Qualifying Glass Surfaces by Scratch Test with Integrated Image Processing

Abstract:

Residual stresses of production origin superimposed with the operational stresses influences the reliability of glass products. The most widely used procedures for their detection and qualification are optical methods that can not be utilized for testing of non-transparent glasses. A recently developed glass qualifying procedure based on scratch test with integrated image processing is applicable for evaluating the residual stresses in surface of both the transparent and non-transparent glasses. The reliability of the suggested test method is greatly dependent on the information content provided by the involved image analysis procedure. The current paper introduces the principle, and methodology of the test method, furthermore presents the latest results gained by applying an improved algorithm of the image processing.

• Periodical: Key Engineering Materials (Volume 409)
• Pages: 267-274
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.409.267
• Online since: March 2009
• Authors: Maria Berkes Maros, Attila Fazekas, Péter Barkóczy, Szilvia Szeghalmy, Zsuzsanna Koncsik
• Keywords: Glass, Image Analysis, Scratch Test, Surface Residual Stress

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