High-contrast, reversible change of thermal conductivity in hexagonal nickel-iron sulfides

doi:10.1016/j.actamat.2021.116709

HFCAS OpenIR

	High-contrast, reversible change of thermal conductivity in hexagonal nickel-iron sulfides
	Zhang, X. K.1,2; Li, J. Y.1; Lin, J. C.1; Tong, P.1,2 ; Wang, M.1; Wang, X. L.1,2; Tong, H. Y.1,2; Zhang, Y. S.1,2; Song, W. H.1; Sun, Y. P.1,3
	2021-04-15
发表期刊	ACTA MATERIALIA
ISSN	1359-6454
通讯作者	Tong, P.(tongpeng@issp.ac.cn) ; Zhang, Y. S.(yshzhang@theory.issp.ac.cn)
摘要	Materials showing abrupt change of thermal conductivity are strongly desired for rapidly developing thermal regulation applications. Here, we report a sharp change of thermal conductivity (Delta kappa/kappa(0)) up to 200% within a temperature interval of similar to 40 K in hexagonal sulfides Ni1-xFexS bonded with silver. Such Delta kappa/kappa(0) values exceed those reported in other thermal regulation materials, e.g., VO2 series (Delta kappa/kappa(0)<100%). The large jump of thermal conductivity roots from the dramatic modification of the electronic structure at the first-order phase transition. Moreover, the addition of silver overcomes the inherent brittleness of Ni1-xFexS and thus improves machinability and thermal cycling stability, which is beneficial to the practical applications. Our work presents a new promising material for thermal management applications. (C) 2021 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
关键词	Thermal regulation First-order phase transition High-contrast thermal conductivity change Theoretical calculations Hexagonal nickel sulfides
DOI	10.1016/j.actamat.2021.116709
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China (NSFC)[U1932127] ; National Natural Science Foundation of China (NSFC)[11774347] ; Key Research Program of Frontier Sciences, CAS[QYZDB-SSW-SLH015] ; Users with Excellence Program of Hefei Science Center CAS[2019HSC-UE008]
项目资助者	National Natural Science Foundation of China (NSFC) ; Key Research Program of Frontier Sciences, CAS ; Users with Excellence Program of Hefei Science Center CAS
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000636045300015
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：16[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/121598
专题	中国科学院合肥物质科学研究院
通讯作者	Tong, P.; Zhang, Y. S.
作者单位	1.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Peoples R China 3.Chinese Acad Sci, Anhui Prov Key Lab Condensed Matter Phys Extreme, High Magnet Field Lab, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Zhang, X. K.,Li, J. Y.,Lin, J. C.,et al. High-contrast, reversible change of thermal conductivity in hexagonal nickel-iron sulfides[J]. ACTA MATERIALIA,2021,208.
APA	Zhang, X. K..,Li, J. Y..,Lin, J. C..,Tong, P..,Wang, M..,...&Sun, Y. P..(2021).High-contrast, reversible change of thermal conductivity in hexagonal nickel-iron sulfides.ACTA MATERIALIA,208.
MLA	Zhang, X. K.,et al."High-contrast, reversible change of thermal conductivity in hexagonal nickel-iron sulfides".ACTA MATERIALIA 208(2021).