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Slow crack growth of a veneering ceramic using indentation flaws

โœ Scribed by F.A. Feitosa; D.Y. Toyama; A. Arata; R.M. Melo; M.A. Bottino

Book ID
113566435
Publisher
Elsevier Science
Year
2011
Tongue
English
Weight
83 KB
Volume
27
Category
Article
ISSN
0109-5641

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We employed ultrasonic techniques in order to gain information on the R-curve behavior of Al\_,O~ ceramics. A reduction in the sound velocity has been observed at the crack tip of subcritically grown cracks. The measurements were carried out by time-of-flight measurements, and by evaluating the V(z)