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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
Corresponding AuthorDeng, W(wdeng@gku.edu.cn)
2004-12-01
Source PublicationRARE METAL MATERIALS AND ENGINEERING
ISSN1002-185X
Volume33Pages:125-128
AbstractThe 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.
Keywordpositron annihilation 3d electrons NiAl alloys
Indexed BySCI
Language英语
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000227059600031
PublisherNORTHWEST INST NONFERROUS METAL RESEARCH
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/81304
Corresponding AuthorDeng, W
Affiliation1.Guangxi Univ, Phys Dept, Guangzhou 530004, Peoples R China
2.Chinese Acad Sci, Int Ctr Mat Phys, Shenyang 110016, Peoples R China
Recommended Citation
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.
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