J. Phys. III France
Volume 5, Numéro 6, June 1995
Page(s) 783 - 789
DOI: 10.1051/jp3:1995160
J. Phys. III France 5 (1995) 783-789

Preliminary Investigation on Laser Ultrasonic NDE of Nano-meter Materials

Xiaorong Zhang1, Changming Gan1, Yuying Huang2 and Dingchang Xian2

1  Laboratory of Modern Acoustics and Institute of Acoustics, Nanjing University, Nanjing 210008, China
2  Synchrotron Radiation Lab., Institute of High Energy Physics, Chinese Academy of Science, Beijing 100039, China

(Received 25 July 1994, revised 31 January 1995, accepted 15 March 1995)

Some experimental results about laser ultrasonic NDE of nano-meter materials of silver and copper (hereafter nmAg and nmCu) are obtained. A pulsed laser is used as the ultrasonic source, and a capacitive transducer as the receiver. The phenomenon related to the particle size effect and the interface effect between particles of nano-mater material is observed. The response signal resulting from artificial interface layer in nmCu is clearly seen.

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