Solidification and melting of mercury in a porous glass as studied by NMR and acoustic techniques
作者： B. F. Borisov , E. V. Charnaya , P. G. Plotnikov , W.-D. Hoffmann , D. Michel
关键词: Phase transition 、 Porous glass 、 Transverse wave 、 Melting point 、 Analytical chemistry 、 Acoustic wave 、 Transverse plane 、 Liquid layer 、 Materials science 、 Mercury (element)
摘要: The melting and freezing phase transitions of mercury in a porous glass were studied by NMR acoustic techniques. measurements provided direct information on the total amount liquid versus temperature. A depression transition temperatures pronounced hysteresis between found. Acoustic showed that process was irreversible while consisted reversible temperature ranges. use longitudinal transverse waves made it possible to obtain about origin behavior upon melting. In particular, we found complete confined can be acoustically detected using only not waves. broadening is explained formation layer solid surface, driven pore geometry with no visible precursor effects.
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