Effects of Zr and Nb on d electrons in NiAl alloy studied by coincidence positron annihilation spectroscopy

doi:10.1016/j.matlet.2005.05.075

IMR OpenIR

	Effects of Zr and Nb on d electrons in NiAl alloy studied by coincidence positron annihilation spectroscopy
	Deng, W ; Guo, JT ; Brusa, RS ; Karwasz, GP ; Zecca, A
通讯作者	Deng, W(wdeng@gxu.edu.cn)
	2005-11-01
发表期刊	MATERIALS LETTERS
ISSN	0167-577X
卷号	59 期号:27 页码:3389-3392
摘要	The behavior of d electrons in pure Ni, Zr, Nb metals and NiAl-based alloys (NiAl, Ni50Al48Zr2 and Ni50Al48Nb2) has been studied by two-detector coincidence system of Doppler broadening of positron annihilation radiation. It has been found that the probability of positron annihilation with 3d electrons in binary NiAl alloy is relatively low due to the Ni 3d-Al 3p interactions. The additions of Zr or Nb atoms to NiAl alloy lead to the enhancement of d-d interactions and thus the d electron signal in the spectrum. The d electron signal in the spectrum of Ni50Al48Nb2 alloy is higher than that of Ni50Al48Zr2 alloy, that is, the Nb addition is more effective in enhancing the d-d interactions in NiAl alloy compared with the Zr addition. (C) 2005 Elsevier B.V. All rights reserved.
关键词	coincidence positron annihilation spectroscopy d electrons NiAl alloy
DOI	10.1016/j.matlet.2005.05.075
收录类别	SCI
语种	英语
WOS研究方向	Materials Science ; Physics
WOS类目	Materials Science, Multidisciplinary ; Physics, Applied
WOS记录号	WOS:000232347900011
出版者	ELSEVIER SCIENCE BV
引用统计	被引频次：11[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/321006/85021
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, Dept Phys, Nanning 530004, Guangxi Prov, Peoples R China 2.Chinese Acad Sci, Met Res Inst, Shenyang 110016, Peoples R China 3.Univ Trent, Ist Natl Fis Mat, Dipartimento Fis, I-38050 Trento, Italy
推荐引用方式 GB/T 7714	Deng, W,Guo, JT,Brusa, RS,et al. Effects of Zr and Nb on d electrons in NiAl alloy studied by coincidence positron annihilation spectroscopy[J]. MATERIALS LETTERS,2005,59(27):3389-3392.
APA	Deng, W,Guo, JT,Brusa, RS,Karwasz, GP,&Zecca, A.(2005).Effects of Zr and Nb on d electrons in NiAl alloy studied by coincidence positron annihilation spectroscopy.MATERIALS LETTERS,59(27),3389-3392.
MLA	Deng, W,et al."Effects of Zr and Nb on d electrons in NiAl alloy studied by coincidence positron annihilation spectroscopy".MATERIALS LETTERS 59.27(2005):3389-3392.