24. Ultrasonic Techniques for Evaluation of SiC Armor Tile

  1. Jeffrey J. Swab
  1. J. Scott1 and
  2. William A. Ellingson2

Published Online: 26 MAR 2008

DOI: 10.1002/9780470291276.ch24

Advances in Ceramic Armor: A Collection of Papers Presented at the 29th International Conference on Advanced Ceramics and Composites, January 23-28, 2005, Cocoa Beach, Florida, Ceramic Engineering and Science Proceedings, Volume 26, Number 7

Advances in Ceramic Armor: A Collection of Papers Presented at the 29th International Conference on Advanced Ceramics and Composites, January 23-28, 2005, Cocoa Beach, Florida, Ceramic Engineering and Science Proceedings, Volume 26, Number 7

How to Cite

Scott, J. and Ellingson, W. A. (2005) Ultrasonic Techniques for Evaluation of SiC Armor Tile, in Advances in Ceramic Armor: A Collection of Papers Presented at the 29th International Conference on Advanced Ceramics and Composites, January 23-28, 2005, Cocoa Beach, Florida, Ceramic Engineering and Science Proceedings, Volume 26, Number 7 (ed J. J. Swab), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470291276.ch24

Author Information

  1. 1

    Steckenrider Illinois College 1101 W. College Ave. Jacksonville, IL 62650

  2. 2

    Jeffery Wheeler Argonne National Laboratory 9700 S. Cass Avenue Argonne, IL 60439

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 2005

ISBN Information

Print ISBN: 9781574982374

Online ISBN: 9780470291276

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Keywords:

  • ceramic armor tiles;
  • high-speed nondestructive evaluation;
  • signal-to-noise ratio;
  • transducers;
  • a/D interfaces

Summary

Obtaining reliable ballistic performance is important to full utilization of ceramic armor tile. One possible way to reduce scatter in ballistic performance is through utilization of a reliable, low-cost, high-speed nondestructive evaluation (NDE) method that could act as a screening tool to select those tiles that could produce poor ballistic performance. Ultrasonic methods utilizing advanced phased array technology would seem to be a possible candidate. As a step towards evaluation of this technology, recent single transducer water-immersion tests have been conducted using both focused and unfocused transducers on a variety of SiC armor materials. These materials had grain sizes from 0.89 um to 5.26 um. These different grain sizes likely impact the signal-to-noise ratio (SNR) at different frequencies and therefore these tests provide information on which to select the frequencies to use for phased arrays. In addition to these empirical studies, an analytical ultrasonic performance prediction model has been evaluated. This paper will present the ultrasonic methods under study and review results to date.