Equation of State Properties of Additively Manufactured Metals
Report of FY 2019 activities for SDRD project.
36 MATERIALS SCIENCE↗
Engineering topics
Hawkins, Cameron
Publications and source records attributed to Hawkins, Cameron.
Nevada National Security Site Site-Directed Research and Development Report (FY 2018 Annual Report)
This report compiles multiple articles describing activities developed and performed under the Site-Directed Research and Development Program for the benefit the Nation during Fiscal Year 2018. Sustained investment and ongoing core innovation are the keys to successful research and development programs. These elements drive the Site-Directed Research and Development (SDRD) Program and provide solutions to some of the most challenging problems our nation and our allies face. Our Nevada enterprise, consisting of both our management and operating entity and our NNSA field office, is aggressively investing in SDRD and injecting innovation through strategic partnerships. Our partnerships with universities, industry, and our sister institutions within the National Nuclear Security Administration (NNSA) build upon our core capabilities and allow us to create innovative solutions to support our mission requirements. In 2018, we raised the investment level of SDRD for only the second time in the history of the program. Nearly at our congressionally authorized limit, SDRD has substantial resources to successfully address numerous issues. Investment is only one part of the equation; innovation is generated through collaborations that bring discovery and provide the “technical differentiation” and the return on investment we seek. This report demonstrates an enduring theme of how partnerships help us drive the best outcomes and provide the maximum impact possible, while using our resources efficiently.
36 MATERIALS SCIENCE↗
Correlation between hot spots and 3-D defect structure in single and polycrystalline high-explosive materials
This article presents a novel approach that spatially identifies inhomogeneities from microscale (defects, con-formational disorder) to mesoscale (voids, inclusions) using synchrotron x-ray methods: tomography, Lang topography, and micro-diffraction mapping. These techniques provide a non-destructive method for characterization of mm-sized samples prior to shock experiments. These characterization maps can be used to correlate continuum level measurements in shock compression experiments to the mesoscale and microscale structure.
36 MATERIALS SCIENCE↗
Gas Gun-Configured Magnetic Flux Compression Generator, NLV-013-17, Year 1 of 3
Presentation on project to explore the concept of achieving current amplification by principles of high-explosive magnetic compression generation but without high explosives and demonstrate that a gas gun or launcher could be configured to provide the input energy and action necessary for magnetic compression generation performance in a more controlled, cost-effective manner with improved safety.
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND ↗
Correlation Between Hot Spots and 3-D Defect Structure in Single and Polycrystalline High-Explosive Materials, NLV-035-16, Year 2 of 3
Presentation describes new approach to determine and map defects present in common HE materials to later correlate to hot spots seen during shock using X-ray tomography for meso-scale defects, Lang topography for fully 3-D quantitative assessment, and pre-shock diagnostic tool for pre-shock.
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND ↗
Material Studies using and developing X-ray based diagnostics
Presentation address the question of the role played by defects in hot spot formation during initial stages of detonation.
36 MATERIALS SCIENCE↗