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Alumina E Beam Crucible

The Alumina E Beam Crucible is one of Goodfellow's wide range of crucibles and is available in 6 different variations. It is made from aluminum oxide which has excellent thermal shock resistance, low thermal expansion and high purity. It can be used in a variety of high temperature applications like electron beam evaporation and other vacuum deposition processes. The crucible's alumina composition provides a non-reactive and thermally stable container for evaporant materials used in the production of thin films and coatings.
Outside Diameter: 51.56mm
External Height: 25.9mm
Angle: 15°
Technical Name: Alumina
Formula: Al₂O₃
Percentage Purity: 99.8%
Density: 3.9g/cm³
Product Shape: E Beam
CAS Number: 1344-28-1
UOM Code: 652-959-90
SKU: 1000022915
Product Code: AL60-CB-000370

Tolerances

E Beam
Outside Diameter ±10%
External Height ±10%
No Minimum order Approx. 2 weeks leadtime Free technical support *Free delivery worldwide
€243.11
each
  • Buy 5 for €196.92 each and save 19%
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Tolerances

E Beam
Outside Diameter ±10%
External Height ±10%
Technical Data Sheet
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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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