2018 Volume 55 Issue 8 Pages 445-454
Mechanical analysis of basic powder phenomena, development of new powder operation and design of materials related to powders using powder simulation are described. The behavior of slow flow of powders is very different from that of fluid. The mechanism of the slow flow was elucidated using DEM simulation. A method for preparing a functional coating film by electrostatic powder coating is introduced as an example of development of new powder operation. The design of piezoelectric ceramics was performed using an estimation model for electromechanical properties as electromechanical coupling coefficient, dielectric and piezoelectric constants.
