In situ X ray observation of high-pressure phase transitions of MgSiO3 and thermal expansion of MgSiO3 perovskite at 25 GPa by double-stage multianvil system

Takumi Kato; Eiji Ohtani; Hideaki Morishima; Daisuke Yamazaki; Akio Suzuki; Minoru Suto; Tomoaki Kubo; Takumi Kikegawa; Osamu Shimomura

doi:10.1029/95jb01688

In situ X ray observation of high-pressure phase transitions of MgSiO₃ and thermal expansion of MgSiO₃ perovskite at 25 GPa by double-stage multianvil system

Takumi Kato, Eiji Ohtani, Hideaki Morishima, Daisuke Yamazaki, Akio Suzuki, Minoru Suto, Tomoaki Kubo, Takumi Kikegawa, Osamu Shimomura

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Abstract

A double-stage multianvil system was developed to conduct in situ X ray diffraction study at high pressures. The system has been used in conjunction with intense synchrotron radiation to study the phase transitions of MgSiO₃ and the thermal expansion of MgSiO₃ perovskite. At pressures between 20 and 30 GPa, a series of phase transitions from spinel+stishovite through ilmenite to perovskite were observed. The results provide the phase stability relation of MgSiO₃ and the thermal equation of state of MgSiO₃ perovskite at pressures corresponding to the boundary between the upper and lower mantle. -from Authors

Original language	English
Pages (from-to)	20,475-20,481
Journal	Journal of Geophysical Research
Volume	100
Issue number	B10
DOIs	https://doi.org/10.1029/95jb01688
Publication status	Published - 1995
Externally published	Yes

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Physical and Theoretical Chemistry
Polymers and Plastics
Materials Chemistry

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10.1029/95jb01688

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Kato, T., Ohtani, E., Morishima, H., Yamazaki, D., Suzuki, A., Suto, M., Kubo, T., Kikegawa, T., & Shimomura, O. (1995). In situ X ray observation of high-pressure phase transitions of MgSiO₃ and thermal expansion of MgSiO₃ perovskite at 25 GPa by double-stage multianvil system. Journal of Geophysical Research, 100(B10), 20,475-20,481. https://doi.org/10.1029/95jb01688

Kato, T, Ohtani, E, Morishima, H, Yamazaki, D, Suzuki, A, Suto, M, Kubo, T, Kikegawa, T & Shimomura, O 1995, 'In situ X ray observation of high-pressure phase transitions of MgSiO₃ and thermal expansion of MgSiO₃ perovskite at 25 GPa by double-stage multianvil system', Journal of Geophysical Research, vol. 100, no. B10, pp. 20,475-20,481. https://doi.org/10.1029/95jb01688

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abstract = "A double-stage multianvil system was developed to conduct in situ X ray diffraction study at high pressures. The system has been used in conjunction with intense synchrotron radiation to study the phase transitions of MgSiO3 and the thermal expansion of MgSiO3 perovskite. At pressures between 20 and 30 GPa, a series of phase transitions from spinel+stishovite through ilmenite to perovskite were observed. The results provide the phase stability relation of MgSiO3 and the thermal equation of state of MgSiO3 perovskite at pressures corresponding to the boundary between the upper and lower mantle. -from Authors",

author = "Takumi Kato and Eiji Ohtani and Hideaki Morishima and Daisuke Yamazaki and Akio Suzuki and Minoru Suto and Tomoaki Kubo and Takumi Kikegawa and Osamu Shimomura",

year = "1995",

doi = "10.1029/95jb01688",

language = "English",

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pages = "20,475--20,481",

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T1 - In situ X ray observation of high-pressure phase transitions of MgSiO3 and thermal expansion of MgSiO3 perovskite at 25 GPa by double-stage multianvil system

AU - Kato, Takumi

AU - Ohtani, Eiji

AU - Morishima, Hideaki

AU - Yamazaki, Daisuke

AU - Suzuki, Akio

AU - Suto, Minoru

AU - Kubo, Tomoaki

AU - Kikegawa, Takumi

AU - Shimomura, Osamu

PY - 1995

Y1 - 1995

N2 - A double-stage multianvil system was developed to conduct in situ X ray diffraction study at high pressures. The system has been used in conjunction with intense synchrotron radiation to study the phase transitions of MgSiO3 and the thermal expansion of MgSiO3 perovskite. At pressures between 20 and 30 GPa, a series of phase transitions from spinel+stishovite through ilmenite to perovskite were observed. The results provide the phase stability relation of MgSiO3 and the thermal equation of state of MgSiO3 perovskite at pressures corresponding to the boundary between the upper and lower mantle. -from Authors

AB - A double-stage multianvil system was developed to conduct in situ X ray diffraction study at high pressures. The system has been used in conjunction with intense synchrotron radiation to study the phase transitions of MgSiO3 and the thermal expansion of MgSiO3 perovskite. At pressures between 20 and 30 GPa, a series of phase transitions from spinel+stishovite through ilmenite to perovskite were observed. The results provide the phase stability relation of MgSiO3 and the thermal equation of state of MgSiO3 perovskite at pressures corresponding to the boundary between the upper and lower mantle. -from Authors

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JF - Journal of Geophysical Research

SN - 0148-0227

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ER -

In situ X ray observation of high-pressure phase transitions of MgSiO₃ and thermal expansion of MgSiO₃ perovskite at 25 GPa by double-stage multianvil system

Abstract

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