By a News Reporter-Staff News Editor at Science Letter -- Current study results on Nanocrystals have been published. According to news reporting originating from Hong Kong, People's Republic of China, by NewsRx correspondents, research stated, "Irradiation-induced microstructure evolution and phase transformation have been studied on the nanocrystalline tungsten film with simple cubic structure (B phase)."
Our news editors obtained a quote from the research from the City University of Hong Kong, "The samples were irradiated by 4 MeV Au ions at different fluences ranging from 6 x 10(14) to 1 x 10(16) ions/cm(2), corresponding to the peak damage levels from 6 to 100 dpa (displacements per atom). Analysis by GIXRD and TEM reveals that the structure of tungsten film undergoes a distinct transition from simple cubic phase to bcc phase when the fluence is above 3 x 10(15) ions/cm(2) (30 dpa) and grain growth occurs with the increasing fluence."
According to the news editors, the research concluded: "Radiation-induced small voids are clearly observed in the interior of coarsened grains at the highest fluence, 1 x 10(16) ions/cm(2) (100 dpa)."
For more information on this research see: Effect of high fluence Au ion irradiation on nanocrystalline tungsten film. Journal of Nuclear Materials, 2013;442(1-3):189-194. Journal of Nuclear Materials can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands. (Elsevier - www.elsevier.com; Journal of Nuclear Materials - www.elsevier.com/wps/product/cws_home/505671)
The news editors report that additional information may be obtained by contacting H.W. Wang, City University of Hong Kong, Dept. of Phys & Mat Sci, Hong Kong, Hong Kong, People's Republic of China. Additional authors for this research include Y. Gao, E.G. Fu, T.F. Yang, S. Yan, J.M. Xue, P.K. Chu and Y.G. Wang (see also Nanocrystals).
Keywords for this news article include: Asia, Tungsten, Hong Kong, Nanotechnology, Nanocrystalline, Transition Elements, Emerging Technologies, People's Republic of China
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