DENSITY MAPPING OF CERAMIC TILES BY COMPRESSION-WAVE ULTRASOUND

Autor:	R. E. Challis, G. P. Yiasemides, S. D. Aston
Rok vydání:	2001
Předmět:	Bulk modulus Materials science Mechanical Engineering General Physics and Astronomy Modulus Bulk density Mechanics of Materials visual_art Range (statistics) visual_art.visual_art_medium General Materials Science Ultrasonic sensor Ceramic Tile Composite material Longitudinal wave
Zdroj:	Nondestructive Testing and Evaluation. 17:263-273
ISSN:	1477-2671 1058-9759
DOI:	10.1080/10589750108953114
Popis:	A range of disc shaped ceramic powder compact samples with controlled densities were produced using manufacturing conditions that mimic those used for industrial tile manufacture. Ultrasonic compression-wave velocity measurements were made, and a straight-line relationship was seen to exist between the ceramic sample bulk density and velocity. This relationship can be used to measure density ultrasonically. This type of relationship for powder compacts has been explained before by incorporating the density or pore fraction dependence of Young's modulus into the expression which relates compressionwave propagation velocity to Young's modulus, density and Poisson's ratio. The dependence of Young's modulus on density in the wall tile material was found to deviate from the form assumed in the theory. However, when the range of densities considered is restricted to the range typically achieved industrially, the existing theory is found to be generally applicable. Using results from production line sam...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::cb7c4ac29eeff2518a4e4b5f03d0d509 https://doi.org/10.1080/10589750108953114 Zobrazit plný text záznamu