Abstract
Microstructure with grain orientation has a high potential for greatly improving characteristics of ceramic. However, there has been strong restriction on processing and material for developing this structure. In recent years, much attention has been paid on the effect of high magnetic field on diamagnetic materials. Many ceramic materials are known to be diamagnetic. High magnetic field has a high potential to orient grains. This study uses alumina as raw materials, and produces alumina ceramics with orientated grain in high magnetic field (10T). The oriented grain structure in the samples was examined with XRD and novel polarized light microscopy analysis. Alumina grains were oriented by high magnetic field (10T). The c-axis of the alumina grain were aligned along the direction of magnetic field. This result can be identified by XRD and the novel polarized light microscope by the liquid immersion technique.
