Synthesis and high-temperature properties of medium-entropy (Ti,Ta,Zr,Nb)C using the spark plasma consolidation of carbide powders

D. Demirskyi; T. S. Suzuki; K. Yoshimi; O. Vasylkiv

doi:10.1016/j.oceram.2020.100015

Synthesis and high-temperature properties of medium-entropy (Ti,Ta,Zr,Nb)C using the spark plasma consolidation of carbide powders

D. Demirskyi^*, T. S. Suzuki, K. Yoshimi, O. Vasylkiv

^*この研究の対応する著者

研究成果: Article › 査読

16 被引用数 (Scopus)

抄録

In this study, we explore a simple and effective method for producing a quaternary solid-solution of carbides, a medium-entropy (Ti_1/4Ta_1/4Zr_1/4Nb_1/4)C. Using commercially-available carbide powders with an equimolar ratio and performing spark plasma consolidation at 1927 °C and 1977 °C, we demonstrated that the phase formation and high-temperature flexural strength can be controlled using the processing conditions. The flexural strength and fracture toughness at room temperature were reached an average of 560 MPa and 3.2 MPa m^1/2, respectively. The high-temperature performance of these ceramics was analyzed and compared with the available data for the group IV and V transition metal carbide monoliths.

本文言語	English
論文番号	100015
ジャーナル	Open Ceramics
巻	2
DOI	https://doi.org/10.1016/j.oceram.2020.100015
出版ステータス	Published - 2020 7月
外部発表	はい

ASJC Scopus subject areas

生体材料
セラミックおよび複合材料
電子材料、光学材料、および磁性材料
材料化学

文献へのアクセス

10.1016/j.oceram.2020.100015

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引用スタイル

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title = "Synthesis and high-temperature properties of medium-entropy (Ti,Ta,Zr,Nb)C using the spark plasma consolidation of carbide powders",

abstract = "In this study, we explore a simple and effective method for producing a quaternary solid-solution of carbides, a medium-entropy (Ti1/4Ta1/4Zr1/4Nb1/4)C. Using commercially-available carbide powders with an equimolar ratio and performing spark plasma consolidation at 1927 °C and 1977 °C, we demonstrated that the phase formation and high-temperature flexural strength can be controlled using the processing conditions. The flexural strength and fracture toughness at room temperature were reached an average of 560 MPa and 3.2 MPa m1/2, respectively. The high-temperature performance of these ceramics was analyzed and compared with the available data for the group IV and V transition metal carbide monoliths.",

keywords = "Flexural strength, High-entropy ceramics, High-temperature materials, Medium-entropy ceramics, Transition metal carbides",

author = "D. Demirskyi and Suzuki, {T. S.} and K. Yoshimi and O. Vasylkiv",

note = "Funding Information: Authors express their sincere appreciation to Dr. Toshiyuki Nishimura (NIMS) for providing access to the evaluation of high-temperature strength, this study would not be as complete otherwise. D.D. was supported by World Premier International Research Center Initiative (WPI), MEXT, Japan. Publisher Copyright: {\textcopyright} 2020 The Author(s)",

year = "2020",

month = jul,

doi = "10.1016/j.oceram.2020.100015",

language = "English",

volume = "2",

journal = "Open Ceramics",

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publisher = "Elsevier BV",

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AU - Demirskyi, D.

AU - Suzuki, T. S.

AU - Yoshimi, K.

AU - Vasylkiv, O.

N1 - Funding Information: Authors express their sincere appreciation to Dr. Toshiyuki Nishimura (NIMS) for providing access to the evaluation of high-temperature strength, this study would not be as complete otherwise. D.D. was supported by World Premier International Research Center Initiative (WPI), MEXT, Japan. Publisher Copyright: © 2020 The Author(s)

PY - 2020/7

Y1 - 2020/7

N2 - In this study, we explore a simple and effective method for producing a quaternary solid-solution of carbides, a medium-entropy (Ti1/4Ta1/4Zr1/4Nb1/4)C. Using commercially-available carbide powders with an equimolar ratio and performing spark plasma consolidation at 1927 °C and 1977 °C, we demonstrated that the phase formation and high-temperature flexural strength can be controlled using the processing conditions. The flexural strength and fracture toughness at room temperature were reached an average of 560 MPa and 3.2 MPa m1/2, respectively. The high-temperature performance of these ceramics was analyzed and compared with the available data for the group IV and V transition metal carbide monoliths.

AB - In this study, we explore a simple and effective method for producing a quaternary solid-solution of carbides, a medium-entropy (Ti1/4Ta1/4Zr1/4Nb1/4)C. Using commercially-available carbide powders with an equimolar ratio and performing spark plasma consolidation at 1927 °C and 1977 °C, we demonstrated that the phase formation and high-temperature flexural strength can be controlled using the processing conditions. The flexural strength and fracture toughness at room temperature were reached an average of 560 MPa and 3.2 MPa m1/2, respectively. The high-temperature performance of these ceramics was analyzed and compared with the available data for the group IV and V transition metal carbide monoliths.

KW - Flexural strength

KW - High-entropy ceramics

KW - High-temperature materials

KW - Medium-entropy ceramics

KW - Transition metal carbides

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