Theoretical study of the saturated vapor pressure and enthalpy of sublimation of C-60 and C-70 fullerites

Using the correlative method of the unsymmetrized self-consistent field for strongly anharmonic crystals and the virial expansion for a gas we undertook a theoretical study of the thermodynamic equilibrium between fullerites and their vapors. Results are presented here for the saturated vapor pressure and the enthalpy of sublimation for two, more widespread fullerites, C-60 and C-70 The calculations have been made over the whole interval from the equilibrium point with orientationally ordered modifications up to the spinodal temperature of the two-phase systems crystal-vapor T-S. For C-60 it has been estimated as T-S approximate to 1917 K. We estimate the triple point parameters for C-60: T-tr approximate to 1460 K, P-tr approximate to 740 Torr, and for C-70: T-tr approximate to 1500 K, P-tr approximate to 655 Torr.

Авторы
Zubov V.I. , Tretiakov N.P. , Sanchez-Ortiz J.F. , Zubov I.V. , Rabelo J.NT. , Barrio J.BM.
Редакторы
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Издательство
GORDON BREACH SCI PUBL LTD
Номер выпуска
1-4
Язык
Английский
Страницы
51-58
Статус
Опубликовано
Подразделение
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Ссылка
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DOI
-
Номер
-
Том
10
Год
1998
Организации
-
Ключевые слова
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Дата создания
19.10.2018
Дата изменения
19.10.2018
Постоянная ссылка
https://repository.rudn.ru/ru/records/article/record/9275/