易焼結性Ce_<0.9>Gd_<0.1>O_<1.95>ナノ粒子の量産技術の開発

概要

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The mass production process of Ce_<0.9>Gd_<0.1>O_<1.95>(CGO) nanopowder with high-sintering characteristics has been studied. Although CGO powders were fabricated using a large scale coprecipitation bath with a capacity of 65kg/batch, particle size distribution curve of this powder showed two peaks for the agglomeration and this powder showed lower sintering characteristics, compared to the CGO nanopowder by a small scale bath with a capacity of 0.1kg/batch. It was found that when the impurity of NO_3^- in the powder was removed by water using the rate of 50L/kg, the formation of oval shape particles was observed and it is easy to crush the agglomerations in the powder by hammer-type mill. The sintering characteristics of this powder are almost same to those of the powder synthesized by the small scale bath.
社団法人日本セラミックス協会の論文
2005-12-01