2004 Volume 45 Issue 11 Pages 3124-3129
A novel process where a specimen is rotated during a slip casting under a high magnetic field has been proposed to fabricate highly textured ceramics. The usefulness of the newly proposed process has been confirmed in Si3N4 ceramics processing. In the substance which the magnetic susceptibility in a, b axis is higher than that in c-axis, χc < χa,b, one directional crystal orientation can not be obtained in a slip casting under a high magnetic field because the free choice of crystal orientation exists in a, b axis. The one directional crystal orientation of Si3N4 with χc < χa,b has successfully been demonstrated in the new processing. The novel concept will provide a wide application to control the crystal orientation in various substances with the magnetic anisotropy of χc < χa,b.