Magnetic nanopowders: Ultrasound-assisted electrochemical preparation and properties

The development of cost-effective nanopowder production methods has been a major obstacle to the development and industrial utilization of nanostructu red materials. This paper describes a new cost-effective production technol ogy for these materials which combines both pulsed electrochemistry and pul sed ultrasound. This technique has been applied to the synthesis of pure an d binary and ternary alloyed nanopowders containing iron, cobalt, and nicke l. The resulting nanopowders have been characterized by transmission electr on microscopy, X-ray fluorescence, transmission high-energy electron diffra ction, X-ray diffraction, and Mossbauer spectroscopy. The results indicate that this new production method is ideal for the preparation of high perfor mance nanocomposite powders and related high-density nanocomposite material s.