High-Quality Alumina Crucibles | Advanced Ceramic Materials

AC0925 Alumina Crucible, Aluminum Oxide Crucible, Al2O3

Catalog No. AC0925

Material Al2O3

Purity 99%, 99.8%

Density 3.8~3.9 g/cm3

Alumina Crucible Description

Alumina Crucibles from Advanced Ceramic Materials are crafted from high-purity aluminum oxide, a ceramic material renowned for its exceptional thermal conductivity, compressive strength, high-temperature resistance, and thermal shock resistance. With low thermal expansion, alumina is ideal for furnace use in crucibles, tubes, and thermocouple sheaths. Additionally, its high hardness and wear resistance make it suitable for applications such as ball valves, piston pumps, and deep drawing tools. Alumina can also be easily combined with metals and other ceramics using brazing techniques and metalizing.

Alumina Crucible Specifications

Composition	AL97	AL98
AL2O3 Content	97%	99.80%
Color	White	Ivory
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
Dielectric Constant	9.5	9.8
Volume Resistivity	>10^14 Ohm-cm	>10^15 Ohm-cm
Dielectric Strength	16 KV/mm	20 KV/mm

*This chart demonstrates the typical properties of common alumina materials used in our alumina parts production. Customized aluminum oxide parts' properties may vary due to different processes. Advanced Ceramic Materials (ACM) can produce Al2O3 products under specified instructions or to meet customer requirements.

Alumina Crucible Applications

Alumina crucibles are used in various applications, including:

Semiconductor Industry: Parts for CVD, ion implants, photolithography, and other semiconductor parts.
Traditional Industries: Ideal for injector tubes, gas nozzles, and insulators.
Industrial Furnaces: Maintains hardness at high temperatures, making it perfect for industrial furnaces.
Thermocouple Protection: Acts as a protector for high-temperature thermocouples.
Chemical Industry: High corrosion resistance makes it suitable for chemical processing equipment.

Packaging

Our high-purity aluminum oxide crucibles are carefully handled to prevent damage during storage and transportation and to preserve the quality of our product in its original condition.

Frequently Asked Questions (FAQs)

What is the maximum temperature these crucibles can withstand?
- Our alumina crucibles can withstand temperatures up to 1800°C.
Do you offer custom sizes and shapes?
- Yes, we offer custom sizes and shapes to meet specific requirements. Please contact us for more details.
What is the purity level of the alumina used in these crucibles?
- The alumina used in our crucibles has a purity level of 99.5%

Ordering Information

Order alumina crucibles in the desired size and quantity. For bulk orders or custom requirements, please contact us for more details.