Effect of dysprosia additive on the consolidation of CeO 2 by spark plasma sintering

Kwanghoon Choi; Richard E. Reavis; Daniel D. Osterberg; Brian J. Jaques; Darryl P. Butt; Robert D. Mariani; Douglas E. Burkes; Zuhair A. Munir

doi:10.1111/j.1551-2916.2011.05054.x

Effect of dysprosia additive on the consolidation of CeO ₂ by spark plasma sintering

Kwanghoon Choi
, Richard E. Reavis
, Daniel D. Osterberg
, Brian J. Jaques
, Darryl P. Butt
, Robert D. Mariani
, Douglas E. Burkes
, Zuhair A. Munir

Micron School of Materials Science and Engineering

University of California at Davis
Boise State University
Idaho National Laboratory
Pacific Northwest National Laboratory

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

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.

Original language	English
Pages (from-to)	1524-1529
Number of pages	6
Journal	Journal of the American Ceramic Society
Volume	95
Issue number	5
DOIs	https://doi.org/10.1111/j.1551-2916.2011.05054.x
State	Published - May 2012

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title = "Effect of dysprosia additive on the consolidation of CeO 2 by spark plasma sintering",

abstract = "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.",

author = "Kwanghoon Choi and Reavis, \{Richard E.\} and Osterberg, \{Daniel D.\} and Jaques, \{Brian J.\} and Butt, \{Darryl P.\} and Mariani, \{Robert D.\} and Burkes, \{Douglas E.\} and Munir, \{Zuhair A.\}",

year = "2012",

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doi = "10.1111/j.1551-2916.2011.05054.x",

language = "English",

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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.

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DO - 10.1111/j.1551-2916.2011.05054.x

M3 - Article

AN - SCOPUS:84861100157

SN - 0002-7820

VL - 95

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JO - Journal of the American Ceramic Society

JF - Journal of the American Ceramic Society

IS - 5

ER -

Effect of dysprosia additive on the consolidation of CeO ₂ by spark plasma sintering

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