マイクロエマルションチャーリング法によるBaTiO_3微粒子の合成(第1報)

概要

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Ultrafine BaTiO_3 particles were prepared by micro-emulsion charring method(MEC method). The MEC method consisted of two steps. The first steps is preparation of water/oil micro-emulsion with BaTiO_3 elements. And the second is low temperature firing process in N_2 atmosphere, which includes charring of oil in emulsion and powdering BaTiO_3 particls with char. The char formed around BaTiO_3 particles prevent an agglomeration of BaTiO_3 particles during firing. In the present experiment, the W/O ratio and an amount of emulsifier greatly influenced on size of droplets of emulsion. The charring temperature was another important experimental factor in order to obtain desired BaTiO_3 particles. Finally obtained BaTiO_3 charring powders were monodispersed spherical particles and particle size was 0.1 μm to 0.5 μm.
社団法人日本セラミックス協会の論文
1999-09-01