About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
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Symposium
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Dynamic Behavior of Materials IX
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Presentation Title |
NOW ON-DEMAND ONLY - G-12: Equibiaxial Strength Testing of Lithium Hydride |
Author(s) |
Gabriella King, Christian Bustillos, Wyatt Du Frane, Joshua Kuntz |
On-Site Speaker (Planned) |
Gabriella King |
Abstract Scope |
Lithium Hydride pellets of varying size and density were tested as per ASTM equibiaxial flexural strength testing methods (C1499-15). While bend tests and radial and uniaxial compression tests have been performed on LiH, this work is the first to explore it’s equibiaxial behavior. Hot pressed pellets were sintered at temperatures ranging from 150-550C, to map the effect of consolidation conditions on the equibiaxial strength of the material. To mitigate uneven point loading during trials, a compliant material with a Shore hardness of 60 was placed between fixturing and samples. Density and subsequent equibiaxial strength were found to increase with consolidation temperature. Initial fractographic analysis was performed on post-test fragments to analyze the fracture source for each test case, showing similar fractographic behavior for the range of components.
(This work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344) |
Proceedings Inclusion? |
Planned: |
Keywords |
Characterization, |