<trans-title>Research Progress of Transition Metal Non-oxide High-entropy Ceramics</trans-title>

Lei CHEN; Kai WANG; Wentao SU; Wen ZHANG; Chenguang XU; Yujin WANG; Yu ZHOU

doi:10.15541/jim20190408

Journal of Inorganic Materials, Volume. 35, Issue 7, 748(2020)

Research Progress of Transition Metal Non-oxide High-entropy Ceramics

Lei CHEN1...2, Kai WANG1,2, Wentao SU1,2, Wen ZHANG1,2, Chenguang XU1,2, Yujin WANG1,2,*, and Yu ZHOU12 |Show fewer author(s)

Author Affiliations

¹Institute for Advanced Ceramics, School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China

²Key Laboratory of Advanced Structure-functional Integration Materials & Green Manufacturing Technology, Harbin Institute of Technology, Harbin 150001, China

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Figures & Tables(7)

1. Comparison of electrical resistivity between NbTaMoW high-entropy alloy and other single alloys^[19]

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$SEM images of the fracture surfaces, polished surfaces and their corresponding EDS element mappings of (TiZrNbTaW)C using (a) metallic powders and graphite, (b) metal carbides and (c) metal oxides and graphite as raw materials, as well as the back scattered electron images of (TiZrNbTaW)C using (d) metallic powders and graphite,(e) metal carbides and (f) metal oxides and graphite as raw materials[43]$

2. SEM images of the fracture surfaces, polished surfaces and their corresponding EDS element mappings of (TiZrNbTaW)C using (a) metallic powders and graphite, (b) metal carbides and (c) metal oxides and graphite as raw materials, as well as the back scattered electron images of (TiZrNbTaW)C using (d) metallic powders and graphite,(e) metal carbides and (f) metal oxides and graphite as raw materials^[43]

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3. Comparison of hardness depth-profiles of the mono, binary and (HfTaZrNb)C high-entropy transition metal carbides^[37]

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4. Comparison of hardness for different series of quinary high-entropy ceramics^{[25,27-29,31,34,46]}

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5. Comparison of weight gain per unit area as a function of exposure time for (TiZrHfNbTa)C high-entropy ceramic and related (TiZrHNbTa)C, (TiZrNb)C, ZrC ceramic^[52]

Table 1. Ranking of some high-entropy carbides based on the EFA values^[29]

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Table 1. Ranking of some high-entropy carbides based on the EFA values^[29]

Ranking	HEC	EFA/(eV·atom)^-1^a	Ranking	HEC	EFA/(eV·atom)^-1^a
(1)	(VNbTaMoW)C	125	(23)	(TiZrNbTaW)C	59
(2)	(TiZrHfNbTa)C	100	(29)	(ZrVNbTaW)C	56
(3)	(TiHfVNbTa)C	100	(33)	(TiZrHfNbW)C	53
(4)	(TiVNbTaMo)C	100	(36)	(TiZrHfTaW)C	50
(5)	(TiZrNbTaV)C	83	(44)	(TiZrTaMoW)C	48
(7)	(TiVNbTaW)C	77	(52)	(ZrHfTaMoW)C	45
(10)	(TiZrNbTaMo)C	71	(55)	(TiZrHfMoW)C	38
(17)	(TiHfNbTaW)C	67	(56)	(ZrHfVMoW)C	37

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Lei CHEN, Kai WANG, Wentao SU, Wen ZHANG, Chenguang XU, Yujin WANG, Yu ZHOU. Research Progress of Transition Metal Non-oxide High-entropy Ceramics[J]. Journal of Inorganic Materials, 2020, 35(7): 748

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