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Title: Supercooling of Hydrogen on Template Materials to Deterministically Seed Ignition-Quality Solid Fuel Layers

Abstract

In this study, we explored templating effects of various materials for hydrogen (H 2 and D 2) solidification by measuring the degree of supercooling required for liquid hydrogen to solidify below each triple point. The results show high supercooling (>100 mK) for most metallic, covalent, and ionic solids, and low supercooling (<100 mK) for van der Waals (vdW) solids. We attribute the low supercooling of vdW solids to the weak interaction of the substrate and hydrogen. Highly ordered pyrolytic graphite showed the lowest supercooling among materials that are solid at room temperature, but did not exhibit a templating effect within a fill-tube and capsule assembly.

Authors:
 [1];  [1];  [1];  [1]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1341942
Report Number(s):
LLNL-JRNL-705308
Journal ID: ISSN 1536-1055; TRN: US1701670
Grant/Contract Number:
AC52-07NA27344
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Fusion Science and Technology
Additional Journal Information:
Journal Volume: 70; Journal Issue: 2; Journal ID: ISSN 1536-1055
Publisher:
American Nuclear Society
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 36 MATERIALS SCIENCE; Hydrogen solidification; D-T; inertial confinement fusion

Citation Formats

Shin, S. J., Zepeda-Ruiz, L. A., Lee, J. R. I., and Baxamusa, S. H.. Supercooling of Hydrogen on Template Materials to Deterministically Seed Ignition-Quality Solid Fuel Layers. United States: N. p., 2016. Web. doi:10.13182/FST15-212.
Shin, S. J., Zepeda-Ruiz, L. A., Lee, J. R. I., & Baxamusa, S. H.. Supercooling of Hydrogen on Template Materials to Deterministically Seed Ignition-Quality Solid Fuel Layers. United States. doi:10.13182/FST15-212.
Shin, S. J., Zepeda-Ruiz, L. A., Lee, J. R. I., and Baxamusa, S. H.. 2016. "Supercooling of Hydrogen on Template Materials to Deterministically Seed Ignition-Quality Solid Fuel Layers". United States. doi:10.13182/FST15-212. https://www.osti.gov/servlets/purl/1341942.
@article{osti_1341942,
title = {Supercooling of Hydrogen on Template Materials to Deterministically Seed Ignition-Quality Solid Fuel Layers},
author = {Shin, S. J. and Zepeda-Ruiz, L. A. and Lee, J. R. I. and Baxamusa, S. H.},
abstractNote = {In this study, we explored templating effects of various materials for hydrogen (H2 and D2) solidification by measuring the degree of supercooling required for liquid hydrogen to solidify below each triple point. The results show high supercooling (>100 mK) for most metallic, covalent, and ionic solids, and low supercooling (<100 mK) for van der Waals (vdW) solids. We attribute the low supercooling of vdW solids to the weak interaction of the substrate and hydrogen. Highly ordered pyrolytic graphite showed the lowest supercooling among materials that are solid at room temperature, but did not exhibit a templating effect within a fill-tube and capsule assembly.},
doi = {10.13182/FST15-212},
journal = {Fusion Science and Technology},
number = 2,
volume = 70,
place = {United States},
year = 2016,
month = 9
}

Journal Article:
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