Phase behaviour near the triple point of carbon dioxide confined in mesoporous VYCOR glass |
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| Authors: | J A Duffy H M Fretwell A P Clarke S B Dugdale M A Alam |
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| Institution: | (1) H. H. Wills Physics Laboratory, University of Bristol, Tyndall Av., BS8 1TL Bristol, (UK);(2) Institut für Nukleare Festkörperphysik, Universität der Bundeswehr München, D-85579 Neubiberg, (Germany) |
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| Abstract: | The phase behaviour of carbon dioxide confined in VYCOR glass at pressures below that of the bulk triple point ( 0.51 MPa) has been investigated. The temperature at which freezing occurs appears to be pressure dependent below 0.3 MPa. As experiments are performed at successively lower pressures, the confined phase transitions gradually disappear, due to either partial pore filling, or the proximity of the confined triple point. |
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