Phase boundary between ilmenite and perovskite structures in MnGeO3 determined by in situ X-ray diffraction measurements

Daisuke Yamazaki; Eiji Ito; Yoshinori Tange; Takashi Yoshino; Shuangmeng Zhai; Hiroshi Fukui; Anton Shatskiy; Tomoo Katsura; Ken Ichi Funakoshi

doi:10.1007/s00269-007-0145-y

Phase boundary between ilmenite and perovskite structures in MnGeO₃ determined by in situ X-ray diffraction measurements

Daisuke Yamazaki, Eiji Ito, Yoshinori Tange, Takashi Yoshino, Shuangmeng Zhai, Hiroshi Fukui, Anton Shatskiy, Tomoo Katsura, Ken Ichi Funakoshi

Institute for Planetary Materials

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

In situ X-ray observations of the phase transition from ilmenite to perovskite structure in MnGeO₃ were carried out in a Kawai-type high-pressure apparatus interfaced with synchrotron radiation. The phase boundary between the ilmenite and perovskite structures in the temperature range of 700-1,4007deg;C was determined to be P (GPa) = 16.5(±0.6) 0.0034(±0.0006)T (°C) based on Anderson's gold pressure scale. The Clapeyron slope, dP/dT, determined in this study is consistent with that for the transition boundary between the ilmenite and the perovskite structure in MgSiO₃.

Original language	English
Pages (from-to)	269-273
Number of pages	5
Journal	Physics and Chemistry of Minerals
Volume	34
Issue number	4
DOIs	https://doi.org/10.1007/s00269-007-0145-y
Publication status	Published - May 1 2007

Keywords

High pressure and temperature
Ilmenite
MnGeO
Perovskite
Phase boundary

ASJC Scopus subject areas

Materials Science(all)
Geochemistry and Petrology

Access to Document

10.1007/s00269-007-0145-y

Cite this

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title = "Phase boundary between ilmenite and perovskite structures in MnGeO3 determined by in situ X-ray diffraction measurements",

abstract = "In situ X-ray observations of the phase transition from ilmenite to perovskite structure in MnGeO3 were carried out in a Kawai-type high-pressure apparatus interfaced with synchrotron radiation. The phase boundary between the ilmenite and perovskite structures in the temperature range of 700-1,4007deg;C was determined to be P (GPa) = 16.5(±0.6) 0.0034(±0.0006)T (°C) based on Anderson's gold pressure scale. The Clapeyron slope, dP/dT, determined in this study is consistent with that for the transition boundary between the ilmenite and the perovskite structure in MgSiO3.",

keywords = "High pressure and temperature, Ilmenite, MnGeO, Perovskite, Phase boundary",

author = "Daisuke Yamazaki and Eiji Ito and Yoshinori Tange and Takashi Yoshino and Shuangmeng Zhai and Hiroshi Fukui and Anton Shatskiy and Tomoo Katsura and Funakoshi, {Ken Ichi}",

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T1 - Phase boundary between ilmenite and perovskite structures in MnGeO3 determined by in situ X-ray diffraction measurements

AU - Yamazaki, Daisuke

AU - Ito, Eiji

AU - Tange, Yoshinori

AU - Yoshino, Takashi

AU - Zhai, Shuangmeng

AU - Fukui, Hiroshi

AU - Shatskiy, Anton

AU - Katsura, Tomoo

AU - Funakoshi, Ken Ichi

PY - 2007/5/1

Y1 - 2007/5/1

N2 - In situ X-ray observations of the phase transition from ilmenite to perovskite structure in MnGeO3 were carried out in a Kawai-type high-pressure apparatus interfaced with synchrotron radiation. The phase boundary between the ilmenite and perovskite structures in the temperature range of 700-1,4007deg;C was determined to be P (GPa) = 16.5(±0.6) 0.0034(±0.0006)T (°C) based on Anderson's gold pressure scale. The Clapeyron slope, dP/dT, determined in this study is consistent with that for the transition boundary between the ilmenite and the perovskite structure in MgSiO3.

AB - In situ X-ray observations of the phase transition from ilmenite to perovskite structure in MnGeO3 were carried out in a Kawai-type high-pressure apparatus interfaced with synchrotron radiation. The phase boundary between the ilmenite and perovskite structures in the temperature range of 700-1,4007deg;C was determined to be P (GPa) = 16.5(±0.6) 0.0034(±0.0006)T (°C) based on Anderson's gold pressure scale. The Clapeyron slope, dP/dT, determined in this study is consistent with that for the transition boundary between the ilmenite and the perovskite structure in MgSiO3.

KW - High pressure and temperature

KW - Ilmenite

KW - MnGeO

KW - Perovskite

KW - Phase boundary

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