preparation

Sample Preparation and Consolidation Facilities

 
 

Conventional Sample Preparation

• Arc Melting

  • Temperatures up to 3500°C
  • Up to 20 g samples per batch
  • Conventional water cooled melting crucible and suction casting option
  • In cooperation with Fraunhofer IWKS arc melting up to 500 g

• Induction Melting

  • Melting under vacuum (approx. 10-3 mbar) or inert gas (Ar) options
  • Temperatures up to 1600°C
  • Up to 50 g samples per batch
  • ZrO2 and Al2O3 crucible options
  • In cooperation with Fraunhofer IWKS induction melting up to 3kg

• Melt Spinning

  • Up to 10g per batch
  • Various crucibles and slids
  • Adjustable wheel speeds
  • In cooperation with Fraunhofer IWKS up to 500 g

• Strip Casting

  • In cooperation with Fraunhofer IWKS up to 50 kg

• Growing Single Crystals from Flux

  • Crystal growth by remelting in high temperature furnaces

• Ball Milling

  • High Energy Ball Milling (Spex 8000D)
  • Hardened steel vial and balls (milling volume up to 25 ml)

• Planetary Ball Milling (Pulverisette 6 mono)

  • Adjustable milling speed (100-650 rpm)
  • Milling volume up to 250 ml and 500 ml
  • Hardened steel, tungsten carbide and zirconium oxide grinding vial and balls
  • Dry and wet ball milling options
  • High pressure (max. 150 bar) reactive milling in hydrogen or nitrogen with in situ pressure, temperature monitoring system

• Cryo-Ball Milling (Retsch Cryomill)

  • Adjustable speed shaker mill
  • Milling volume up to 20 ml
  • Hardened steel milling vial and balls
  • Ball milling at -196°C (LN2 condition)

• Heat Treatment

• Annealing furnaces in vacuum or under Ar

• Split furnace up to 1100°C

• Tube furnaces up to 1200°C

• High temperature one zone furnace

  • Up to 1200°C under vacuum
  • Up to 1800°C under constant Ar flow

• Magnetic field assisted processing furnace

  • up to 7 T Oxford magnet
  • Temperatures up to 900° C
  • Pressures up to 10 bar
  • Processes under vacuum, inert gas (N2, Ar) or reactive atmosphere (H2)

• HDDR

  • HDDR process (Hydrogen Disproportionation Desorption Recombination)
  • Furnace heating up to 900°C
  • Hydrogen or nitrogen as process gas
  • Dynamic pressure control between 0.01 and 2 bar
  • Sample handling in inert gas atmosphere possible
  • Powder samples of about 10 g per experiment

• Nitrogenation and Hydrogenation

• PARR reactor

  • Pressures up to 75 bar
  • Temperatures up to 600°C
  • H2, N2,

• Autoclave

  • Pressures up to 530 bar
  • Temperatures up to 400°C
  • H2, N2

• Consolidation and Deformation

• Hot Pressing

  • Compaction forces up to 400 kN
  • Possibility to work under vacuum and Ar
  • Compaction and hot deformation possibilities (die-upsetting, backwards extrusion)
  • Different geometries and sizes
  • Operation temperatures up to 850°C

• Cold Pressing

  • Hydraulic press up to 200 kN
  • Hardened super-alloy press form up to 1 GPa pressures (pressure cross section approx. 10 mm x 5 mm)

• Cold Rolling

  • Possibility to roll materials up to 100 mm width

• Coating

• Electrophoretic Deposition (EPD)

  • Coating of different geometries (only for bulk samples)