Crystalline-amorphous dual-phase ceramic nanocomposites regulated by entropy engineering

doi:10.1111/jace.20003

IMR OpenIR

	Crystalline-amorphous dual-phase ceramic nanocomposites regulated by entropy engineering
	Fu, Le 1; Wang, Bohan 2; Jiang, Fuqing 3; Yu, Wenjun 1; Xia, Wei 4
通讯作者	Fu, Le(fule2019@csu.edu.cn)
	2024-07-19
发表期刊	JOURNAL OF THE AMERICAN CERAMIC SOCIETY
ISSN	0002-7820
页码	16
摘要	Solid-state reaction (SSR) is frequently used to fabricate bulk high-entropy ceramics (HECs). However, a high temperature and a long dwelling time are typically required to allow the occurrence of SSR. Meanwhile, conventional HECs were typically composed of single-phase solid solution with micrograins. It is of great interest to develop nanocrystalline dual-phase HECs under mild conditions. Here, we fabricated entropy-mediated crystalline-amorphous dual-phase ceramic nanocomposites, and the fabrication process showed significantly higher energy and time efficiency than the conventional SSR. The nanocomposites were composed of entropy-mediated nanoparticles (EM-NPs) embedded in an amorphous SiO2 matrix. The constituent elements were homogeneously distributed in the EM-NPs at the atomic level. The EM-NPs were dislocations-free but with lattice strain, and they showed a strong coarsening tendency during annealing. The nanocomposites showed a significant solid solution hardening effect. The reported results would provide useful guidance to fabricate nanocrystalline HECs with crystalline-amorphous dual-phase microstructure. Formation mechanism of traditional single-phase HECs and the new crystalline-amorphous dual-phase HEC. image
关键词	dual-phase nanocomposite entropy engineering high-entropy medium-entropy thermal stability
资助者	National Natural Science Foundation of China ; Natural Science Foundation of Hunan Province
DOI	10.1111/jace.20003
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[52102084] ; Natural Science Foundation of Hunan Province[2022JJ30718]
WOS研究方向	Materials Science
WOS类目	Materials Science, Ceramics
WOS记录号	WOS:001272224700001
出版者	WILEY
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/188225
专题	中国科学院金属研究所
通讯作者	Fu, Le
作者单位	1.Cent South Univ, Sch Mat Sci & Engn, Changsha 410083, Peoples R China 2.Tsinghua Univ, Sch Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang, Peoples R China 4.Uppsala Univ, Dept Mat Sci & Engn, Appl Mat Sci, Uppsala, Sweden
推荐引用方式 GB/T 7714	Fu, Le,Wang, Bohan,Jiang, Fuqing,et al. Crystalline-amorphous dual-phase ceramic nanocomposites regulated by entropy engineering[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY,2024:16.
APA	Fu, Le,Wang, Bohan,Jiang, Fuqing,Yu, Wenjun,&Xia, Wei.(2024).Crystalline-amorphous dual-phase ceramic nanocomposites regulated by entropy engineering.JOURNAL OF THE AMERICAN CERAMIC SOCIETY,16.
MLA	Fu, Le,et al."Crystalline-amorphous dual-phase ceramic nanocomposites regulated by entropy engineering".JOURNAL OF THE AMERICAN CERAMIC SOCIETY (2024):16.