Journal of East China Normal University(Natural Sc ›› 2004, Vol. 2004 ›› Issue (1): 56-60.

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Fe/ PZFE Nanometer Composites by High Energy Ball Milling

QIAN Fang-zhen, JIANG Ke-yu, RUAN Jian-zhong   

  1. Department of Physics，East China Normal University, Shanghai 200062, China
  • Received:2002-11-08 Revised:2003-01-31 Online:2004-03-25 Published:2004-03-25
  • Contact: QIAN Fang-zhen

Abstract: Fe/PTFE nanometer compound was prepared by high energy ball milling. Firstly, PTFE was milled for 50h,90h,120h ,then Fe/ PTFE mixture was milled for 700h. The components were indentified by 57Fe Mossbauer spectroscopy. The Mossbauer effect studies show that the spectrum includes not only both
sextets of bulk and interface of a-Fe ,it indicates the size of particle Fe is in the order of nanometer, but also one singlet for Fe3+, one doublet for Fe2+ , they corresponds to FeF2 and FeF3 respectively. As milling time increases，the component of interface of a-Fe disappears, meantime, the Fe3C appears. The result shows that it is helpful to produce FeF3 as PTFE was initially milled.

Key words: high energy ball milling, a-Fe /PTFE, nanometer compound, high energy ball milling, a-Fe /PTFE

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