scholarly journals Yucca Mountain Project - Argonne National Laboratory annual progress report, FY 1994

10.2172/67733 ◽  
1995 ◽  
Author(s):  
J.K. Bates ◽  
J.A. Fortner ◽  
P.A. Finn ◽  
D.J. Wronkiewicz ◽  
J.C. Hoh ◽  
...  



Author(s):  
Edgar C. Buck ◽  
Nancy L. Dietz ◽  
John K. Bates

Direct disposal of spent nuclear fuel (SNF) into the proposed unsaturated geologic repository at Yucca Mountain, NV is being studied at several laboratories, including Argonne National Laboratory. Corrosion tests with SNF are being conducted to understand the long-term behavior of SNF under conditions designed to simulate the unsaturated conditions at the site. The SNF used in this study was the Approved Testing Material (ATM)-106 with a bum-up of 43 MW·d/kg U. A sample of ATM-106 fuel was exposed to dripping simulated groundwater for 271 days; after this time the experiment was terminated and the material removed for further study. Details of the testing methodology have been given by Finn et al.,.Previous attempts to study SNF with TEM have used ion milled samples, in this study we prepared the samples by ultramicrotomy which reduced the radiological hazard substantially.



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