抄録
One-dimensional NiO and CeO_2 crystals were successfully grown by the cooling of chloride flux. NiCl_2・6H_2O or CeCl_3・nH_2O powders were used as the solute, and LiCl and KCl were chosen as the flux. The mixtures were heated to 700-900℃ for 10 h, and then cooled to 350℃ at rate of 200℃-h^<-1>. The NiO crystals had average sizes up to 481×3.65 μm. The morphology of the CeO_2 crystals clearly depended on the growth conditions, such as the holding temperature and Ce concentration. From X-ray diffraction pattern, the one-dimensional NiO and CeO_2 crystals elongated in the <100> directions.
