Capacitive ultrasonic micro-transducer made of carbon nanotubes: Prospects for the in-situ embedded non-destructive testing of durability in cementitious materials
EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING(2011)
摘要
We put forward an innovative method for the non-destructive testing of durability in cementitious material. It is based on microporosity probing by high-frequency ultrasonic micro-transducers. We present elements of the realisation and the characterization of such challenging devices. Their design relies on the exceptional mechanical performances of carbon nanotubes. Modelling of the devices in a fluid environment provides a preliminary validation of their suitability for durability monitoring.
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关键词
non-destructive testing,cementitious materials,durability,micro-porosity,carbon nanotubes,ultrasonic transducers,microfluidics,elasto-acoustics
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