Evaporation monitoring and composition control of alloy systems with widely differing vapor pressures

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Lawrence Livermore National Laboratory is developing sensors and controls to improve and extend electron beam materials processing technology to alloy systems with constituents of widely varying vapor pressure. The approach under development involves using tunable lasers to measure the density and composition of the vapor plume. A laser based vaporizer control system for vaporization of a uranium-iron alloy has been previously demonstrated in multi-hundred hour, high rate vaporization experiments at LLNL. This paper reviews the design and performance of the uranium vaporization sensor and control system and discusses the extension of the technology to monitoring of uranium vaporization. Data is ... continued below

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13 p.

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Anklam, T.M.; Berzins, L.V.; Braun, D.G.; Haynam, C.; McClelland, M.A. & Meier, T. October 1, 1994.

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Description

Lawrence Livermore National Laboratory is developing sensors and controls to improve and extend electron beam materials processing technology to alloy systems with constituents of widely varying vapor pressure. The approach under development involves using tunable lasers to measure the density and composition of the vapor plume. A laser based vaporizer control system for vaporization of a uranium-iron alloy has been previously demonstrated in multi-hundred hour, high rate vaporization experiments at LLNL. This paper reviews the design and performance of the uranium vaporization sensor and control system and discusses the extension of the technology to monitoring of uranium vaporization. Data is presented from an experiment in which titanium wire was fed into a molten niobium pool. Laser data is compared to deposited film composition and film cross sections. Finally, the potential for using this technique for composition control in melting applications is discussed.

Physical Description

13 p.

Notes

INIS; OSTI as DE95011764

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  • 11. electron beam melting and refining conference - state of the art 1994, Reno, NV (United States), 30 Oct - 1 Nov 1994

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  • Other: DE95011764
  • Report No.: UCRL-JC--117890
  • Report No.: CONF-9410109--1
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 82506
  • Archival Resource Key: ark:/67531/metadc782786

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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.

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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  • October 1, 1994

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  • Dec. 3, 2015, 9:30 a.m.

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  • Feb. 16, 2016, 7:02 p.m.

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Anklam, T.M.; Berzins, L.V.; Braun, D.G.; Haynam, C.; McClelland, M.A. & Meier, T. Evaporation monitoring and composition control of alloy systems with widely differing vapor pressures, article, October 1, 1994; California. (digital.library.unt.edu/ark:/67531/metadc782786/: accessed November 18, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.