Triaxial Crystalline Orientation of MgTi₂O₅ Achieved Using a Strong Magnetic Field and Geometric Effect

Tailoring the crystallographic orientation in ceramics is very useful for improving their properties. We reported that the colloidal processing in a strong magnetic field was able to control the crystallographic orientation even in diamagnetic ceramics. In this process, a strong magnetic field is applied to the particles in a stable suspension. The orientation of the crystal depends on the axis having easy magnetization and one-dimensional orientation can be controlled. In this study, our concept is that control of multiaxial crystalline orientation in ceramics by using both anisometric particles and a magnetic field. The control of the triaxial orientation was achieved by tape casting of rod-like MgTi₂O₅ particle in a magnetic field. The b-axis was aligned by the magnetic field, and the a-axis was aligned by the geometric effect and shear stress during tape casting.