Linear drive type of modulated rotating magnetic field for a continuous process of three-dimensional crystal orientation

Equipment that can generate a linear drive type of modulated rotating magnetic field (MRF) was developed for three-dimensional magnetic alignment applicable to a continuous production process. This equipment consists of an arrayed magnet unit assembled using permanent magnets and a linear drive system, and it can generate a static magnetic field region with 0.9 T and a rotating magnetic field region with 0.5-0.9 T and 520 rpm. The equipment has been used to successfully biaxially align powders of an orthorhombic cuprate superconductor DyBa(2)Cu(3)Oy (y similar to 7) with twin microstructures in epoxy resin at room temperature without rotating the sample. (c) 2018 The Ceramic Society of Japan. All rights reserved.