
Young's Modulus | Gpa | 280 | 350 | 205 | 295 |
Vickers Hardness | Gpa | 14 | 20 | 12 | 18-20 |
Flexural Strength ( at R.T. ) | Mpa | 280 | 300 | 900 | 650 |
Compressive Strength ( at R.T. ) | Mpa | 2000 | 2500 | 2200 | 2200 |
Thermal Conductivity ( at R.T. ) | W/(m.K) | 18-25 | 30 | 2.2 | 25 |
Thermal Shock Resistance | ΔT(°C) | 220 | 180-200 | 280-350 | 450-650 |
Max. Working Temperature ( at R.T. ) | °C | 1500 | 1700 | 850 | 1200 |
Volume Resistivity ( at R.T. ) | Ω.cm | >10^15 | >10^14 | >10^12 | >10^14 |
Dielectric Constant (1 MHz at R.T. ) | - | 9.50 | 9.80 | 26 | 8.20 |
Dielectric Strength | kV/mm | 16 | 22 | - | 16 |
Wire and thread guides | - Ballistic Armor |
- Mechanical seals | - Wear resistant linings |
- Seal faces | - Semiconductor parts |
- Valve seats | - Laser cavities |
- Machine components | - Shot blast nozzles |
- High temperature electrical insulators | - Knife Sharpeners |
- High voltage insulators | - Precision shafts & axles in high wear environments |
- Electronic components & substrates | - Roller & Ball Bearings |
As a professional company in advanced ceramic industries, ZALY is manufacturing and supplying high quality and high precision ceramic components for clients from worldwide. Our ceramic products are widely used in various fields of automotive, metallurgy, machinery, electronic & electrical, food, chemical, medical and so on. With experienced engineers and talented workers, we are able to evaluate projects and drawings properly, make valuable suggestion, supply satisfying products. Our materials including:
- Aluminium Oxide ( 95% 96% 99% 99.5% 99.7% Al2O3 )
- Zirconium Oxide ( Yttria stabilized ZrO2 )
- Silicon Nitride ( Gas pressure sintered & Hot pressed Si3N4 )
- Boron Carbide ( B4C )
- Boron Nitride ( Hot pressed BN )
- Machinable Glass Ceramic
Aiming at building long term cooperation relationship with our clients, we set our motto as "Quality First". Far now, our products have been exported to North Amirica, East Europe, West Europe, East Asia, Southeast Asia and get good reputation from our client.
Lianyungang Zhong Ao Aluminium Co. Ltd (AIZA)
Our Products:
Alumina Ceramic Ball
Alumina Ceramic Lining
Alumina Ceramic Cylinder
Alumina Wear Tile
Alumina Ceramic Beads
Alumina Ceramic Nozzle
Alumina Ceramic Ring
Insulation Ceramic
Customized Heterotypic Technical Ceramics
AIZA is a Lianyungang based Sino-Foreign joint venture corporation. It is a Chinese producer of calcined alumina and a manufacturer of alumina ceramics, such as alumina ceramic ball, alumina ceramic cylinder, alumina wear tile, ceramic insulator, ceramic element, ceramic beads, and other insulation ceramics with self-prepared material as well as German and Japanese material.
Since its creation, AIZA has served most of Chinese customers, Nanjing Huade, Zhuzhou Xianghuoju, and Chaozhou Sanhuan, which are eminent manufacturer of spark plug and advanced ceramic in China. Its "TCH" brand calcined alumina is well accepted by our customers.
In 2008, AIZA purchased 70 key equipment from Shanghai Morgan Matroc after its closure in China. The equipment includes isostatic press machine, dry press machine, hot press cast machine, ball mill, alumina spray prilling tower (centrifugal and pressure), polishing machine, etc. The equipment has been successfully installed in our factory by the end of 2008. Now, AIZA have succeeded in establishing itself as sole Chinese manufacturer of ceramic nozzle by isostatic dry bag pressing process. Besides, the most experienced technical engineer of former Shanghai Morgan Matroc also joined us, which is the precious source of our confidence of ensuring products quality.
TQC Procedures and ISO 9001: 2000- Certification
Our experienced QC will supervise the production and check the quality before delivery. We conduct TQC procedures according to ISO 9001: 2000-certified guidelines. In order to ensure better quality, we carry out five processes below:
1. Material inspection
2. Semi-manufactured goods inspection
3. Itinerary inspection
4. Finished products inspection
5. Shipment inspection.
Material Adopted:
Alumina
Zirconia
Steatite
Alumina-Zirconia
Technologies Adopted:
Dry Pressing
Isostatic Pressing
Heat Press Cast
Flowchart of Customized Service: Drawing Received---Researching and Tooling---Sample Collecting and Testing---Sample Accepted---Order Confirming.