Improvement of sinterability of gadolinia-doped ceria via a high-energy ball milling process

High-energy ball milling process has been applied to gadolinia-doped ceria system. The sinterability of gadolinia-doped ceria was significantly enhanced by the high-energy ball milling process. A comparison was also made of the sintering behavior of milled powders doped with gallia as a sintering ai...

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Bibliographic Details
Published in:Journal of materials science 2006-12, Vol.41 (23), p.7983-7988
Main Authors: LEE, Joo-Sin, CHOI, Kwang-Hoon, PARK, Min-Woo, KWAK, Dong-Joo, SHIN, Kwang-Ho, SHIN, Chun-Woo
Format: Article
Language:English
Subjects:
Applied sciences
Ball milling
Building materials. Ceramics. Glasses
Ceramic industries
Cerium gadolinium oxides
Cerium oxides
Chemical industry and chemicals
Electrotechnical and electronic ceramics
Energy
Energy. Thermal use of fuels
Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc
Exact sciences and technology
Fuel cells
Gadolinium oxides
Gallium oxides
Heat treating
Materials science
Sinterability
Sintering
Sintering (powder metallurgy)
Technical ceramics
Theoretical density
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Summary:High-energy ball milling process has been applied to gadolinia-doped ceria system. The sinterability of gadolinia-doped ceria was significantly enhanced by the high-energy ball milling process. A comparison was also made of the sintering behavior of milled powders doped with gallia as a sintering aid. Dense Ce0.8Gd0.2O1.9 ceramics with 97% of the theoretical density could be obtained by sintering the milled mixture with 0.5 mol% Ga2O3 addition at 1,250 °C for 5 h.
ISSN:0022-2461
1573-4803
DOI:10.1007/s10853-006-0860-7