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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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DARHT VESSEL REPAIR FACILITY
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Risk Analysis and Modeling to Improve Hydrogen Fuel Cell Vehicle Repair Garages.
Abstract not provided.
Quantitative Risk Assessment Updates: Repair Garage Ventilation and Liquid Hydrogen Leak Frequencies.
Abstract not provided.
Engineered nano-modified methyl methacrylate polymer for repair of 30 microM microcracks
A method and sealant to seal microcracks as small as 30 μm by causing methyl methacrylate combined with one or more nanoparticles to flow into the microcrack to be sealed.
Materials exhibiting biomimetic carbon fixation and self-repair
A composition can photocatalytically reduce carbon dioxide.
An in vitro bone model capable of continuous sensing and damage repair.
Abstract not provided.
Friction Stir Welding – an Advanced Approach to Repair Nuclear Power Plant Components
Solid phase joining technique friction stir welding (FSW) has been shown to mitigate helium-related issues in fusion welding of irradiated steels. Here, we present detailed characterization results of the first friction stir weld of an irradiated 304L stainless steel (SS) coupon contained 5.2 atomic parts per million (appm) helium. Scanning electron microscopy (SEM) was used to characterize a cross section specimen removed from the friction stir weld. No macro helium induced crack was observed at the analyzed cross-section, and only 1 – 1.5 µm size pores were found in the stir zone (SZ) and the thermal-mechanical affected zone (TMAZ). Moreover, some minor helium aggregations (Maximum ~20 µm in length) appeared along grain boundaries inside the TMAZ. Thereafter, miniature tensile specimens were extracted from the SZ, TMAZ and heat affected zone (HAZ), and base metal (BM) and tested. All welded specimens showed high total elongations (> 60%) and strengths (> 75% BM strengths). Overall, the weld made by FSW showed much better results comparing with traditional fusion welding on irradiated SS.
Efficacy of MIL-DTL-5541 Compliant Non-Chromate Conversion Coating Repair Materials.
Abstract not provided.
Hybrid Manufacturing Approaches for the Production and Repair of Industrial Tooling
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Systems and methods for robotic sensing, repair and inspection
Various embodiments of a bio-inspired robot operable for detecting crack and corrosion defects in tubular structures are disclosed herein.
Applications of Coatings for the Mitigation and Repair of Stress Corrosion Cracking on Spent Nuclear Fuel Canisters.
Abstract not provided.
Examining Failures and Repairs on Supercomputerswith Multi-GPU Compute Nodes
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A Brief Review of Fusion Enabling Laser-Induced Damage Reduction, Management, and Repair strategies on at the National Ignition Facility
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Materials exhibiting biomimetic carbon fixation and self-repair
A composition can photocatalytically reduce carbon dioxide.
In Situ Structural Repair and Protection of LWR Components Using Cold Spray - Phase IIA
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C56-14B-Photocured Hydropower Repair Coatings- Phase I-Final Report
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