An alumina crucible is a small, cup-shaped container made of alumina ceramic material, also known as aluminum oxide (Al2O3). Alumina is a highly durable and heat-resistant material that is widely used in various industrial applications, such as electrical insulation, refractory lining, and high-temperature processing.
Alumina crucibles are typically produced through a process of shaping and sintering of alumina powder, resulting in a dense and uniform ceramic structure. They can vary in size, shape, and surface finish depending on the intended use and application.
Alumina crucibles have excellent mechanical and electrical properties, including high strength, hardness, and thermal conductivity. They are also resistant to chemical corrosion, making them suitable for use in harsh and corrosive environments.
Overall, alumina crucibles are a reliable and versatile material that offer excellent performance and longevity in a variety of high-temperature and corrosive environments. They are widely used in industrial, scientific, and research settings for their exceptional properties and durability.
|Purity||95% 99% 99.7%|
At CG Material, we offer high quality Alumina Crucible with exceptional purity and precision in terms of size. Our products range in diameter from 1mm to 100mm and have a purity level of up to 99.8%. We also provide custom manufacturing options for special shapes to meet specific needs.
Alumina Crucible Specifications
|Tensile||30 Kpsi||32 Kpsi|
|Flexural||55 Kpsi||60 Kpsi|
|Compressive||300 Kpsi||330 Kpsi|
|Density||3.7 g/cc||3.92 g/cc|
|Hardness||13.8 HV, Gpa||18 HV, Gpa|
|Thermal Conductivity||25 W/(m K)||32 W/(m K)|
|C.O.T.E.||77 In / In°C (x10^7)||78 In / In°C (x10^7)|
|Working Temperature||1500 °C||1750 °C|
|Volume Resistivity||>10^14 Ohm-cm||>10^15 Ohm-cm|
|Dielectric Strength||16 KV/mm||20 KV/mm|
*This chart just demonstrates the typical properties of common alumina materials we use to produce our alumina parts. Please notice that the property for customized aluminum oxide parts could vary due to different process. CG Material could provide Al2O3 products produced under your specified instruction or do the best to meet customers’ requirements.
Alumina Crucible Applications
Aluminum oxide crucible is used in the following applications:
• Used for making parts for CVD, ion implants, photolithography, and semiconductor parts.
• In traditional industries, alumina ceramics are ideal for products such as injector tubes, gas nozzles and insulators.
• Used as a material for industrial furnaces due to its ability to maintain its hardness at high temperatures.
• Used as protector for high temperature thermal couples.
• Used as a material for chemical industry due to its high corrosion resistance.
We handle our products with care to ensure they remain in their original condition during storage and transportation and to preserve their quality.