X-ray gauge monitoring of LLNL replica carbon production process [electronic resource].
- Washington, D.C : United States. Dept. of Energy. Office of the Assistant Secretary for Defense Programs, 1990.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
- Physical Description:
- Pages: (12 pages) : digital, PDF file
- Additional Creators:
- Lawrence Livermore National Laboratory
United States. Department of Energy. Office of the Assistant Secretary for Defense Programs
United States. Department of Energy. Office of Scientific and Technical Information
- This report contains results of a series of x-ray gauging measurements performed on bars tracked through the LLNL replica carbon production process. We were tasked with monitoring a few salt bars through the entire production process to identify any possible problem areas. The process consists of five major steps: pressing fine sodium chloride crystals into a uniform salt bar, sintering the salt bar, infusing the bar with a phenolic polymer solution and convection oven drying it to remove the acetone solvent, carbonizing the polymer, and extracting the salt with water and freeze-drying the final carbon foam bar. After pressing the salt bars, six typical bars were selected for characterization: LS1875, LS1876, LS1879, LS1881, LS1883, and LS1886. These six bars were to gauged after each of the five production steps to check for any inhomogeneity introductions. Two of the bars, however, were damaged during the final production step, resulting in complete process information for only four of the six bars. This report contains only the information gathered for these four bars. The data obtained for the other two bars, prior to damage, showed no significant difference from the data presented here.
- Published through SciTech Connect.
- Funding Information:
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