Performance of CVR coatings for PBR fuels

Adams, J W; Barletta, R E; Svandrlik, J; Vanier, P E

doi:10.2172/10115283

Title: Performance of CVR coatings for PBR fuels

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Abstract

As part of the component development process for the particle bed reactor (PBR), it is necessary to develop coatings for fuel particles which will be time and temperature stable. These coatings must not only protect the particle from attack by the hydrogen coolant, but must also help to maintain the bed in a coolable geometry and mitigate against fission product release. In order to develop these advanced coatings, a process to produce chemical vapor reaction (CVR) coatings on fuel for PBRs has been developed. The initial screening tests for these coatings consisted of testing in flowing hot hydrogen at one atmosphere. Surrogate fuel particles consisting of pyrolytic graphite coated graphite particles have been heated in flowing hydrogen at constant temperature. The carbon loss from these particles was measured as a function of time. Exposure temperatures ranging from 2,500 to 3,000 K were used and samples were exposed for up to 14 minutes in a cyclical fashion, cooling to room temperature between exposures. The rate of weight loss measured as a function of time is compared to that from other tests of coated materials under similar conditions. Microscopic examination of the coatings before and after exposure was also conducted and thesemore » results are presented.« less

Authors:: Adams, J W; Barletta, R E; Svandrlik, J; Vanier, P E

Publication Date:: Fri Dec 31 00:00:00 EST 1993

Research Org.:: Brookhaven National Lab. (BNL), Upton, NY (United States)

Sponsoring Org.:: Department of Defense, Washington, DC (United States)

OSTI Identifier:: 10115283

Report Number(s):: BNL-49297; CONF-931108-42
ON: DE94005192; TRN: AHC29403%%4

DOE Contract Number:: AC02-76CH00016

Resource Type:: Technical Report

Resource Relation:: Conference: Fall meeting of the Materials Research Society (MRS),Boston, MA (United States),29 Nov - 3 Dec 1993; Other Information: PBD: [1993]

Country of Publication:: United States

Language:: English

Subject:: 21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; 36 MATERIALS SCIENCE; SPACE PROPULSION REACTORS; COATED FUEL PARTICLES; FUEL DISPERSION REACTORS; NIOBIUM CARBIDES; CHEMICAL VAPOR DEPOSITION; HYDRIDATION; TANTALUM CARBIDES; CORROSION RESISTANCE; EXPERIMENTAL DATA; NESDPS Office of Nuclear Energy Space and Defense Power Systems; 210600; 360201; 360205; POWER REACTORS, MOBILE, PROPULSION, PACKAGE, AND TRANSPORTABLE; PREPARATION AND FABRICATION; CORROSION AND EROSION

Citation Formats


                    Adams, J W, Barletta, R E, Svandrlik, J, and Vanier, P E. Performance of CVR coatings for PBR fuels.  United States: N. p., 1993. 
        Web.  doi:10.2172/10115283.

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                    Adams, J W, Barletta, R E, Svandrlik, J, & Vanier, P E. Performance of CVR coatings for PBR fuels.  United States.  https://doi.org/10.2172/10115283

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                    Adams, J W, Barletta, R E, Svandrlik, J, and Vanier, P E. 1993.  
        "Performance of CVR coatings for PBR fuels".  United States.  https://doi.org/10.2172/10115283.  https://www.osti.gov/servlets/purl/10115283.

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@article{osti_10115283,

  title        = {Performance of CVR coatings for PBR fuels},

  author       = {Adams, J W and Barletta, R E and Svandrlik, J and Vanier, P E},

  abstractNote = {As part of the component development process for the particle bed reactor (PBR), it is necessary to develop coatings for fuel particles which will be time and temperature stable. These coatings must not only protect the particle from attack by the hydrogen coolant, but must also help to maintain the bed in a coolable geometry and mitigate against fission product release. In order to develop these advanced coatings, a process to produce chemical vapor reaction (CVR) coatings on fuel for PBRs has been developed. The initial screening tests for these coatings consisted of testing in flowing hot hydrogen at one atmosphere. Surrogate fuel particles consisting of pyrolytic graphite coated graphite particles have been heated in flowing hydrogen at constant temperature. The carbon loss from these particles was measured as a function of time. Exposure temperatures ranging from 2,500 to 3,000 K were used and samples were exposed for up to 14 minutes in a cyclical fashion, cooling to room temperature between exposures. The rate of weight loss measured as a function of time is compared to that from other tests of coated materials under similar conditions. Microscopic examination of the coatings before and after exposure was also conducted and these results are presented.},

  doi          = {10.2172/10115283},

  url          = {https://www.osti.gov/biblio/10115283},
  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Fri Dec 31 00:00:00 EST 1993},

  month        = {Fri Dec 31 00:00:00 EST 1993}

}

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