The Bi I-II Transition Pressure Measured with a Dead-Weight Piston Gauge
- 1 May 1967
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 38 (6), 2640-2644
- https://doi.org/10.1063/1.1709961
Abstract
A dead‐weight piston gauge was used to determine the bismuth I‐II transition pressure and the volume change at the transition. The transition pressure at 25°C for one sample, believed to contain less than 0.001% impurities, was found to be 25 306 bar, with an estimated uncertainty of 60 bar. With another sample, of substantially less purity and of larger grain size, a transition pressure of 25 500±60 bar was measured. The average relative volume change was 0.035.Keywords
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