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Геодинамика и тектонофизика

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ТЕРМОДИНАМИЧЕСКИЕ СВОЙСТВА BCC-FE ДО ТЕМПЕРАТУРЫ ПЛАВЛЕНИЯ И ДО ДАВЛЕНИЯ 15 ГПА

https://doi.org/10.5800/GT-2014-5-4-0166

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Аннотация

На основе свободной энергии Гельмгольца построено уравнение состояния железа с объемно-центрированной кубической решеткой (bcc-Fe) путем одновременной оптимизации ультразвуковых, рентгеновских, дилатометрических и термохимических измерений в температурном интервале от 100 К до температуры плавления и до давления 15 ГПа. Рассчитанные термодинамические функции bcc-Fe хорошо согласуются со справочными данными и экспериментальными измерениями при атмосферном давлении, а также с PVT измерениями в области температур до 773 К и давлений до 16 ГПа. Приведена табуляция термодинамических функций bcc-Fe (x, a, SCPCVKTKSK'GT,P) до температуры 1811 К и давления до 15 ГПа. Рассчитанные PVT соотношения bcc-Fe могут быть использованы для расчета давления при заданных температурах и объемах.

Об авторах

П. И. Дорогокупец
Институт земной коры СО РАН, Иркутск, Россия
Россия

докт. геол.-мин. наук, зав. лабораторией петрологии,
геохимии и рудогенеза
Институт земной коры СО РАН
664033, Иркутск, ул. Лермонтова, 128, Россия



Т. С. Соколова
Институт земной коры СО РАН, Иркутск, Россия
Россия

канд. геол.-мин. наук, м.н.с.
Институт земной коры СО РАН
664033, Иркутск, ул. Лермонтова, 128, Россия



К. Д. Литасов
Институт геологии и минералогии им. В.С. Соболева СО РАН, Новосибирск, Россия Новосибирский государственный университет, Новосибирск, Россия
Россия

докт. геол.-мин. наук, г.н.с.
Институт геологии и минералогии им. В.С. Соболева СО РАН
630090, Новосибирск, просп. академика Коптюга, 3, Россия



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Для цитирования:


Дорогокупец П.И., Соколова Т.С., Литасов К.Д. ТЕРМОДИНАМИЧЕСКИЕ СВОЙСТВА BCC-FE ДО ТЕМПЕРАТУРЫ ПЛАВЛЕНИЯ И ДО ДАВЛЕНИЯ 15 ГПА. Геодинамика и тектонофизика. 2014;5(4):1033-1044. https://doi.org/10.5800/GT-2014-5-4-0166

For citation:


Dorogokupets P.I., Sokolova T.S., Litasov K.D. THERMODYNAMIC PROPERTIES OF BCC-FE TO MELTING TEMPERATURE AND PRESSURE TO 15 GPA. Geodynamics & Tectonophysics. 2014;5(4):1033-1044. (In Russ.) https://doi.org/10.5800/GT-2014-5-4-0166

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