抄録
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.
