Properties of nanophase grains of superconducting YBCO prepared by wet-type jet mill

Fabrication of Highly Ordered Arrays of Nanoparticles by Mechanical Process

“…However, there are a few draw-backs of the conventional break-down process such as the difficulty in controlling the shape of nanoparticles, and the lower bound of the average size of nanoparticles of about a few hundred nanometers. Wet jet mill 7) and high-energy ball milling 8,9) have been developed to fabricate smaller nanoparticles, but the shape of nanoparticles are not as uniform as those fabricated by the build-up process. Because the application areas of nanoparticles have recently been drastically expanding both in the fields of application and scientific research, a fabrication method of nanoparticles is required to meet the demanding requirements of both the high controllability of the shape and the broad range of selection of raw materials for nanoparticles.…”