Materials & Coatings

Briefs : Motion Control
Transparent Eel-Like Soft Robot Swims Silently Underwater

An eel-like robot was developed that can swim silently in salt water without an electric motor. Instead, the robot uses artificial muscles filled with water to propel itself. The...

Briefs : Materials
Method Converts Cotton Fabric Waste into Aerogel

Aerogels are among the lightest materials in the world, and are highly porous with strong absorption capacity and low thermal conductivity. These unique properties make aerogels highly...

Briefs : Aerospace
Corrosion and Coating Evaluation System

Aircraft coatings are the first line of defense when it comes to mitigating structural corrosion of an air platform. As new coatings are developed — particularly those that contain non-chrome primers...

Briefs : Sensors/Data Acquisition
Radiation Detection with Plastic Scintillators

It has been established opinion since the 1950s that organic crystals and liquid scintillators can work for detecting neutrons, but that plastics are not suitable for neutron detection. For...

Briefs : Photonics/Optics
Composite Film Enables Windows that Switch from Transparent to Color

Commercial buildings in the United States account for nearly 40% of the total energy consumption. Among them, electricity is the largest energy source for buildings....

Briefs : Manufacturing & Prototyping
Transistor Material Provides Additional Computing Degrees of Freedom

For several decades, improvements in conventional transistor materials have been sufficient to sustain Moore’s Law — the historical pattern of microchip manufacturers...

Briefs : Nanotechnology
Removable Implant May Control Type 1 Diabetes

For the more than 1 million Americans who live with Type 1 diabetes, daily insulin injections are literally a matter of life and death. And while there is no cure, a new device may help manage the disease.

Briefs : Manufacturing & Prototyping
Fabrication Process Produces Nanostructures for Electronic Devices

Demands for improved computer processing power have led researchers to explore both new processes and other materials beyond silicon to produce electronic components....

Briefs : Mechanical & Fluid Systems
Compact Termination for Structural Soft Goods

Space environments are particularly harsh for the high-strength fibers NASA relies on for soft structures. Kevlar, Nomex, Nylon, and other synthetic fibers are broken down by exposure to the combination of vacuum, atomic oxygen, and ultraviolet radiation. Glass fiber offers unique advantages for...

Briefs : Materials
Low-Alloy, High-Impact-Toughness Steel

USAF-96 Steel is a low-alloy steel that, when thermally processed with the method described here, has the following typical values: an ultimate tensile strength of 245 ksi, yield strength at 0.2% offset...

Briefs : Mechanical & Fluid Systems
Painted-on Coating Transforms Walls into Sensors and Interactive Surfaces

Walls often make up more than half of indoor surface area, especially in residential and office buildings. In addition to delimiting spaces, both for functional and...

Briefs : Communications
Ultra-Wide-Bandgap Power Electronics

Power electronics used for routing, control, and conversion of electrical power traditionally utilize silicon semiconductors. These systems tend to be bulky, require active cooling, and are inadequate for...

Briefs : Mechanical & Fluid Systems
Polymer-Based 2D-to-3D Transformable Surfaces

Technologies using stretchable materials are increasingly important. Yet, in general, it is not possible to control how they stretch with much more sophistication than inflating balloons. A method was developed that allows the calculated transformation of 2D stretchable surfaces into targeted 3D...

Briefs : Propulsion
Freeform Channel Close-Out for High-Performance Heat Exchangers

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 : Materials
Large-Area Structural Damage Nondestructive Evaluation

When testing composite structures, it is important to understand the response of the structure to the load. Of significance is the formation of damage and growth of that damage leading...

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