NASA NTRS · 19860000441
Detecting Pores in SiC Coatings
Abstract
Liquid-penetrant/fluorescence technique reveals cracks and pinholes in protective coatings. Developed for checking quality of overcoatings on silicon carbide layers on advanced carbon/carbon substrates. Technique similar to other liquid-penetrant/fluorescence techniques used to make pores visible. Porous areas absorb more suspension and therefore accumulate more fluorescent particles. They fluoresce more brightly than their surroundings.
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Hamilton, A. B., Tummons, K. L., Lawton, J. W.. 1986-09-01. Detecting Pores in SiC Coatings. https://ntrs.nasa.gov/citations/19860000441
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