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Detection of physical flaws in alumina reinforced with SiC fibres by NMR imaging in the green state

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Abstract

Nuclear magnetic resonance (NMR) imaging can be applied non-destructively to detect physical flaws in fibre-reinforced ceramics in the green state. This paper describes the application of NMR imaging to detect physical flaws such as fibre-agglomerates and pores in ceramic matrix composites made by slipcasting. Application of this technique to detect and eliminate the composites with these flaws in the green state will result in considerable savings in processing time and in the cost of components or prototypes fabricated by slipcasting.

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Authors and Affiliations

  1. Atlantic Research Laboratory, National Research Council of Canada, B3H 3Z1, Halifax, Nova Scotia, Canada

    S. Karunanithy

  2. Bruker Spectrospin (Canada) Ltd, L9T 1Y6, Milton, Ontario, Canada

    S. Mooibroek

Authors
  1. S. Karunanithy
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  2. S. Mooibroek
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Karunanithy, S., Mooibroek, S. Detection of physical flaws in alumina reinforced with SiC fibres by NMR imaging in the green state. J Mater Sci 24, 3686–3690 (1989). https://doi.org/10.1007/BF02385757

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  • DOI: https://doi.org/10.1007/BF02385757

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