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J. Korean Ceram. Soc. > Volume 46(6); 2009 > Article
Journal of the Korean Ceramic Society 2009;46(6): 545.
doi: https://doi.org/10.4191/kcers.2009.46.6.545
Formation of Sn-dispersed Si Nanoparticles by Co-grinding
Bong-Chull Kim, Hiroyuki Uono1, Makoto Ue1, Mamoru Senna2
Sasmung SDI Co. Ltd.
1Mitsubishi Chemical Corporation MCC-Group Science &Technology Research Center
2Department of Applied Chemistry, Faculty of Science and Technology, Keio University
An immiscible Si/Sn (=7/3 by volume) powder mixture was subjected to simple grinding and subsequent leaching process to give Sn nanopowder reinforced or dispersed in Si powder. Crystallite and their agglomerates of Si were ca. 15 nm and 100 nm, respectively. Sn remained at 4.5 vol% in Si powder after aqueous HCl leaching, dispersively occluded in Si matrix as confirmed by ICP analysis and cross sectional TEM observation.
Key words: Mechanical milling, Nanocomposite, Powder processing, Co-grinding
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