Materials

Materials properties

Stories

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Briefs: Imaging
The wetting behavior of a liquid on a solid surface is a phenomenon of significant practical importance. The angle of liquid-to-solid contact is important in areas such as adhesion,...
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Q&A: Electronics & Computers
Plastics are excellent thermal insulators — a quality that can be an advantage in some applications. But this property is less desirable in products such as plastic...
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Briefs: Medical
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...
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Briefs: Mechanical & Fluid Systems
Constant-Pressure, High-Throughput Membrane Permeation Testing System
Membrane technologies have shown tremendous potential for a variety of separations, and new applications are constantly appearing. These new applications require exploration of materials, operational conditions, and membrane synthesis procedures, and demand accurate and timely...
Briefs: Energy
A method to capture carbon dioxide directly from ambient air offers a new option for carbon capture and storage strategies to combat global warming.
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Articles: Transportation
When engineer Mark Doyle started to put together plans for an exoskeleton to support surgeons in 2012, he wanted to develop a lightweight product that they could wear comfortably for...
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Application Briefs: Medical
Undergoing treatment for a physical injury or condition can be a long and frustrating experience. Broken bones, sprains, torn muscles or ligaments, as well as painful conditions that...
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Articles: Materials
With very little fanfare, a special class of alloys has been finding its way into our daily lives. From indestructible eyewear, to smartphone cameras, to coronary stents, this material is...
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Briefs: Motion Control
Technology was developed that not only allows wheels to “know” when and how to rotate, but also enables them to work together in interactive teams. The new technology can be used wherever there is a need for...
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Briefs: Medical
Sensors that sniff out chemicals in the air to warn us about everything from fires to carbon monoxide to drunk drivers to explosive devices hidden in luggage have improved so...
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Briefs: Materials
Actuators are used in a wide variety of electromechanical systems and in robotics, in applications such as steerable catheters, aircraft wings that adapt to changing conditions, and wind turbines...
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Briefs: Materials
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 of...
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Briefs: Automotive
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...
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Briefs: Mechanical & Fluid Systems
NASA Kennedy Space Center seeks partners interested in the commercial application of the Quick Disconnect for High Pressure Mate/De-Mate. Designed at KSC, this technology is intended for use in...
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Briefs: Electronics & Computers
Vanadium dioxide’s unique properties make it ideally suited for outperforming silicon and giving rise to a new generation of low-power electronic devices. This compound can be...
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Briefs: Nanotechnology
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...
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Briefs: Materials
For several decades, improvements in conventional transistor materials have been sufficient to sustain Moore’s Law — the historical pattern of microchip manufacturers...
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Briefs: Materials
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...
Q&A: Manufacturing & Prototyping
Researchers at Oregon State University’s College of Engineering have taken an important step toward the rapid manufacture of stretchable electronic devices,...
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Briefs: Materials
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
Thinning a material down to a single-atom thickness can dramatically change that material’s physical properties. Graphene, the best known two-dimensional (2D) material, has...
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Briefs: Software
Technique Measures Temperature of 2D Materials at the Atomic Level
Newly developed two-dimensional (2D) materials such as graphene — which consists of a single layer of carbon atoms — have the potential to replace traditional microprocessing chips based on silicon, which have reached the limit of how small they can get. But engineers have been...
Briefs: Semiconductors & ICs
Plastic Material Works as a Heat Conductor
Plastics are excellent insulators, meaning they can efficiently trap heat — a quality that can be an advantage in something like a coffee cup sleeve. But this insulating property is less desirable in products such as plastic casings for laptops and mobile phones that overheat, in part, because the...
Briefs: Mechanical & Fluid Systems
A new way to treat wood makes it 12 times stronger than natural wood and ten times tougher. The wood substance could be comparable to steel or titanium alloys; it is also comparable to...
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Technology Leaders: Energy
Exciting new technological innovations are making the planet cleaner, people healthier, food more plentiful, transportation speedier, communication more accessible, and...
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Briefs: Semiconductors & ICs
New graphene printing technology can produce electronic circuits that are low-cost, flexible, highly conductive, and water-repellent. Low-cost, inkjet-printed graphene can...
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Articles: Mechanical & Fluid Systems
The wide variety of industrial applications each independently calls for a level of robustness from the physical (PHY) layer, all the way up to applications. Time...
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Briefs: Semiconductors & ICs
Ultra-Strong, Lightweight, Elastic, Electrically Conductive Carbon
The configuration of carbon's electrons allows for numerous self-bonding combinations that give rise to a range of materials with varying properties. For example, transparent, super-hard diamonds and opaque graphite, which is used for both pencils and industrial lubricant, are...
Briefs: Nanotechnology
Carbon aerogels (CAs) are nano-porous carbons comprising a particularly significant class of carbon nano-materials for a variety of sustainable energy applications. Carbon aerogels are...
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