Density Prediction of Uranium-6 Niobium Ingots [electronic resource]
Saved in:
| Online Access: |
Online Access |
|---|---|
| Corporate Author: | |
| Format: | Government Document Electronic eBook |
| Language: | English |
| Published: |
Washington, D.C : Oak Ridge, Tenn. :
United States. Dept. of Energy ; distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy,
2003.
|
| Subjects: |
| Abstract: | The densities of uranium-6 niobium (U-Nb) alloys have been compiled from a variety of literature sources such as Y-12 and Rocky Flats datasheets. We also took advantage of the 42 well-pedigreed, homogeneous baseline U-Nb alloys produced under the Enhanced Surveillance Program for density measurements. Even though U-Nb alloys undergo two-phase transitions as the Nb content varies from 0 wt. % to 8 wt %, the theoretical and measured densities vary linearly with Nb content. Therefore, the effect of Nb content on the density was modeled with a linear regression. From this linear regression, a homogeneous ingot of U-6 wt.% Nb would have a density of 17.382 ± 0.040 g/cc (95% CI). However, ingots produced at Y-12 are not homogeneous with respect to the Nb content. Therefore, using the 95% confidence intervals, the density of a Y-12 produced ingot would vary from 17.310 ± 0.043 g/cc at the center to 17.432 ± 0.039 g/cc at the edge. Ingots with larger Nb inhomogeneities will also have larger variances in the density. |
|---|---|
| Item Description: | Published through the Information Bridge: DOE Scientific and Technical Information. 04/15/2003. "la-14022-ms" E.J.Peterson; D.J.Thoma; D.F.Teter; P.K. Tubesing. |
| Physical Description: | 16 pages : digital, PDF file. |
| Type of Report and Period Covered Note: | Topical; |