Alumina Cylindrical Crucible

Formula: Al₂O₃

Form: Crucible

Material: Alumina

CAS Number: 1344-28-1

Commodity: Ceramics

Purity: 99.8%

The Alumina Cylindrical Crucible from Goodfellow is designed for precision in high-temperature applications. Made from aluminum oxide (Al₂O₃), it offers exceptional thermal resistance up to 1800°C and robust chemical stability, ensuring minimal interaction with experimental materials. Its cylindrical shape is optimized for uniform heat distribution, enhancing the accuracy of results in thermal processes. These crucibles are widely used in industries such as metallurgy, electronics, and material testing. Common applications include melting metals, sintering ceramics, and conducting chemical reactions at elevated temperatures. They are particularly beneficial in semiconductor manufacturing and the development of advanced alloys. In research settings, alumina cylindrical crucibles enable precise control over experimental conditions, fostering innovations in materials science and engineering. Their durability and versatility make them indispensable tools for both industrial processes and cutting-edge scientific exploration.

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Technical Data Sheet Safety Data Sheet Tolerance Properties

each

Tolerances

Cylindrical

Outside Diameter		±10%
Inside Diameter		±10%
Height		±10%

Material Properties for Ceramics

Chemical Resistance

Element	Value
Acids - concentrated	Good
Acids - dilute	Good
Alkalis	Good
Halogens	Good
Metals	Good

Electrical Properties

Element	Value
Dielectric constant	9-10.1
Dielectric strength( kV mm⁻¹ )	Oct-35
Volume resistivity( Ohmcm )	>10¹⁴@25

Physical Properties

Element	Value
Apparent porosity( % )	0
Water absorption - saturation( % )	0
Density( gcm⁻³ )	3.9

Thermal Properties

Element	Value
Melting point( C )	2100
Upper continuous use temperature( C )	1700
Specific heat( J K⁻¹ kg⁻¹ )	850-900@25°C
Thermal conductivity( W m⁻¹ K⁻¹ )	26-35@20°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	8@20-1000°C

Mechanical Properties

Element	Value
Tensile modulus( GPa )	300-400
Hardness - Knoop( kgf mm⁻² )	2100
Hardness - Vickers( kgf mm⁻² )	1500-1650
Shear strength( MPa )	330
Tensile strength( MPa )	260-300