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 crucible, tube, and thermocouple sheath forms. 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 at high temperatures and do not contaminate most molten metals.
Alumina Crucible Specification
|
Item
|
Unit
|
Al95
|
Al97
|
Al99
|
Al997
|
|
|
AL2O3 Content
|
Wt%
|
95
|
97
|
99
|
99.7
|
|
|
Color
|
-
|
White
|
Ivory
|
Ivory
|
Ivory
|
|
|
Tensile Strength
|
Kpsi
|
32
|
30-40
|
38
|
36
|
|
|
Flexural Strength
|
Kpsi
|
52
|
45-50
|
55
|
54
|
|
|
Compressive Strength
|
Kpsi
|
300
|
~300
|
377
|
350
|
|
|
Density
|
g/cm3
|
3.7
|
3.8
|
3.9
|
3.92
|
|
|
Hardness
|
HV, GPa
|
13.8
|
~14
|
17.2
|
18
|
|
|
Thermal Conductivity
|
W/(m·K)
|
25
|
~25
|
30
|
30
|
|
|
C.O.T.E.
|
In / In°C (x10^-6)
|
7.7
|
7.8
|
7.8
|
7.8
|
|
|
Working Temperature
|
°C
|
1500
|
1600
|
1650
|
1650
|
|
|
Dielectric Constant
|
-
|
9.5
|
9.6
|
9.7
|
9.8
|
|
|
Volume Resistivity (25°C)
|
Ohm-cm
|
>10^14
|
>10^14
|
>10^14
|
>10^14
|
|
*The above product information is based on theoretical data. For specific requirements and detailed inquiries, please contact us. Customized Sizes and shapes are also available, please contact us.
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 products are packaged in customized cartons of various sizes based on the material dimensions. Small items are securely packed in PP boxes, while larger items are placed in custom wooden crates. We ensure strict adherence to packaging customization and the use of appropriate cushioning materials to provide optimal protection during transportation.
Packaging: Bottle, Carton, Wooden Box, or Customized.
FAQs
Q1: What purity levels are available?
A: We offer alumina crucibles in various purities such as 95%, 99%, 99.5%, and 99.7%. Higher purity provides better resistance to corrosion, thermal stress, and contamination.
Q2: What are the common applications?
A: Alumina crucibles are used in:
High-temperature metal and oxide melting
Thermal analysis (e.g., TGA, DTA, DSC)
Chemical and materials research
Glass, ceramic, and powder metallurgy industries
Q3: What shapes and sizes are available?
A: We offer a wide range of crucible shapes including cylindrical, conical, rectangular, and boat types, with capacities ranging from a few milliliters to several liters. Custom designs are also available.
Specification
|
Item
|
Unit
|
Al95
|
Al97
|
Al99
|
Al997
|
|
|
AL2O3 Content
|
Wt%
|
95
|
97
|
99
|
99.7
|
|
|
Color
|
-
|
White
|
Ivory
|
Ivory
|
Ivory
|
|
|
Tensile Strength
|
Kpsi
|
32
|
30-40
|
38
|
36
|
|
|
Flexural Strength
|
Kpsi
|
52
|
45-50
|
55
|
54
|
|
|
Compressive Strength
|
Kpsi
|
300
|
~300
|
377
|
350
|
|
|
Density
|
g/cm3
|
3.7
|
3.8
|
3.9
|
3.92
|
|
|
Hardness
|
HV, GPa
|
13.8
|
~14
|
17.2
|
18
|
|
|
Thermal Conductivity
|
W/(m·K)
|
25
|
~25
|
30
|
30
|
|
|
C.O.T.E.
|
In / In°C (x10^-6)
|
7.7
|
7.8
|
7.8
|
7.8
|
|
|
Working Temperature
|
°C
|
1500
|
1600
|
1650
|
1650
|
|
|
Dielectric Constant
|
-
|
9.5
|
9.6
|
9.7
|
9.8
|
|
|
Volume Resistivity (25°C)
|
Ohm-cm
|
>10^14
|
>10^14
|
>10^14
|
>10^14
|
|
*The above product information is based on theoretical data. For specific requirements and detailed inquiries, please contact us. Customized Sizes and shapes are also available, please contact us.
Converters & Calculators
