Journal
RUSSIAN JOURNAL OF NONDESTRUCTIVE TESTING
Volume 45, Issue 10, Pages 677-684Publisher
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S1061830909100027
Keywords
acoustic lens; focusing of ultrasound; microflaws
Funding
- Russian Academy of Sciences [01.2.006 13393]
- Program of the Presidium of the Russian Academy of Sciences [2, 2009]
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A laboratory scanning acoustic microscope working in a pulsed regime at a frequency of 400 MHz with a resolution of approximately 3 mu m for investigation and visualization of flaws and microflaws in surface and subsurface layers in solids is described. Acoustic images of various types of microflaws (micropores and microcracks) are obtained and analyzed; the images contain new information n the degree of microdamage to a material compared to that presented by the light microscopy method.
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