Experimental studies of laser-ablated zirconium carbide plasma plumes: Fuel corrosion diagnostic development

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Understanding the corrosion behavior of nuclear fuel materials, such as refractory carbides, in a high temperature hydrogen environment is critical for several proposed nuclear thermal propulsion (NTP) concepts. Monitoring the fuel corrosion products is important not only for understanding corrosion characteristics, but to assess the performance of an actual, operating nuclear propulsion system as well. In this paper, we describe an experimental study initiated to develop, test, and subsequently utilize non-intrusive, laser-based diagnostics to characterize the gaseous product species which are expected to evolve during the exposure of representative fuel samples to hydrogen. Laser ablation is used to produce high ... continued below

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Wantuck, P.J.; Butt, D.P. & Sappey, A.D. January 1, 1992.

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Description

Understanding the corrosion behavior of nuclear fuel materials, such as refractory carbides, in a high temperature hydrogen environment is critical for several proposed nuclear thermal propulsion (NTP) concepts. Monitoring the fuel corrosion products is important not only for understanding corrosion characteristics, but to assess the performance of an actual, operating nuclear propulsion system as well. In this paper, we describe an experimental study initiated to develop, test, and subsequently utilize non-intrusive, laser-based diagnostics to characterize the gaseous product species which are expected to evolve during the exposure of representative fuel samples to hydrogen. Laser ablation is used to produce high temperature, vapor plumes from solid solution, uranium-free, zirconium carbide (ZrC) forms for probing by other laser diagnostic methods; predominantly laser-induced fluorescence (LIF). We discuss the laser ablation technique, results of plume emission measurements, as well as the use of planar LIF to image both the ZrC plumes and actual NTP fuel corrosion constituents.

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Pages: (15 p)

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OSTI; NTIS; INIS; GPO Dep.

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  • Nuclear technologies for space exploration, Jackson, WY (United States), 16-19 Aug 1992

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  • Other: DE92015148
  • Report No.: LA-UR-92-1557
  • Report No.: CONF-920803--7
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 5211837
  • Archival Resource Key: ark:/67531/metadc1058377

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Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • January 1, 1992

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  • Jan. 22, 2018, 7:23 a.m.

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  • Feb. 1, 2018, 7:03 p.m.

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Wantuck, P.J.; Butt, D.P. & Sappey, A.D. Experimental studies of laser-ablated zirconium carbide plasma plumes: Fuel corrosion diagnostic development, article, January 1, 1992; New Mexico. (digital.library.unt.edu/ark:/67531/metadc1058377/: accessed September 25, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.