8F-5 A Visualization Tool for High Intensity Focused Ultrasonic Field Using LEDs and Piezo-Elements

2007 ◽  
Author(s):  
K. Nakamura ◽  
T. Sugimoto
Keyword(s):  
High Intensity ◽  
Ultrasonic Field ◽  
Visualization Tool

Study on the Preparation Technology of CuO Nanometric Powders by Homogeneous Precipitation in High Intensity Ultrasonic Field

2009 ◽  
Vol 79-82 ◽  
pp. 325-328
Author(s):  
Guang Li ◽  
Cheng Wen Chai
Keyword(s):  
High Intensity ◽  
Ultrasonic Field ◽  
Homogeneous Precipitation ◽  
Preparation Technology ◽  
Reaction Velocity ◽  
Ultrasound Field ◽  
Intensity Field ◽  
Speed Up ◽  
Partical Size ◽  
Xrd And Tem

Nanopowder CuO was prepared by a new method which involves homogeneous precipitation in high intensity field, and powder so obtained was examined by XRD and TEM. The mechanism and effects of conditions of treatment on process and final products are also discussed. These results indicate that not only the reaction velocity was speed up dramatically under ultrasound field but also the particle size of production was greatly affected by the intensity of ultrasound field, the greater the ultrasound field, the smaller the partical size.

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