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Briefs: Electronics & Computers
Hardface Coating Systems for Wear and Corrosion Resistance
Metal alloys, such as titanium alloys and steels, are known to have a good combination of mechanical properties for many structural applications, but these metal alloys do not meet the wear and corrosion resistance requirements for some structural applications. Titanium alloys, for example,...
Briefs: Materials
A method was developed for printing 3D structures composed entirely of liquids. Using a modified 3D printer, threads of water were injected into silicone oil, sculpting tubes made of one liquid within...
Briefs: Manufacturing & Prototyping
NASA Marshall Space Flight Center has developed a numerically controlled grinding tool that eliminates undesirable periodic variations in surface contours in optical and other surfaces — such as mid-spatial...
Briefs: Energy
Nanofibers are useful for any application that benefits from a high ratio of surface area to volume, such as solar cells that maximize exposure to sunlight, or fuel cell electrodes that catalyze...
Briefs: Test & Measurement
NASA Langley Research Center has developed a wireless, open-circuit SansEC (Sans Electrical Connections) sensor that can detect the presence of chemicals without being in contact...
Briefs: Aerospace
Polymer matrix composites are extremely attractive to researchers working on next-generation applications due to their lightweight properties and ability to withstand extreme conditions in...
Briefs: Materials
The sputtering process has emerged as one of the major deposition techniques for thin film coating practices in research and industrial production. The process is limited by low deposition rates and low...
Briefs: Manufacturing & Prototyping
Stereolithography — a method of 3D printing — uses an ultraviolet laser controlled by a computer-aided design system to trace patterns across the surface of a photoactive polymer solution. The light...
Briefs: Imaging
While additive manufacturing (AM), commonly known as 3D printing, is enabling engineers and scientists to build parts in configurations and designs never before possible, the impact of the technology has been limited by...
Briefs: Materials
Innovators at NASA's Glenn Research Center have adapted a process to apply thermal and environmental barrier coatings using a unique combination of a plasma spray (PS) process and a...
Briefs: Manufacturing & Prototyping
Researchers at the University of Texas at Dallas have solved a longstanding problem that has been plaguing the scanning tunneling microscope for more than 35 years: How to prevent...
Briefs: Materials
Laser-induced graphene (LIG) has been used to write graphene patterns onto food and other materials to quickly embed conductive identification tags and sensors into the products...
Briefs: Mechanical & Fluid Systems
Blocking/Deblocking Resin Systems
Similar to resin systems currently used in composites for aerospace structural applications such as toughened epoxies, this innovation is a modification to traditional resin chemistry to prevent polymerization and crosslinking of the resin when heated and pressed in an autoclave or other common resin curing system....
Briefs: Mechanical & Fluid Systems
NASA Langley Research Center has developed a simple mechanism for the clean cutting of high-strength and high-toughness carbon nanotube/poly-mer fiber composites on demand without high blade wear or replacement...
Briefs: Electronics & Computers
For several decades, improvements in conventional transistor materials have been sufficient to sustain Moore’s Law — the historical pattern of microchip manufacturers...
Briefs: Electronics & Computers
Demands for improved computer processing power have led researchers to explore both new processes and other materials beyond silicon to produce electronic components....
Briefs: Manufacturing & Prototyping
Innovators at NASA’s Glenn Research Center have developed a simple, lightweight, inline, two-speed drive that can be used either as an overall transmission, or as a supplemental add-on input...
Briefs: Electronics & Computers
Magnetic Induction Heating of Space Foods During Dispensing Under Weightless Conditions
Hot foods are psychologically pleasing. Food heating systems are currently part of the astronaut feeding program. An electrical method of heating foods during dispensing in space uses magnetic induction heating. The process is up to 95% efficient in converting...
Briefs: Manufacturing & Prototyping
Auto-Zero Differential Amplifier
Engineers in the NASA Goddard Space Flight Center Instrument Electronics Development Branch have developed a chopper-stabilized auto-zero amplifier capable of amplifying signals with extremely small amplitude originating from a thermopile-based infrared (IR) sensor. The instrument is self-adjusting in that it...
Briefs: Mechanical & Fluid Systems
Large-scale liquid rocket engines with regeneratively cooled nozzles will enable reliable and reduced-cost access to space. The coolant that circulates through the internal...
Briefs: Sensors/Data Acquisition
Freeform Fabrication Using Electrically Conductive Filaments
The use of multifunctional composites such as mechanically reinforced, electrically and thermally conductive parts is of interest in a range of application areas. Especially interesting and important is where tailorability of function is achieved by strategic placement of materials with...
Briefs: Materials
Printing Ink Removes Oxygen in Sealed Packages
Oxygen adversely impacts food flavor and nutrition. NASA’s proposed five-year shelf life for astronaut food requires aggressive measures to minimize oxygen. Previously, NASA packaged foods in containers with a high oxygen and moisture barrier. These materials have limiting properties. They contain a...
Briefs: Mechanical & Fluid Systems
Soft robots inspired by nature can crawl, swim, grasp delicate objects, and even assist a beating heart, but none of them has been able to sense and respond to the...
Briefs: Manufacturing & Prototyping
Surface-Field-Enhanced Detection of Deep UV Photons in Silicon Carbide Avalanche Photodetectors
While silicon carbide (SiC) is an ideal material for building ultraviolet (UV) photodetectors, the absorbed photons get recombined in the first few nanometers at the surface due to a large absorption coefficient in the 200- to 250-nm wavelength band....
Briefs: Medical
This technology uses extracts produced from yeast transformed with a new anti-UV DNA construct to block ultraviolet (UV) radiation.
Briefs: Nanotechnology
Two-photon lithography (TPL), a high-resolution 3D printing technique, is capable of producing nanoscale features smaller than 1/100 the width of a human hair. The technique could enable X-ray...
Briefs: Manufacturing & Prototyping
A “4D printing” method was developed for a smart gel that could lead to the development of living structures in human organs and tissues, soft robots, and targeted drug delivery.
Briefs: Motion Control
Scientists around the world are working on new technologies for the nanofactories of the future, which one day could be used to analyze biochemical samples or produce active medical agents. The required miniature...
Briefs: Mechanical & Fluid Systems
Because of their high precision and speed, Delta robots are deployed in many industrial processes, including pick-and-place assemblies, machining, and welding. Delta...
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