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Left: Illustration of the internal configuration of the Walker Multi-Anvil module (this unit is on display at the Smithsonian Institution's Janet Annenberg Hooker Hall of Geology, Gems and Minerals at the National Museum of Natural History.

Below: Specially modified Walker Multi-Anvil installed in 250 ton press at University of Toronto

Above: Multi-Anvil Module with anvils removed

Right: Walker module with view of (1") tungsten carbide anvils positioned on the lower set of wedges. As shown in Figure A, the sample octahedron sits at the center of symmetry of the cubes.

8 cubes (5 shown) press on octahedron.  Gaskets are made of pyrophyllite

Cross section of octahedron shows: MgO pressure medium (red)
ZrO2 insulator (yellow)
Stepped LaCrO3 heater (black)
Mo rings (grey)
MgO insulating parts (white)
Sample (grey/green)
Thermocouple wire

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(graphic and anvil photo obtained from CalTech Professor Jed Mosenfelder)

Click here to view pressure chart>>

Rockland Research Corporation
16 Tompkins Avenue
West Nyack, NY  10994

Phone: (845) 353-4686
Fax: (845) 358-9119

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Walker Multi-Anvil - Presses - Piston Cylinder Systems - Custom Systems - Cubic Multi-Anvil - TAP98 - Customer Sites - Questions - Products - Agents