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Título: | Ultrasonic characterization of defective porcelain tiles |
Autor: | Eren, E.; Kurama, S.; Janssen, R. | Palabras clave: | Porcelain tile Defect |
Fecha de publicación: | 2012 | Editor: | Sociedad Española de Cerámica y Vidrio | Citación: | Boletín de la Sociedad Española de Cerámica y Vidrio Vol 51, 4, 211-216, Julio-Agosto 2012 | Resumen: | The aim of this work is the optimization of ultrasonic methods in the non-destructive testing of sintered porcelain tiles containing defects. For this reason, a silicon nitride ball, carbon black and PMMA (Polymethylmethacrylate) were imbedded in porcelain tile granules before pressing to make special defects in tiles. After sintering at 1220˚C, the time of flight of the ultrasonic waves and ultrasonic signal amplitudes through the sintered porcelain tiles were measured by a contact ultrasonic transducer operating on pulse-echo mode. This method can allow for defect detection using the A-scan. The results of the test showed that the amplitude of the received peak for a defective part is smaller than for a part which has no defects. Depending on the size, shape and position of the defect, its peak can be detected. Additionally, an immersion pulse-echo C-scan method was also used to differentiate between defects in porcelain tiles. By using this technique, it is possible to determine the place and shape of defects. To support the results of the ultrasonic investigation, a SEM characterization was also made. | Versión del editor: | http://boletines.secv.es/upload/20120903135230.201251211.pdf | URI: | http://hdl.handle.net/10261/56540 | ISSN: | 0366-3175 |
Aparece en las colecciones: | (ICV) Artículos |
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bsecv-21-09-2012-dos.pdf | 1 MB | Adobe PDF | Visualizar/Abrir |
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