TY - JOUR
T1 - Effect of dysprosia additive on the consolidation of CeO 2 by spark plasma sintering
AU - Choi, Kwanghoon
AU - Reavis, Richard E.
AU - Osterberg, Daniel D.
AU - Jaques, Brian J.
AU - Butt, Darryl P.
AU - Mariani, Robert D.
AU - Burkes, Douglas E.
AU - Munir, Zuhair A.
PY - 2012/5
Y1 - 2012/5
N2 - The influence of dysprosia addition on the sintering and resulting microstructure of nano-grained CeO 2 ceramics was investigated as functions of the spark plasma sintering parameters. The addition of Dy 2O 3 (forming a solid solution) resulted in an increase in relative density and a decrease in grain size in sintered samples. The relative density of samples with Dy 2O 3 content of 6 and 10 mol% was over 95% when sintered at 1050°C under 500 MPa for holding times as short as 5 min. The application of high pressure facilitated the consolidation to relatively high densities with minimal grain growth. Heating rate and holding time, however, had insignificant effect on density but a measurable effect on grain size.
AB - The influence of dysprosia addition on the sintering and resulting microstructure of nano-grained CeO 2 ceramics was investigated as functions of the spark plasma sintering parameters. The addition of Dy 2O 3 (forming a solid solution) resulted in an increase in relative density and a decrease in grain size in sintered samples. The relative density of samples with Dy 2O 3 content of 6 and 10 mol% was over 95% when sintered at 1050°C under 500 MPa for holding times as short as 5 min. The application of high pressure facilitated the consolidation to relatively high densities with minimal grain growth. Heating rate and holding time, however, had insignificant effect on density but a measurable effect on grain size.
UR - http://www.scopus.com/inward/record.url?scp=84861100157&partnerID=8YFLogxK
U2 - 10.1111/j.1551-2916.2011.05054.x
DO - 10.1111/j.1551-2916.2011.05054.x
M3 - Article
AN - SCOPUS:84861100157
SN - 0002-7820
VL - 95
SP - 1524
EP - 1529
JO - Journal of the American Ceramic Society
JF - Journal of the American Ceramic Society
IS - 5
ER -