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Preparation of Metal Nanosuspensions by High-Pressure DC-Sputtering on Running Liquids

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Abstract

A modified VERL-process (Vacuum evaporation on running liquids) employing high pressure magnetron sputtering has been used for the preparation of suspensions with metal nanoparticles. The method has been tested for Ag- and Fe-suspensions by varying the pressure of the Argon sputtering atmosphere in the range of 1 to 30 Pa. A narrow particle size distribution with a mean particle size ranging from 5-18 nm has been found. The mean particle size increases with increasing Argon pressure in the pressure range under investigation. A descriptive model for the process of particle formation as a function of sputtering gas pressure is given.

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Acknowledgement

Financial support of the german federal ministry of education and research (BMBF) under contract no 03N 2004 D is gratefully acknowledged. One of us (BSM) would like to thank the german DFG for funding his research fellowship in Germany.

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Authors and Affiliations

  1. Fraunhofer-Institut fünr angewandte Materialforschung, Lesumer Heerstr. 36, D-28717, Bremen, Germany

    M. Wagener & B. Günther

  2. on leave from Indian Institute of Technology, Kharagpur-721 302, India

    B. S. Murty

Authors
  1. M. Wagener
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  2. B. S. Murty
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  3. B. Günther
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Wagener, M., Murty, B.S. & Günther, B. Preparation of Metal Nanosuspensions by High-Pressure DC-Sputtering on Running Liquids. MRS Online Proceedings Library 457, 149–154 (1996). https://doi.org/10.1557/PROC-457-149

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  • DOI: https://doi.org/10.1557/PROC-457-149

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