Preparation of Raney-Ni/Al2O3 Powder Composites by De-alloying of Mechanochemical Synthesized Ni2Al3/Al2O3 Powders

doi:10.11896/j.issn.1005-023X.2018.06.019

CORC > 兰州理工大学 > 兰州理工大学 > 省部共建有色金属先进加工与再利用国家重点实验室

	Preparation of Raney-Ni/Al2O3 Powder Composites by De-alloying of Mechanochemical Synthesized Ni2Al3/Al2O3 Powders
	Liu, Diqiang 1; Jia, Jiangang 2; Gao, Changqi 2; Wang, Jianhong 1
刊名	Cailiao Daobao/Materials Review
	2018-03-25
卷号	32 期号:3 页码:957-960
关键词	Alloying Alumina Aluminum Aluminum oxide Binary alloys Dealloying Milling (machining) Mixtures Nanotechnology Nickel oxide Phase composition Powders Sodium hydroxide X ray diffraction Mechanochemical reactions Mechanochemical synthesis Mechanochemicals Ni2Al3 Powder composites Raney Ni Sodium hydroxide solutions Structural development
ISSN号	1005023X
DOI	10.11896/j.issn.1005-023X.2018.06.019
英文摘要	Ni2Al3/Al2O3 powder composites were synthesized by mechanochemical reaction of NiO-Al powder mixtures. Phase evolution and structural development during ball milling were investigated by XRD, SEM equipped with EDS. Ni2Al3/Al2O3 were leached in 20% sodium hydroxide solution for 2 h, to obtain Ni/Al2O3 with the grain size of a nano-scale level. The phase composition and the microstructure were studied by XRD and TEM. The results showed that the phase composition of the NiO-Al powder mixtures remained unchanged after 1 h of ball milling. Mechanochemical reaction between NiO and Al powders under the mechanical forces Ni2Al3 and Al2O3 were formed after 3 h of balling. The mechanically activated reaction between NiO and Al occurred in sudden. Ni2Al3/Al2O3 powder composites were formed after 10 h of ball milling. Ni2Al3/Al2O3 powder composites were etched in a 20% sodium hydroxide solution at 70 for 2 h and Ni/Al2O3 powder composites was obtained. © 2018, Materials Review Magazine. All right reserved.
语种	中文
出版者	Cailiao Daobaoshe/ Materials Review
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/114528]
专题	省部共建有色金属先进加工与再利用国家重点实验室材料科学与工程学院
作者单位	1.School of Materials Science and Engineering, North University of China, Taiyuan; 030051, China; 2.State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Liu, Diqiang,Jia, Jiangang,Gao, Changqi,et al. Preparation of Raney-Ni/Al2O3 Powder Composites by De-alloying of Mechanochemical Synthesized Ni2Al3/Al2O3 Powders[J]. Cailiao Daobao/Materials Review,2018,32(3):957-960.
APA	Liu, Diqiang,Jia, Jiangang,Gao, Changqi,&Wang, Jianhong.(2018).Preparation of Raney-Ni/Al2O3 Powder Composites by De-alloying of Mechanochemical Synthesized Ni2Al3/Al2O3 Powders.Cailiao Daobao/Materials Review,32(3),957-960.
MLA	Liu, Diqiang,et al."Preparation of Raney-Ni/Al2O3 Powder Composites by De-alloying of Mechanochemical Synthesized Ni2Al3/Al2O3 Powders".Cailiao Daobao/Materials Review 32.3(2018):957-960.