Microstructure and preparation of Ni, Al and Fe nanopowders

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	Microstructure and preparation of Ni, Al and Fe nanopowders
	Q. Wei; Y. L. Lai; H. Yang; C. G. Li
	1997
发表期刊	Transactions of Nonferrous Metals Society of China
ISSN	1003-6326
卷号	7 期号:1 页码:61-65
摘要	By means of mechanical-physical solid state reaction methods (MPSSRM), 5 similar to 25 nm powders of iron, nickel, aluminium have been prepared. The powders exhibit few clusters of monocrystal and polycrystal, the eletronic structure of which were identified by X-ray diffraction and XPS. The experiments show that there is an oxide layer on the surfaces of Ni, Al, Fe nanopowders. DTA experiments show that the peak point temperature of primal temperature decreases with the decrease of the particle diameter, and tends to move in low temperature direction on the DTA curve of Fe nanopowder. The relationship between the particle diameter (d) of Fe nanopowder and surface energy (Delta H) can be given by Delta H(proportional to)d(-1/2).
部门归属	cent s univ technol,dept appl phys & heat engn,changsha 410083,peoples r china. acad sinica,int ctr mat phys,shenyang 110015,peoples r china.
关键词	Nanopowder Microstructure Electronic Structure Surface Energy
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/38140
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Q. Wei,Y. L. Lai,H. Yang,et al. Microstructure and preparation of Ni, Al and Fe nanopowders[J]. Transactions of Nonferrous Metals Society of China,1997,7(1):61-65.
APA	Q. Wei,Y. L. Lai,H. Yang,&C. G. Li.(1997).Microstructure and preparation of Ni, Al and Fe nanopowders.Transactions of Nonferrous Metals Society of China,7(1),61-65.
MLA	Q. Wei,et al."Microstructure and preparation of Ni, Al and Fe nanopowders".Transactions of Nonferrous Metals Society of China 7.1(1997):61-65.