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Metal-Fluorocarbon Pyrolants. XIV: High Density-High Performance Decoy Flare Compositions Based on Ytterbium/Polytetrafluoroethylene/Viton®

  1. Dr. Ernst-Christian Koch1,*,
  2. Arno Hahma2

Article first published online: 8 MAR 2012

DOI: 10.1002/zaac.201200036

Issue

Zeitschrift für anorganische und allgemeine Chemie

Zeitschrift für anorganische und allgemeine Chemie

Volume 638, Issue 5, pages 721–724, April 2012

Additional Information

How to Cite

Koch, E.-C. and Hahma, A. (2012), Metal-Fluorocarbon Pyrolants. XIV: High Density-High Performance Decoy Flare Compositions Based on Ytterbium/Polytetrafluoroethylene/Viton® . Z. anorg. allg. Chem., 638: 721–724. doi: 10.1002/zaac.201200036

Author Information

  1. 1

    NATO Munitions Safety Information Analysis Center (MSIAC), Boulevard Leopold III, 1110 Bruxelles, Belgium

  2. 2

    Diehl BGT Defence GmbH & Co. KG, Fischbachstrasse 16, 90552 Röthenbach an der Pegnitz, Germany

*NATO Munitions Safety Information Analysis Center (MSIAC), Boulevard Leopold III, 1110 Bruxelles, Belgium, Fax: ++32 2 707 5363

  1. In Memory of Dr. Uwe Krone

Publication History

  1. Issue published online: 23 APR 2012
  2. Article first published online: 8 MAR 2012
  3. Manuscript Accepted: 8 MAR 2012
  4. Manuscript Received: 30 JAN 2012

Funded by

  • Schwarze Wissenschaftliche Geräte

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Keywords:

  • Ytterbium;
  • Pyrotechnics;
  • Decoy flare;
  • Infrared radiation

Abstract

Three pyrotechnic compositions based on ytterbium /polytetrafluoroethylene/Viton® (YTV) 77/18/5, 82/13/5 and 87/8/5 wt.-% were compared to a baseline magnesium /polytetrafluoroethylene/Viton® (MTV) 60/35/5 wt.-% composition. YTV though energetically inferior to MTV both gravimetrically and volumetrically exhibit a radiance Lλ (W·sr–1·cm–2) superior to MTV in the important beta-band (λ = 3.5–4.6 μm). This is assumed to be due to the selective emissivity of Yb2O3 which is formed in the afterburning zone of YTV. The emissivity of Yb2O3 is 7–10 times higher than that of MgO in the same spectral range. Due to the high density of ytterbium and the formulations based thereon YTV are promising candidates for autophagous nose cones for kinematic blackbody flares.

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