Dynamic observation of MoSiBTiC alloy phase transitions using in situ ultrahigh-temperature X-ray diffraction measurement

Hiroyuki Fukuyama; Makoto Ohtsuka; Ryogo Sawada; Haruki Nakashima; Yasuo Ohishi; Naohisa Hirao; Masaki Takata; Kyosuke Yoshimi

doi:10.1016/j.mtla.2020.100867

Dynamic observation of MoSiBTiC alloy phase transitions using in situ ultrahigh-temperature X-ray diffraction measurement

Hiroyuki Fukuyama, Makoto Ohtsuka, Ryogo Sawada, Haruki Nakashima, Yasuo Ohishi, Naohisa Hirao, Masaki Takata, Kyosuke Yoshimi

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

2 Citations (Scopus)

Abstract

In situ ultrahigh-temperature XRD measurement of a MoSiBTiC alloy was carried out using a laser-heated diamond anvil cell and synchrotron radiation. This technique revealed the complicated dynamic behavior of phase transitions in the MoSiBTiC alloy on heating above 1950 °C. The MoSiBTiC alloy initially consisted of Mo solid solution (Mo_ss), Mo₅B₂Si (T₂), TiC, Mo₂B, Mo₃Si, and Mo₂C phases. The Mo₂B, Mo₃Si, and Mo₂C phases disappeared on heating at ~1647 °C. The Mo_ss grains coarsened during heating and the Mo_ss, TiC, and T₂ phases were present >1950 °C. The obtained results verified the solidification pathway of the MoSiBTiC alloy.

Original language	English
Article number	100867
Journal	Materialia
Volume	13
DOIs	https://doi.org/10.1016/j.mtla.2020.100867
Publication status	Published - 2020 Sep

Keywords

Diamond anvil cell (DAC)
In situ ultrahigh-temperature XRD measurement
MoSiBTiC alloy
Synchrotron radiation

ASJC Scopus subject areas

Materials Science(all)

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10.1016/j.mtla.2020.100867

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title = "Dynamic observation of MoSiBTiC alloy phase transitions using in situ ultrahigh-temperature X-ray diffraction measurement",

abstract = "In situ ultrahigh-temperature XRD measurement of a MoSiBTiC alloy was carried out using a laser-heated diamond anvil cell and synchrotron radiation. This technique revealed the complicated dynamic behavior of phase transitions in the MoSiBTiC alloy on heating above 1950 °C. The MoSiBTiC alloy initially consisted of Mo solid solution (Moss), Mo5B2Si (T2), TiC, Mo2B, Mo3Si, and Mo2C phases. The Mo2B, Mo3Si, and Mo2C phases disappeared on heating at ~1647 °C. The Moss grains coarsened during heating and the Moss, TiC, and T2 phases were present >1950 °C. The obtained results verified the solidification pathway of the MoSiBTiC alloy.",

keywords = "Diamond anvil cell (DAC), In situ ultrahigh-temperature XRD measurement, MoSiBTiC alloy, Synchrotron radiation",

author = "Hiroyuki Fukuyama and Makoto Ohtsuka and Ryogo Sawada and Haruki Nakashima and Yasuo Ohishi and Naohisa Hirao and Masaki Takata and Kyosuke Yoshimi",

note = "Funding Information: This work was supported by the Advanced Low Carbon Technology Research and Development Program (ALCA) of the Japan Science and Technology Agency (JST) (No. JPMJAL1303 ). The authors thanks S. I. Kawaguchi for the assistance during experiments. Publisher Copyright: {\textcopyright} 2020",

year = "2020",

month = sep,

doi = "10.1016/j.mtla.2020.100867",

language = "English",

volume = "13",

journal = "Materialia",

issn = "2589-1529",

publisher = "Elsevier BV",

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TY - JOUR

T1 - Dynamic observation of MoSiBTiC alloy phase transitions using in situ ultrahigh-temperature X-ray diffraction measurement

AU - Fukuyama, Hiroyuki

AU - Ohtsuka, Makoto

AU - Sawada, Ryogo

AU - Nakashima, Haruki

AU - Ohishi, Yasuo

AU - Hirao, Naohisa

AU - Takata, Masaki

AU - Yoshimi, Kyosuke

N1 - Funding Information: This work was supported by the Advanced Low Carbon Technology Research and Development Program (ALCA) of the Japan Science and Technology Agency (JST) (No. JPMJAL1303 ). The authors thanks S. I. Kawaguchi for the assistance during experiments. Publisher Copyright: © 2020

PY - 2020/9

Y1 - 2020/9

N2 - In situ ultrahigh-temperature XRD measurement of a MoSiBTiC alloy was carried out using a laser-heated diamond anvil cell and synchrotron radiation. This technique revealed the complicated dynamic behavior of phase transitions in the MoSiBTiC alloy on heating above 1950 °C. The MoSiBTiC alloy initially consisted of Mo solid solution (Moss), Mo5B2Si (T2), TiC, Mo2B, Mo3Si, and Mo2C phases. The Mo2B, Mo3Si, and Mo2C phases disappeared on heating at ~1647 °C. The Moss grains coarsened during heating and the Moss, TiC, and T2 phases were present >1950 °C. The obtained results verified the solidification pathway of the MoSiBTiC alloy.

AB - In situ ultrahigh-temperature XRD measurement of a MoSiBTiC alloy was carried out using a laser-heated diamond anvil cell and synchrotron radiation. This technique revealed the complicated dynamic behavior of phase transitions in the MoSiBTiC alloy on heating above 1950 °C. The MoSiBTiC alloy initially consisted of Mo solid solution (Moss), Mo5B2Si (T2), TiC, Mo2B, Mo3Si, and Mo2C phases. The Mo2B, Mo3Si, and Mo2C phases disappeared on heating at ~1647 °C. The Moss grains coarsened during heating and the Moss, TiC, and T2 phases were present >1950 °C. The obtained results verified the solidification pathway of the MoSiBTiC alloy.

KW - Diamond anvil cell (DAC)

KW - In situ ultrahigh-temperature XRD measurement

KW - MoSiBTiC alloy

KW - Synchrotron radiation

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SN - 2589-1529

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Dynamic observation of MoSiBTiC alloy phase transitions using in situ ultrahigh-temperature X-ray diffraction measurement

Abstract

Keywords

ASJC Scopus subject areas

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