Oxygen concentration measurement in liquid lead-bismuth eutectic

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Description

Liquid lead-bismuth (Pb-Bi) eutectic (LBE) may see extensive use as a coolant fluid, and perhaps also as a spallation target, in next generation nuclear energy systems. While it is not as reactive as alkali metal liquids, it does present a long term corrosion problem with some materials, notably stainless steels. Mitigation of the corrosion problem may be achieved by producing and maintaining a protective oxide on exposed surfaces, through control of the concentration of dissolved oxygen in the LBE. We have developed an oxygen sensor based on available zirconia-based solid electrolytes used in the automotive industry, which represents a relatively ... continued below

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6 p.

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Darling, T. W. (Timothy W.) & Li, N. (Ning) January 1, 2001.

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Description

Liquid lead-bismuth (Pb-Bi) eutectic (LBE) may see extensive use as a coolant fluid, and perhaps also as a spallation target, in next generation nuclear energy systems. While it is not as reactive as alkali metal liquids, it does present a long term corrosion problem with some materials, notably stainless steels. Mitigation of the corrosion problem may be achieved by producing and maintaining a protective oxide on exposed surfaces, through control of the concentration of dissolved oxygen in the LBE. We have developed an oxygen sensor based on available zirconia-based solid electrolytes used in the automotive industry, which represents a relatively inexpensive source of reproducible and reliable components. We will present the design considerations and characteristics of our sensor unit, and describe its use in the LBE test loop at Los Alamos for measurement and control of dissolved oxygen concentration.

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6 p.

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  • Submitted to: Proceedings of the ACCApp/ADTTA 01 Nuclear Applications in the New Millenium Meeting, Reno, Nevada, November 11-15, 2001

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  • Report No.: LA-UR-01-4486
  • Grant Number: none
  • Office of Scientific & Technical Information Report Number: 975687
  • Archival Resource Key: ark:/67531/metadc925971

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • January 1, 2001

Added to The UNT Digital Library

  • Nov. 13, 2016, 7:26 p.m.

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  • Dec. 12, 2016, 12:43 p.m.

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Darling, T. W. (Timothy W.) & Li, N. (Ning). Oxygen concentration measurement in liquid lead-bismuth eutectic, article, January 1, 2001; United States. (digital.library.unt.edu/ark:/67531/metadc925971/: accessed November 15, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.