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Report Summarizes Nuclear Materials Study Findings from National Institute for Fusion Science (In situ observation of structural change of...

July 11, 2014



Report Summarizes Nuclear Materials Study Findings from National Institute for Fusion Science (In situ observation of structural change of nanostructured tungsten during annealing)

By a News Reporter-Staff News Editor at Science Letter -- Investigators publish new report on Nuclear Materials. According to news reporting originating from Gifu, Japan, by NewsRx correspondents, research stated, "Deformation of fiberform nanostructure and the dynamic behavior of helium (He) bubbles in fuzz tungsten (W) during annealing have been investigated by means of in situ cross-section observation using transmission electron microscopy and He desorption rate observation using thermal desorption spectroscopy (TDS)."

Our news editors obtained a quote from the research from National Institute for Fusion Science, "Thermal recovery of the nanostructure, such as shrinkage and coalescence of fine structure, annihilation of He bubbles, and large desorption of He gas, occurred around 1073-1173 K. The activation energy of He was estimated from a TDS peak that appeared around 300-400 K by using the Kissinger-Akahira-Sunose model-free-kinetics method."

According to the news editors, the research concluded: "In addition, the TDS results of fiberform nanostructured tungsten were compared with those of tungsten samples irradiated with a high-energy He ion beam."

For more information on this research see: In situ observation of structural change of nanostructured tungsten during annealing. Journal of Nuclear Materials, 2014;449(1-3):9-14. 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 M. Yajima, Natl Inst Fus Sci, Toki, Gifu 5095292, Japan. Additional authors for this research include N. Yoshida, S. Kajita, M. Tokitani, T. Baba and N. Ohno (see also Nuclear Materials).

Keywords for this news article include: Gifu, Asia, Japan, Tungsten, Nuclear Materials, Transition Elements

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Science Letter


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