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Briefs: Physical Sciences
Autonomous Cryogenic Leak Detector for Improving Launch Site Operations
NASA, military, and commercial satellite users need launch services that are highly reliable, less complex, easier to test, and cost effective. This project has developed a tapered optical fiber sensor for detecting hydrogen. The invention involves incorporating chemical...
Techs for License: Lighting
Heterocycles for Use in Electronic Devices
Synthesis of heterocyclic aromatic compounds has been pursued for a long time by chemists in order to analyze their properties and potential applications in biomedical and materials sciences including electronic devices such as organic light emitting devices (OLEDs) and in hydrogen storage.
Briefs: Physical Sciences
Thermography to Inspect Insulation of Large Cryogenic Tanks
Thermography has been used in the past to monitor active, large, cryogenic storage tanks. This approach proposes to use thermography to monitor new or refurbished tanks, prior to filling with cryogenic liquid, to look for insulation voids. Thermography may provide significant cost and...
Briefs: Physical Sciences
Chemochromic Hydrogen Leak Detectors
At NASA, hydrogen safety is a key concern for space shuttle processing. Leaks of any level must be quickly recognized and addressed due to hydrogen’s lower explosion limit. Chemochromic devices have been developed to detect hydrogen gas in several embodiments. Because hydrogen is odorless and colorless and...
Articles: Nanotechnology
The 2008 NASA Tech Briefs National Nano Engineering Conference (NNEC), be held November 12-13 at the Boston Colonnade Hotel, is for design engineers who want to know what’s real, what’s close to...
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Briefs: Materials
A nickel-based superalloy that resists embrittlement by hydrogen more strongly than does nickel alloy 718 has been developed. Nickel alloy 718 is the most widely used superalloy. It has...
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Briefs: Materials
Composite-Material Tanks With Chemically Resistant Liners
Lightweight composite-material tanks with chemically resistant liners have been developed for storage of chemically reactive and/or unstable fluids — especially hydrogen peroxide. These tanks are similar, in some respects, to the ones described in — Lightweight Composite-Material...

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