In Situ High Voltage Electron Microscopy Investigation of Catastrophic Swelling in Uranium Intermetallic Fuels / Robert C. Birtcher, Charles W. Allen, Gerard L. Hofman, Lynn E. Rehn
- Conference Author:
- Effects of Radiation on Materials: 14th International Symposium (14th : 1988 : Andover, MA)
- Physical Description:
- 1 online resource (7 pages) : illustrations, figures, tables
- Additional Creators:
- Rehn, L. E.
Allen, Charles W.
Birtcher, Robert C.
Hofman, Gerard L.
American Society for Testing and Materials
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- Uranium-based intermetallics are being developed as high-density reactor fuel materials for low-enrichment and high power-density applications. However, the irradiation performance of several alloys with high uranium content, such as U3Si and U3Fe, suffers from the formation of extraordinarily large voids (on the order of several ?m) at low or medium fuel burnup. This catastrophic swelling prohibits the use of the higher-density materials as reactor fuel. Similar alloys with slightly lower uranium content, such as U3Si2, develop a fine and stable dispersion of fission-gas bubbles (on the order of 10 nm) at low burnup, and catastrophic swelling does not occur. To investigate the mechanisms responsible for the breakaway swelling, and to define the range of applicability of intermetallic fuels with a high uranium content, the effects of burnup have been simulated by ion irradiation and implantation with 1 MeV krypton (Kr), and continuous in situ observations have been made by transmission electron microscopy (TEM).
- Dates of Publication and/or Sequential Designation:
- Volume 1990, Issue 1046V2 (January 1990)
- 9780803188877 (e-ISBN)
- Digital File Characteristics:
- text file PDF
- Bibliography Note:
- Includes bibliographical references 19.
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- Also available online via the World Wide Web. Tables of contents and abstracts freely available; full-text articles available by subscription.
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- Electronic reproduction. W. Conshohocken, Pa. : ASTM International, 1990. Mode of access: World Wide Web. System requirements: Web browser. Access may be restricted to users at subscribing institutions.
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- Mode of access: World Wide Web.
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- ASTM International PDF Purchase price USD25.
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