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Pressure distribution in a multianvil high-pressure device

H Mazaki, D Il Lee and S Shimizu

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Pressure distribution in an octahedral pressure medium (pyrophyllite) placed in a multianvil (eight-anvil) high-pressure apparatus was measured by applying phase transitions in the calibrated metal (bismuth). It has been shown that the pressure at the edge of the octahedral medium is about 14% lower than that at the centre, where the pressure is 25.2 kbar. Confirmation is presented, showing that the distribution is improved when the pressure generated in the medium is increased, and a reasonable uniform pressure distribution is found at the pressure of 77.0 kbar.


PACS

07.35.+k High-pressure apparatus; shock tubes; diamond anvil cells

72.15.-v Electronic conduction in metals and alloys

Subjects

Condensed matter: electrical, magnetic and optical

Instrumentation and measurement

Dates

Issue 11 (November 1973)



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