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Alumina Flat Bottomed Boat Crucible

Formula: Al₂O₃
Form: Crucible
Material: Alumina
CAS Number: 1344-28-1
Commodity: Ceramics
Purity: 99.8%
The Alumina Flat Bottomed Boat Crucible by Goodfellow is engineered to provide stability and precision during high-temperature experiments. Made from aluminum oxide (Al₂O₃), it offers exceptional thermal resistance up to 1800°C along with excellent chemical inertness to prevent sample contamination. Its flat-bottomed design ensures uniform heat distribution across the sample surface, making it ideal for controlled heating processes. These crucibles are commonly used in material testing laboratories, chemical synthesis experiments, and metallurgical studies. Specific uses include analyzing thermodynamic properties of alloys or conducting pyrolysis reactions in controlled atmospheres. In research environments, these crucibles support advancements in understanding material behavior under extreme conditions while maintaining sample integrity. Their reliability makes them essential tools for both industrial quality control processes and academic innovation in material science fields.
Technical Data Sheet Safety Data Sheet Tolerance Properties
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Tolerances

Flat Bottomed Boat
External Width ±10%
External Length ±10%
External 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
Pultrusions
Element Value
Compressive strength( MPa ) 2200-2600

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