Transmission Electron Microscopy Characterization of Helium Bubbles in Aged Plutonium

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The self-irradiation damage generated by alpha decay of plutonium results in the formation of lattice defects, helium, and uranium atoms. Over time, microstructural evolution resulting from the self-irradiation may influence the physical and mechanical properties of the material. In order to assess microstructural changes, we have developed and applied procedures for the specimen preparation, handling, and transmission electron microscopy characterization of Pu alloys. These transmission electron microscopy investigations of Pu-Ga alloys ranging in age up to 42-years old reveal the presence of nanometer-sized helium bubbles. The number density of bubbles and the average size have been determined for eight different … continued below

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Schwartz, A J; Wall, M A; Zocco, T G & Blobaum, K M November 2, 2004.

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This article is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by the UNT Libraries Government Documents Department to the UNT Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 78 times. More information about this article can be viewed below.

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The self-irradiation damage generated by alpha decay of plutonium results in the formation of lattice defects, helium, and uranium atoms. Over time, microstructural evolution resulting from the self-irradiation may influence the physical and mechanical properties of the material. In order to assess microstructural changes, we have developed and applied procedures for the specimen preparation, handling, and transmission electron microscopy characterization of Pu alloys. These transmission electron microscopy investigations of Pu-Ga alloys ranging in age up to 42-years old reveal the presence of nanometer-sized helium bubbles. The number density of bubbles and the average size have been determined for eight different aged materials.

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PDF-file: 14 pages; size: 3.3 Mbytes

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  • Journal Name: Materialovedenie, vol. 7, N/A, June 30, 2005, pp. 42-53; Journal Volume: 7

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  • Report No.: UCRL-JRNL-207738
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 936441
  • Archival Resource Key: ark:/67531/metadc899513

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  • November 2, 2004

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  • Sept. 27, 2016, 1:39 a.m.

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  • Dec. 9, 2016, 7:29 p.m.

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Schwartz, A J; Wall, M A; Zocco, T G & Blobaum, K M. Transmission Electron Microscopy Characterization of Helium Bubbles in Aged Plutonium, article, November 2, 2004; Livermore, California. (https://digital.library.unt.edu/ark:/67531/metadc899513/: accessed April 25, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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