Rapid heating induced ultrahigh stability of nanograined copper

doi:10.1126/sciadv.aaz8003

IMR OpenIR

	Rapid heating induced ultrahigh stability of nanograined copper
	Li, X. Y.; Zhou, X.; Lu, K.
通讯作者	Li, X. Y.(xyli@imr.ac.cn) ; Lu, K.(lu@imr.ac.cn)
	2020-04-01
发表期刊	SCIENCE ADVANCES
ISSN	2375-2548
卷号	6 期号:17 页码:6
摘要	Inherent thermal and mechanical instability of nanograined materials bottlenecks their processing and technological applications. In addition to the traditional stabilization strategy, which is based on alloying, grain boundary relaxation was recently found to be effective in stabilizing nanograined pure metals. Grain boundary relaxation can be induced by deforming very fine nanograins below a critical size, typically several tens of nanometers. Here, we found that rapid heating may trigger intensive boundary relaxation of pure Cu nanograins with sizes up to submicrometers, a length scale with notable instability in metals. The rapidly heated Cu nanograins remain stable at temperatures as high as 0.6 T-m (melting point), even higher than the recrystallization temperature of deformed coarse-grained Cu. The thermally induced grain boundary relaxation originating from the generation of high-density nanotwins offers a alternative approach to stabilizing nanostructured materials.
资助者	Ministry of Science and Technology of China ; National Science Foundation of China ; Chinese Academy of Sciences
DOI	10.1126/sciadv.aaz8003
收录类别	SCI
语种	英语
资助项目	Ministry of Science and Technology of China[2017YFA0204401] ; Ministry of Science and Technology of China[2017YFA0700700] ; National Science Foundation of China[51231006] ; Chinese Academy of Sciences[zdyz201701]
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:000530628100037
出版者	AMER ASSOC ADVANCEMENT SCIENCE
引用统计	被引频次：92[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/138808
专题	中国科学院金属研究所
通讯作者	Li, X. Y.; Lu, K.
作者单位	Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Li, X. Y.,Zhou, X.,Lu, K.. Rapid heating induced ultrahigh stability of nanograined copper[J]. SCIENCE ADVANCES,2020,6(17):6.
APA	Li, X. Y.,Zhou, X.,&Lu, K..(2020).Rapid heating induced ultrahigh stability of nanograined copper.SCIENCE ADVANCES,6(17),6.
MLA	Li, X. Y.,et al."Rapid heating induced ultrahigh stability of nanograined copper".SCIENCE ADVANCES 6.17(2020):6.