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

Choi, K; Reavis, R E; Osterberg, D D; Jacques, B J; Butt, D P; Mariani, R D; Burkes, D E; Munir, Z A

doi:10.1111/j.1551-2916.2011.05054.x

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

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Abstract

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 (SPS) parameters. The addition of Dy2O3 (forming a solid solution) resulted in an increase in relative density and a decrease in grain size. The relative density of samples with Dy2O3 content of 6 and 10 mol% was over 95% when sintered at 1050 C under 500 MPa for holding times as short as 5 minutes. 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.

Authors:: Choi, K; Reavis, R E; Osterberg, D D; Jacques, B J; Butt, D P; Mariani, R D; Burkes, D E; Munir, Z A

Publication Date:: Tue May 01 00:00:00 EDT 2012

Research Org.:: Idaho National Lab. (INL), Idaho Falls, ID (United States)

Sponsoring Org.:: DOE - NE

OSTI Identifier:: 1045494

Report Number(s):: INL/JOU-11-22991
Journal ID: ISSN 0002-7820; JACTAW; TRN: US1203626

DOE Contract Number:: DE-AC07-05ID14517

Resource Type:: Journal Article

Journal Name:: Journal of the American Ceramic Society

Additional Journal Information:: Journal Volume: 95; Journal Issue: 5; Journal ID: ISSN 0002-7820

Country of Publication:: United States

Language:: English

Subject:: 11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; ADDITIVES; CERAMICS; GRAIN GROWTH; GRAIN SIZE; HEATING RATE; MICROSTRUCTURE; PLASMA; SINTERING; SOLID SOLUTIONS; Doped Ceria; Dysprosia; Sintering; SPS

Citation Formats


                    Choi, K, Reavis, R E, Osterberg, D D, Jacques, B J, Butt, D P, Mariani, R D, Burkes, D E, and Munir, Z A. Effect of Dysprosia Additive on the Consolidation of CeO2 by Spark Plasma Sintering.  United States: N. p., 2012. 
        Web.  doi:10.1111/j.1551-2916.2011.05054.x.

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                    Choi, K, Reavis, R E, Osterberg, D D, Jacques, B J, Butt, D P, Mariani, R D, Burkes, D E, & Munir, Z A. Effect of Dysprosia Additive on the Consolidation of CeO2 by Spark Plasma Sintering.  United States.  https://doi.org/10.1111/j.1551-2916.2011.05054.x

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                    Choi, K, Reavis, R E, Osterberg, D D, Jacques, B J, Butt, D P, Mariani, R D, Burkes, D E, and Munir, Z A. 2012.  
        "Effect of Dysprosia Additive on the Consolidation of CeO2 by Spark Plasma Sintering".  United States.  https://doi.org/10.1111/j.1551-2916.2011.05054.x.

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@article{osti_1045494,

  title        = {Effect of Dysprosia Additive on the Consolidation of CeO2 by Spark Plasma Sintering},

  author       = {Choi, K and Reavis, R E and Osterberg, D D and Jacques, B J and Butt, D P and Mariani, R D and Burkes, D E and Munir, Z A},

  abstractNote = {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 (SPS) parameters. The addition of Dy2O3 (forming a solid solution) resulted in an increase in relative density and a decrease in grain size. The relative density of samples with Dy2O3 content of 6 and 10 mol% was over 95% when sintered at 1050 C under 500 MPa for holding times as short as 5 minutes. 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.},

  doi          = {10.1111/j.1551-2916.2011.05054.x},

  url          = {https://www.osti.gov/biblio/1045494},
  journal      = {Journal of the American Ceramic Society},

  issn         = {0002-7820},

  number       = 5,

  volume       = 95,

  place        = {United States},

  year         = {Tue May 01 00:00:00 EDT 2012},

  month        = {Tue May 01 00:00:00 EDT 2012}

}

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