ひずみゲージ式圧力変換器ベルセロ法により測定されたアセトンの負の高圧力

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  • High Negative Pressures in Acetone Measured by the Berthelot Method Using Strain Gauge Pressure Transducer
  • ヒズミ ゲージシキ アツリョク ヘンカンキ ベルセロホウ ニ ヨリ ソクテイ サレタ アセトン ノ フ ノ コウアツリョク

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Liquids under negative pressures are in meta-stable and stretched states thermodynamically. So, the states transformed easily to coexisting states with vapors through heterogeneous nucleation processes. Therefore, it has been difficult even now to generate static negative pressures to measure liquids' properties under the pressures. In this paper, negative pressures were measured by the Berthelot method using a strain gauge pressure transducer. A sample liquid was acetone. Negative pressures increased with temperature cycles through two stages and attained a maximum value of ca.-20 MPa for acetone of ca.0.06 cm3.

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