Research output: Contribution to journal › Article › peer-review
Peculiarities of melting and crystallization of n-decane in a porous glass. / Pirozerski, A.L.; Smirnova, O.I.; Nedbai, A.I.; Pirozerskaya, O.L.; Grunina, N.A.; Mikushev, V.M.
In: Physics Letters A, Vol. 383, No. 30, 125872, 25.10.2019.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Peculiarities of melting and crystallization of n-decane in a porous glass
AU - Pirozerski, A.L.
AU - Smirnova, O.I.
AU - Nedbai, A.I.
AU - Pirozerskaya, O.L.
AU - Grunina, N.A.
AU - Mikushev, V.M.
PY - 2019/10/25
Y1 - 2019/10/25
N2 - Melting and crystallization of n-decane embedded into porous glass with the mean pore size of about 6.4 nm were studied using acoustic and DSC methods. Smearing of the phase transitions, decrease of melting and freezing temperatures, pronounced hysteresis between melting and crystallization were revealed by both methods. In DSC measurements for the pore filling factors 70% and higher double peaks were observed upon cooling while only single peaks were present upon heating. Also a high reduction of the corresponding phase transition heats was revealed. Melting and freezing intervals determined by acoustic and DSC methods strongly differed from each other. A model which qualitatively explains the observed anomalies is proposed. It supposes the formation of liquid layers on the surface of the pores.
AB - Melting and crystallization of n-decane embedded into porous glass with the mean pore size of about 6.4 nm were studied using acoustic and DSC methods. Smearing of the phase transitions, decrease of melting and freezing temperatures, pronounced hysteresis between melting and crystallization were revealed by both methods. In DSC measurements for the pore filling factors 70% and higher double peaks were observed upon cooling while only single peaks were present upon heating. Also a high reduction of the corresponding phase transition heats was revealed. Melting and freezing intervals determined by acoustic and DSC methods strongly differed from each other. A model which qualitatively explains the observed anomalies is proposed. It supposes the formation of liquid layers on the surface of the pores.
KW - лавление и кристаллизация в нанопорахн-деканПористое стеклоИмпульсно-фазовый ультразвуковой способДифференциальная сканирующая калориметрияРазмерный эффект
KW - Melting and crystallization in nanoporesn-decanePorous glassPulse-phase ultrasonic techniqueDifferential scanning calorimetrySize effects
KW - Pulse-phase ultrasonic technique
KW - Differential scanning calorimetry
KW - Melting and crystallization in nanopores
KW - Size effects
KW - n-decane
KW - Porous glass
UR - http://www.scopus.com/inward/record.url?scp=85070190104&partnerID=8YFLogxK
U2 - 10.1016/j.physleta.2019.125872
DO - 10.1016/j.physleta.2019.125872
M3 - Article
VL - 383
JO - Physics Letters A
JF - Physics Letters A
SN - 0375-9601
IS - 30
M1 - 125872
ER -
ID: 44865463