Inhaltsbereich
Rotating Multi-Anvil Press
A Rotating Multi-Anvil Press constructed by Max Voggenreiter GmbH is installed in the high-pressure hall of the GFZ. The apparatus consists of an 800 ton hydraulic press and a Walker-type multi-anvil module. The whole apparatus is rotatable by 360o perpendicular to the press axis. Schmidt and Ulmer (2004) demonstrated that by rotation it is possible to overcome common fluid/solid or melt/solid separation during high-pressure experiments. The press covers the pressure range 3.0-20.0 GPa, corresponding to earth's depths of circa 100-650 km, thus allowing the study of geomaterial properties and geochemical processes at mantle conditions.
Technical Specifications:
- 32-mm cubes WC
- TEL sizes 11, 8 and 5
- Prefabricated MgO Octahedra with Cr2O3
- Pressure range operated 3.5 - 18 GPa
- Typ C thermocouples
- Graphite and LaCrO3 heater
- Temperature range operated up to 2000oC
© GFZ Potsdam- Rotating Multi-Anvil with Walker Modul. The height of the Walker Modul is 28 cm.
© GFZ Potsdam- Part of the Walker Modul showing the experimental set up after a high-pressure run. Edge length of the "big cube" is 67 mm.
© GFZ Potsdam- Cross-section through a Pt capsule containing the run product of a static experiment (left) performed at 12 GPa and 1200°C. The different colours symbolize the different minerals: ringwoodite (blue), wadsleyite (green) and olivine (red). On the right: reaction product under the same experimental conditions but rotated with 4° sec showing now the equilibrium texture: ringwoodite (green), wadsleyite (yellow) and olivine (red).
Contact person: M. Koch-Müller, R. Schulz (technical support), B. Wunder