High-pressure phase relationships for FeS

Satoru Urakawa; Masayuki Hasegawa; Junji Yamakawa; Ken Ichi Funakoshi; Wataru Utsumi

doi:10.1080/08957950212808

High-pressure phase relationships for FeS

Satoru Urakawa, Masayuki Hasegawa, Junji Yamakawa, Ken Ichi Funakoshi, Wataru Utsumi

School of Science

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

4 Citations (Scopus)

Abstract

Phase relationships for FeS polymorph have been studied at the pressure of 16-20 GPa and temperature of 300-1350 K by in situ X-ray observation using a large volume high-pressure apparatus and a synchrotron radiation. Contrary to Fei's prediction [1], we found the stability field of NiAs-type phase of FeS extending at least to 18 GPa. Results of in situ X-ray observation correspond with the NiAs-hexagonal phase boundary determined by Kusaba et al. [2,3]. Assuming the straight NiAs-hexagonal phase boundary, we estimate that the NiAs-hexagonal-liquid triple junction is located at 39.5 GPa and 2300 K.

Original language	English
Pages (from-to)	491-494
Number of pages	4
Journal	High Pressure Research
Volume	22
Issue number	2
DOIs	https://doi.org/10.1080/08957950212808
Publication status	Published - May 2002

Keywords

Core
Electronic transition
FeS
Iron sulfide
Martian core
Troilite

ASJC Scopus subject areas

Condensed Matter Physics

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10.1080/08957950212808

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title = "High-pressure phase relationships for FeS",

abstract = "Phase relationships for FeS polymorph have been studied at the pressure of 16-20 GPa and temperature of 300-1350 K by in situ X-ray observation using a large volume high-pressure apparatus and a synchrotron radiation. Contrary to Fei's prediction [1], we found the stability field of NiAs-type phase of FeS extending at least to 18 GPa. Results of in situ X-ray observation correspond with the NiAs-hexagonal phase boundary determined by Kusaba et al. [2,3]. Assuming the straight NiAs-hexagonal phase boundary, we estimate that the NiAs-hexagonal-liquid triple junction is located at 39.5 GPa and 2300 K.",

keywords = "Core, Electronic transition, FeS, Iron sulfide, Martian core, Troilite",

author = "Satoru Urakawa and Masayuki Hasegawa and Junji Yamakawa and Funakoshi, {Ken Ichi} and Wataru Utsumi",

year = "2002",

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doi = "10.1080/08957950212808",

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journal = "High Pressure Research",

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T1 - High-pressure phase relationships for FeS

AU - Urakawa, Satoru

AU - Hasegawa, Masayuki

AU - Yamakawa, Junji

AU - Funakoshi, Ken Ichi

AU - Utsumi, Wataru

PY - 2002/5

Y1 - 2002/5

N2 - Phase relationships for FeS polymorph have been studied at the pressure of 16-20 GPa and temperature of 300-1350 K by in situ X-ray observation using a large volume high-pressure apparatus and a synchrotron radiation. Contrary to Fei's prediction [1], we found the stability field of NiAs-type phase of FeS extending at least to 18 GPa. Results of in situ X-ray observation correspond with the NiAs-hexagonal phase boundary determined by Kusaba et al. [2,3]. Assuming the straight NiAs-hexagonal phase boundary, we estimate that the NiAs-hexagonal-liquid triple junction is located at 39.5 GPa and 2300 K.

AB - Phase relationships for FeS polymorph have been studied at the pressure of 16-20 GPa and temperature of 300-1350 K by in situ X-ray observation using a large volume high-pressure apparatus and a synchrotron radiation. Contrary to Fei's prediction [1], we found the stability field of NiAs-type phase of FeS extending at least to 18 GPa. Results of in situ X-ray observation correspond with the NiAs-hexagonal phase boundary determined by Kusaba et al. [2,3]. Assuming the straight NiAs-hexagonal phase boundary, we estimate that the NiAs-hexagonal-liquid triple junction is located at 39.5 GPa and 2300 K.

KW - Core

KW - Electronic transition

KW - FeS

KW - Iron sulfide

KW - Martian core

KW - Troilite

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High-pressure phase relationships for FeS

Abstract

Keywords

ASJC Scopus subject areas

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