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Experimental Petrology and Metallurgy/Apparatus/Multi Anvil Presses
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Introduction
History
Assembly Types
Much of the material below comes from https://home.hiroshima-u.ac.jp/kawazoe/html/Kawazoe04-Method-EN.html
Multianvil Apparatus Kawazoe Takaaki
First stage anvils
Kawai-type
In the Kawai-type multianvil apparatus (multianvil 6-8 system; Kawai and Endo, 1970), sample pressure is generated by successive compression:
(1) Hydraulic ram(s) drive six first-stage anvils (via guide blocks).
(2) The six first-stage anivls compress eight second-stage anvils.
(3) The second-stage anvils compress an octahedral cell assembly.
Split-cylinder type
Walker-type
(Walker et al., 1990)
Split-sphere type
6-ram
Oil reservoir
(Kawai and Endo, 1970)
(D)-DIA-type
(Ohtani et al., 1989)
(D)T-Cup-type
Cubic-type
Second stage anvils
Gaskets
Cell assembly
Pressure media
Heaters
Capsules
Thermocouples
Common Designs
25/18
18/11
14/8
10/5
7/3
Cell Preparation