Development of Mass Production of Ce0.9Gd0.1O1.95 Nanopowder with High-Sintering Characteristics

• Published in: Journal of the Ceramic Society of Japan Vol. 113; no. 1324; p. 793
• Main Authors: SUDA, Eisaku, MORI, Masashi, MURAI, Keiichiro, PACAUD, Bernard, MORIGA, Toshihiro
• Format: Journal Article
• Language: English
• Published: Tokyo Japan Science and Technology Agency 01.01.2005
• ISSN: 1882-0743; 1348-6535
• DOI: 10.2109/jcersj.113.793

The mass production process of Ce0.9Gd0.1O1.95 (CGO) nanopowder with high-sintering characteristics has been studied. Although CGO powders were fabricated using a large scale coprecipitation bath with a capacity of 65 kg/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 0.1 kg/batch. It was found that when the impurity of NO3 - in the powder was removed by water using the rate of 50 L/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.