Micro-Radiography and Tomography for High Resolution NDT of Advanced Materials and Microstructural Components

[+] Author and Article Information
M. Maisl, H. Reiter, P. Höller

Fraunhofer-Institut für zerstörungsfreie Prüfverfahren, Universität, Gebäude 37, D-6600 Saarbrücken 11, Federal Republic of Germany

J. Eng. Mater. Technol 112(2), 223-226 (Apr 01, 1990) (4 pages) doi:10.1115/1.2903311 History: Received March 16, 1989; Online April 29, 2008


Quality assessment of advanced materials like high strength ceramics and fibre reinforced composites requires detection and characterization of early damage and defects like cracks and pores even with linear dimensions of only 10 μm. Structures of the same size must be distinguishable in components of precision mechanics and electronics. This paper discusses some applications of microfocal X-ray radiography and high resolution computed tomography in nondestructive evaluation of such components. The latter can be looked at as a nondestructive microscopic technique imaging cross sections of an object. Results of investigations using a tomographic unit with a resolution capability of the order of magnitude of 20 μm are presented.

Copyright © 1990 by The American Society of Mechanical Engineers
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