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  4. Non-destructive testing of ceramic materials by ultrasonic methods at high frequencies
 
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1988
Book Article
Title

Non-destructive testing of ceramic materials by ultrasonic methods at high frequencies

Abstract
The physical and technical basis for the non-destructive testing of components made out of technical ceramics by high-frequency ultrasonic methods is described. Particular emphasis is laid on a large signal/noise ratio for defect detection. In order to attain this goal, broadband and rf-carrier excitation of ultrasonic probes suitable for this purpose were used, and a detailed comparison between the two is given. An outline of a prototype apparatus based on the results of this project is presented. Finally, the viability of photoacoustic microscopy as a complementary tool for the ndt of the surface region of technical ceramics is discussed. (IZFP)
Author(s)
Arnold, W.
Mainwork
Technical Ceramics  
Language
English
Fraunhofer-Institut für Zerstörungsfreie Prüfverfahren IZFP  
Keyword(s)
  • Hochfrequenzultraschall

  • Keramik

  • Photoakustik

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