High-sinterability MgAI2O4 powder has been produced from alkoxide precursors via a freeze-drying method. Clear alumina sol and magnesium methoxide were used as starting materials in the process. The spinel powders were characterized by various techiques, such as thermal analysis, X-ray diffraction, scanning electron microscopy, and transmission electron microscopy. The tap density and sinterability of the spinel power are affected by the ballmilling techniques. Highly dense, transpiarent, polycrystalline MgA1204 has been obtained from these powders by sintering and hot isostatic pressing. Bimodal grain-size microstructure is observed in a HIPed sample. [

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We have found that the soft magnetic properties of FeN/AlN laminated films do not degrade on sloping surfaces. The easy axis coercivities of FeN/AlN multilayer films are approximately 1.5 Oe and have little variation with slope angle, α. The anisotropy fields slightly vary from 13 to 17 Oe when the slope angles (α) change from 0° to 60°. In contrast, single layer FeN films show a significant degradation of soft magnetic properties with the slope angle. Residual stress does not have a significant correlation with magnetic properties. The large coercivities and saturation fields in the single layer FeN films can be ascribed to a change in the (110) texture of the films.