The 3d electrons in binary NiAl alloys investigated by positron annihilation

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	The 3d electrons in binary NiAl alloys investigated by positron annihilation
	Deng, W ; Zhu, YY ; Zhou, Y ; Huang, YY ; Ruan, XD
通讯作者	Deng, W(wdeng@gku.edu.cn)
	2004-12-01
发表期刊	RARE METAL MATERIALS AND ENGINEERING
ISSN	1002-185X
卷号	33 页码:125-128
摘要	The behavior of 3d electrons in binary NiAl alloys with different chemical composition, single crystal of Ni and cold-rolled Ni has been investigated by two-detector coincidence system of Doppler broadening of positron annihilation radiation. The spectrum of the single crystal of Ni shows the highest 3d electron signal in the spectra of all tested samples. The 3d electron signal in the spectrum of NiAl alloy is much lower than that of the cold-rolled Ni. The experimental results indicate that some of the 3d electrons of Ni atoms and 3p electrons of Al atoms in NiAl alloy are localized to form strong covalent bonds, thus decreasing the probability of positron annihilation with 3d electrons of Ni atoms. With the increase of Al content in binary NiAl alloys, the 3d electron signal in the spectrum of the alloy decreases.
关键词	positron annihilation 3d electrons NiAl alloys
收录类别	SCI
语种	英语
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000227059600031
出版者	NORTHWEST INST NONFERROUS METAL RESEARCH
引用统计	被引频次：3[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/321006/80768
专题	中国科学院金属研究所
通讯作者	Deng, W
作者单位	1.Guangxi Univ, Phys Dept, Guangzhou 530004, Peoples R China 2.Chinese Acad Sci, Int Ctr Mat Phys, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Deng, W,Zhu, YY,Zhou, Y,et al. The 3d electrons in binary NiAl alloys investigated by positron annihilation[J]. RARE METAL MATERIALS AND ENGINEERING,2004,33:125-128.
APA	Deng, W,Zhu, YY,Zhou, Y,Huang, YY,&Ruan, XD.(2004).The 3d electrons in binary NiAl alloys investigated by positron annihilation.RARE METAL MATERIALS AND ENGINEERING,33,125-128.
MLA	Deng, W,et al."The 3d electrons in binary NiAl alloys investigated by positron annihilation".RARE METAL MATERIALS AND ENGINEERING 33(2004):125-128.