Fabrication of nanoporous Ni with multi-hierarchical structure and its influencing factors

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	Fabrication of nanoporous Ni with multi-hierarchical structure and its influencing factors
	Zhou, Qi; Wu, Hai-Tao; Jia, Jian-Gang; Zang, Shu-Jun
刊名	Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment
	2013-08-01
卷号	34 期号:8 页码:11-15
关键词	Alloys Aluminum Quenching De-alloying Multi-hierarchical Nano-porous NiAl alloy Rapidly quenching
ISSN号	10096264
英文摘要	Nanoporous Ni was prepared with the method of vacuum melting, rapidly quenching and dealloying. Microstructure of the samples was characterized by means of XRD, SEM and EDS. The mechanism of multi-hierarchical nanoporous size distributions and the influence factors of pore structure in dealloying process were studied. The results show that the master Ni30Al70 alloy with homogeneous and fine grains can be obtained by rapidly quenching. The novel multi-hierarchical nanoporous Ni is prepared by dealloying of the Ni30Al70 alloy in NaOH solution. The structure consists of the skeleton of 100-300 nm and honeycomb structure of porous size of 10 nm. Furthermore, the synergetic dealloying of NiAl3 and Ni2Al3 in the dual-phase Ni-Al alloys is very important for the formation of nanoporous Ni with a homogeneous structure. The optimal process parameters of the dealloying is at 65°C in a 25% sodium hydroxide solution.
语种	中文
出版者	Editorial Office of Transactions of Materials, 18 Xueqing Road, Beijing, 100083, China
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/113259]
专题	外国语学院材料科学与工程学院省部共建有色金属先进加工与再利用国家重点实验室
作者单位	State Key Laboratory of Gansu Advanced Nonferrous Metal Materials, Lanzhou University of Technology, Lanzhou 730050, China
推荐引用方式 GB/T 7714	Zhou, Qi,Wu, Hai-Tao,Jia, Jian-Gang,et al. Fabrication of nanoporous Ni with multi-hierarchical structure and its influencing factors[J]. Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment,2013,34(8):11-15.
APA	Zhou, Qi,Wu, Hai-Tao,Jia, Jian-Gang,&Zang, Shu-Jun.(2013).Fabrication of nanoporous Ni with multi-hierarchical structure and its influencing factors.Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment,34(8),11-15.
MLA	Zhou, Qi,et al."Fabrication of nanoporous Ni with multi-hierarchical structure and its influencing factors".Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment 34.8(2013):11-15.