Iodine Waste Form Corrosion [electronic resource] : PNNL Summary Testing Report.
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| Online Access: |
Full Text (via OSTI) |
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| Corporate Author: | |
| Format: | Government Document Electronic eBook |
| Language: | English |
| Published: |
Richland, Wash. : Oak Ridge, Tenn. :
Pacific Northwest National Laboratory (U.S.) ; Distributed by the Office of Scientific and Technical Information, U.S. Department of Energy,
2020.
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| Subjects: |
| Abstract: | A test method to correlate the laboratory corrosion behavior of iodine-containing waste forms (IWFs) to a conceptual long-term corrosion models is required. Several candidate methods have been evaluated previously, and each method presents unique challenges and limitations. Dynamic leach tests have emerged as the preferred candidate test method to evaluate IWFs and parameterize an eventual long-term corrosion model. This report was prepared in support of this effort to define the test suite to evaluate the corrosion of IWFs, with the goal of defining and parameterizing a conceptual long-term corrosion model. A review was presented highlighting the high degree of variability between the IWF corrosion data that is available in the literature and the need for a standardized test suite. The targeted test suite is composed of a single interval screening test, a dynamic leach test, and post-test solid characterization of the monolithic IWF samples. The data presented serves two purposes: to expand the range of IWFs evaluated with the test suite to assess method variability and to further understand the corrosion of IWFs to best inform conceptual long-term corrosion model development. A series of IWF types were included in the testing, including hot isostatically pressed Ag-mordenite, silver functionalized silica-based aerogels, iodosodalites (hot isostatic pressing, sintered, glass bonded ceramic), iodoapatite, tellurite glass and glass composite materials. |
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| Item Description: | Published through Scitech Connect. 07/31/2020. "PNNL-30127." Lawter, Amanda R. ; Avalos, Nancy M. ; Bonnett, Jeff F. ; Canfield, Nathan L. ; Bowden, Mark E. ; Seymour, Lorraine M. ; Saslow, Sarah A. ; Bourchy, Agathe LM ; Asmussen, Robert M. ; USDOE. |
| Physical Description: | Size: 82 p. : digital, PDF file. |