The control of crystal orientation in ceramics by imposition of a high magnetic field

From the viewpoint of high magnetic field effect, researches on which the crystal orientation of feeble magnetic ceramics was controlled by using a slip casting under a high magnetic field have been carefully reviewed. Both of the reported results and the experimental results obtained by the present authors indicate that gravity force also plays an important role for crystal alignment under a high magnetic field. In this study, by taking account of magnetic susceptibility, powder shape and magnetic field direction, a general rule of crystal alignment during slip casting under a high magnetic field has been derived. (c) 2006 Elsevier B.V. All rights reserved.