Conclusions
The microwave method of quality control facilitates the local and integral checking of the apparent density and porosity of products having different shapes, and also the checking of products having different densities, without breaking the refractories.
The high accuracy, the low effect of the masking factors, the noncontacting nature, the simplicity of automating the testing procedure, and the high speed (parts of a second), make the microwave method very promising for checking the apparent density and porosity of refractories.
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Translated from Ogneupory, No. 12, pp. 13–17, December, 1970.
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Bernshtein, R.S., Sloushch, V.G., Mil'shenko, R.S. et al. Use of microwave electromagnetic oscillations for nondestructive testing of refractories. Refractories 11, 757–762 (1970). https://doi.org/10.1007/BF01290601
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DOI: https://doi.org/10.1007/BF01290601