Home > Press > Laser-based ultrasound approach provides new direction for nondestructive testing: Patches coated with nanoparticles from candle soot found to generate ultrasonic waves that can be used to monitor the structural integrity of buildings
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Abstract:
Many industrial buildings, including nuclear power plants and chemical plants, rely on ultrasound instruments that continually monitor the structural integrity of their systems without damaging or altering their features. One new technique draws on laser technology and candle soot to generate effective ultrasonic waves for nondestructive testing and evaluation.
Laser-based ultrasound approach provides new direction for nondestructive testing: Patches coated with nanoparticles from candle soot found to generate ultrasonic waves that can be used to monitor the structural integrity of buildings
Washington, DC | Posted on September 4th, 2019Many industrial buildings rely on ultrasound instruments that continually monitor the structural integrity of their systems without damaging or altering their features. One new technique draws on laser technology and candle soot to generate effective ultrasonic waves for nondestructive testing and evaluation. Researchers are using ultrasonic nondestructive testing that involves amplifying the signal from a photoacoustic laser source using laser-absorbing patch made from an array of nanoparticles from candle soot and polydimethylsiloxane. This image shows the fabrication process of patterned candle soot (CS) nanoparticle (NP) polydimethylsiloxane (PDMS) patch.
CREDIT
Taeyang Kim
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