Effect of Dysprosia Additive on the Consolidation of CeO2 by Spark Plasma Sintering

被引：7

作者：

Choi, Kwanghoon ^{[1
]}

Reavis, Richard E. ^{[2
]}

Osterberg, Daniel D. ^{[2
]}

Jaques, Brian J. ^{[2
]}

Butt, Darryl P. ^{[2
]}

Mariani, Robert D. ^{[3
]}

Burkes, Douglas E. ^{[3
]}

Munir, Zuhair A. ^{[1
]}

机构：

[1] Univ Calif Davis, Dept Chem Engn & Mat Sci, Davis, CA 95616 USA

[2] Boise State Univ, Dept Mat Sci & Engn, Boise, ID 83725 USA

[3] Idaho Natl Lab, Idaho Falls, ID 83415 USA

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2012年 / 95卷 / 05期

关键词：

TETRAGONAL ZIRCONIA POLYCRYSTALS; GRAIN-GROWTH; ELECTRIC-FIELD; PLASTIC-DEFORMATION; HEATING RATE; CERIA; KINETICS; CERAMICS; PRESSURE; DENSIFICATION;

D O I：

10.1111/j.1551-2916.2011.05054.x

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The influence of dysprosia addition on the sintering and resulting microstructure of nano-grained CeO2 ceramics was investigated as functions of the spark plasma sintering parameters. The addition of Dy2O3 (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 Dy2O3 content of 6 and 10mol% was over 95% when sintered at 1050 degrees C under 500MPa for holding times as short as 5min. 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.

引用

页码：1524 / 1529

页数：6

共 46 条

[1] Fast low-temperature consolidation of bulk nanometric ceramic materials [J].

Anselmi-Tamburini, U ;

Garay, JE ;

Munir, ZA .

SCRIPTA MATERIALIA, 2006, 54 (05) :823-828

[2] Spark plasma sintering and characterization of bulk nanostructured fully stabilized zirconia: Part I. Densification studies [J].

Anselmi-Tamburini, U ;

Garay, JE ;

Munir, ZA ;

Tacca, A ;

Maglia, F ;

Spinolo, G .

JOURNAL OF MATERIALS RESEARCH, 2004, 19 (11) :3255-3262

[3] Effects of cobalt metal addition on sintering and ionic conductivity of Sm(Y)-doped ceria solid electrolyte for SOFC [J].

Ayawanna, Jiratchaya ;

Wattanasiriwech, Darunee ;

Wattanasiriwech, Suthee ;

Aungkavattana, Pavadee .

SOLID STATE IONICS, 2009, 180 (26-27) :1388-1394

[4] Effect of particle size in aggregated and agglomerated ceramic powders [J].

Balakrishnan, A. ;

Pizette, P. ;

Martin, C. L. ;

Joshi, S. V. ;

Saha, B. P. .

ACTA MATERIALIA, 2010, 58 (03) :802-812

[5] Preparation, sintering and electrical properties of nano-grained multidoped ceria [J].

Boskovic, S. ;

Zec, S. ;

Brankovic, G. ;

Brankovic, Z. ;

Devecerski, A. ;

Matovic, B. ;

Aldinger, F. .

CERAMICS INTERNATIONAL, 2010, 36 (01) :121-127

[6] YTTRIA-CERIA STABILIZED TETRAGONAL ZIRCONIA POLYCRYSTALS - SINTERING, GRAIN-GROWTH AND GRAIN-BOUNDARY SEGREGATION [J].

BOUTZ, MMR ;

WINNUBST, AJA ;

BURGGRAAF, AJ .

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 1994, 13 (02) :89-102

[7] CHARACTERIZATION OF GRAIN-BOUNDARIES IN SUPERPLASTICALLY DEFORMED Y-TZP CERAMICS [J].

BOUTZ, MMR ;

CHEN, CS ;

WINNUBST, L ;

BURGGRAAF, AJ .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1994, 77 (10) :2632-2640

[8] Sintering dense nanocrystalline ceramics without final-stage grain growth [J].

Chen, IW ;

Wang, XH .

NATURE, 2000, 404 (6774) :168-171

[9] Grain boundary kinetics in oxide ceramics with the cubic fluorite crystal structure and its derivatives [J].

Chen, IW .

INTERFACE SCIENCE, 2000, 8 (2-3) :147-156

[10] Densification of nano-CeO2 ceramics as nuclear oxide surrogate by spark plasma sintering [J].

Choi, Kwanghoon ;

Tong, Wen ;

Maiani, Robert D. ;

Burkes, Douglas E. ;

Munir, Zuhair A. .

JOURNAL OF NUCLEAR MATERIALS, 2010, 404 (03) :210-216

← 1 2 3 4 5 →