Acta Metall Sin  1996, Vol. 32 Issue (3): 303-307    DOI:

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STRUCTURE AND MAGNETIC CHARACTER OF NANOSTRUCTURED NiAl ALLOY SYNTHESIZED BY INERT-GAS CONDENSATION

QIN Xiaoying; ZHANG Lide; HOU Bihui; LIANG Renyou; JI Xiaoli(Institute of Solid State Physics; Chinese Academy of Sciences; Hefei 230031)( University of Science and Technology; Hefei 230026 )(Structure Research Laboratory; University of Science and Technology; Hefei 230026 )(Manuscript received 1995-03-13; in revised form 1995-09-18)

QIN Xiaoying; ZHANG Lide; HOU Bihui; LIANG Renyou; JI Xiaoli(Institute of Solid State Physics; Chinese Academy of Sciences; Hefei 230031)( University of Science and Technology; Hefei 230026 )(Structure Research Laboratory; University of Science and Technology; Hefei 230026 )(Manuscript received 1995-03-13; in revised form 1995-09-18). STRUCTURE AND MAGNETIC CHARACTER OF NANOSTRUCTURED NiAl ALLOY SYNTHESIZED BY INERT-GAS CONDENSATION. Acta Metall Sin, 1996, 32(3): 303-307.

Abstract References Related Articles Recommended Metrics Download:  PDF(361KB)  Export:  BibTeX | EndNote (RIS)       Abstract  The structure of nanostructured NiAl(n-NiAl), synthesized by inert-gas condensation, was investigated by X-ray diffraction and TEM. The results indicated that the crystal structure of n-NiAl is same as that of conventional poly-crystalline NiAl alloy(p-NiAl); and the mean grain size of n-NiAl is 8.6 nm. However, there is severe distortion in the crystal lattice of n- NiAl(the distortion ε = 1 .2%); and the long-range ordering degree of n-NiAl is lower than that of p-NiAl. Annealing experiments showed that the grain growth almost did not occur when annealing temperature was lower than 800 K, indicating that n-NiAl is of high resistance to grain growth. In addition, by using electron-spin resonance and magnetization, the strong magnetism(ferro-or antiferromagnetism) of n-NiAl has been ovserved, and it is different from the conventional p-NiAl with weak one. The enhancement of magnetism of n-NiAl would be related to the severe distortion in the crystal lattice and the damage of long-range ordering degree of n-NiAl. Correspondent: QIN Xiaoying, associate professor, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031 Key words:  nanostructured solid      NiAl alloy      structure      magnetism      Received:  18 March 1996      Service E-mail this article Add to citation manager E-mail Alert RSS （） Articles by authors URL:  https://www.ams.org.cn/EN/     OR     https://www.ams.org.cn/EN/Y1996/V32/I3/303 1DaroliaR．In:DaroliaR,LewandowskkiJJ,LiuCT,etal．eds,StructuralIntermetallics,Warrendale:TMS,1993:4952程天一．金属学报,1994,30:A3993张世远,路权,薛荣华,都有为,磁性材料基础．北京:科学出版社,1988:2244KarchJ,BirringerR,GleiterH．Nature,1987,330:5565苏,吴希俊,秦晓英,谢斌,纪小丽,物理学报,1993,42:9696BirringerR,HerrU,GleiterH．SupplTransJpnInstMet,1986;27:437何崇智,郗秀荣,孟庆恩,佟玉,吕世琴．X射线衍射实验技术．上海科学技术出版社,1988:2838秦晓英,张立德．材料研究学报,待发表 [1] MA Dexin, ZHAO Yunxing, XU Weitai, WANG Fu. 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