AC0925 Alumina Crucible, Al2O3 Ceramic

Catalog No. AC0925
Material Al2O3
Purity 99%, 99.8%
Density 3.8~3.9 g/cm3

Alumina crucible is a type of aluminum oxide ceramic products. SAM provides alumina ceramic products with high purity, tight dimensional tolerance, and competitive prices. All types of crucibles including MBE alumina crucibles and customized products are available.

Related products: Alumina Mortar and Pestle Set, Alumina Plate, Alumina Custom Parts

Alumina Crucible Description

Alumina crucible is a ceramic product with high thermal conductivity, compressive strength, and thermal shock resistance. It also has a low thermal expansion, making it a suitable material for furnace use in the crucible, tube, and thermocouple sheath form. Alumina has high hardness and good wear resistance, making it a suitable material for ball valves, piston pumps, and deep drawing tools. In addition, it can be easily combined with metals and other ceramic materials using brazing techniques and metalizing. Alumina crucibles can be used under high temperature and do not contaminate most molten metals. 

Alumina Crucible Specification

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 3.70 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. 7.7 In / In°C (x107) 7.8 In / In°C (x107)
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

Alumina Crucible Applications

• Making parts for CVD, ion implants, photolithography, and semiconductor parts.
• Ideal for products such as injector tubes, gas nozzles, and insulators in traditional industries.
• Material for industrial furnaces.
• Protector for high-temperature thermal couples.
• Material for the chemical industry due to its high corrosion resistance.

Alumina Crucible Packaging

Our Alumina crucibles are carefully handled to prevent damage during storage and transportation and to preserve the quality of our products in their original condition. 

Prototyping service also available for other ceramics material

Boron Nitride
Pyrolytic boron nitride
Silicon Carbide (98% 99.5%)
Silicon Nitride

Boron Carbide



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