抄録
Making processes of a spinel-ferrite having a cube-texture were studied with examining (i) an anisotropic grain-orientation of raw-material powders informing process and (ii) a topotactic reaction in hot-press sintering. Followings are described, 1) fabrication of raw-material, a-FeOOH and y-MnOOH, having a large and well-defined shape, 2) observation of powder-orientation in forming process by SEM, 3) decomposition, ferrite-formation and orientation of ferrite powders in hot-press sintering, and 4) measurements of grain orientation by X-ray analysis. In this study, a hot-pressed Mn-ferrite having 72% orientation of <110>-axis and 58% of <111>-axis was obtained.
