Materials

Materials properties

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Briefs: Photonics/Optics
Visualizing Motion of Water Molecules for Liquid-Based Electronics
A high-resolution inelastic x-ray scattering technique was used to measure the strong bond involving a hydrogen atom sandwiched between two oxygen atoms. This hydrogen bond is a quantum-mechanical phenomenon responsible for various properties of water, including viscosity, that...
Briefs: Energy
High-Temperature Dielectric Nanocomposite
A nanocomposite was developed that could be a superior high-temperature dielectric material for flexible electronics, energy storage, and electric devices. The nanocomposite combines one-dimensional polymer nanofibers and two-dimensional boron nitride nano-sheets. The nanofibers reinforce the...
Briefs: Materials
Fire-Retardant Coating Uses Renewable, Nontoxic Materials
Researchers developed a new kind of flame-retardant coating using renewable, nontoxic materials readily found in nature. The coating could provide more effective fire protection for several widely used materials. The coatings offer the opportunity to reduce the flammability of polyurethane...
Briefs: Materials
Researchers have created a fabric that automatically regulates the amount of heat that passes through, depending on conditions; for example, when conditions are warm and moist — such as those of a...
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Briefs: Transportation
Lithium-air batteries are poised to become the next replacement for currently used lithium-ion batteries that power electric vehicles, cell-phones, and computers. Lithium-air...
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Briefs: Photonics/Optics
Polymers are regularly used as thermal insulators and can even be used as thermal conductors to enable efficient heating or cooling. A new type of polymer was created that demonstrates a...
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Briefs: Mechanical & Fluid Systems
Conventional pistons are made of a rigid chamber and a piston inside that can slide along the chamber’s inner wall while at the same time maintaining a tight seal. As a result, the piston...
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Briefs: Energy
The color of a material can often tell how it handles heat. With clothing, for example, the darker the pigment, the warmer you're likely to feel on a hot day. Likewise, the more...
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Briefs: Energy
A system was developed that can remove radioactive cesium contamination from porous structures such as brick and concrete that are hard to clean, as well as contamination from metal...
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5 Ws: Automotive
Who Anyone who uses products made of plastic. The new recyclable plastic could be a good alternative to many nonrecyclable plastics in use today.
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Briefs: Test & Measurement
There is a need for high-volume material testing/qualification but industry and researchers are currently limited by commercially available testing devices. Most wear testers can only handle one sample...
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Briefs: Materials
Multistep Self-Assembly for Reconfigurable Materials
Self-assembling synthetic materials come together when tiny, uniform building blocks interact and form a structure; however, nature lets materials like proteins of varying size and shape assemble, allowing for complex architectures that can handle multiple tasks.
Briefs: Electronics & Computers
Techniques to prevent frost and ice formation on surfaces rely heavily on heating or on liquid chemicals that need to be repeatedly reapplied because they easily wash away. Even advanced...
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Briefs: Photonics/Optics
Accurately measuring semiconductor properties of materials in small volumes helps engineers determine the range of applications for which these materials may be suitable in the...
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Briefs: Energy
Shear Assisted Processing and Extrusion (ShAPE™) allows creation of wire, bar, and tubular extrusions that show significant improvement in material properties; for example, magnesium extrusions have...
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Briefs: Materials
Researchers have developed a new and improved snake-inspired soft robot that is faster and more precise than its predecessor.
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Briefs: Energy
Lithium batteries allow electric vehicles to travel several hundred miles on one charge. Their capacity for energy storage is well known — so is their tendency to occasionally catch...
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Briefs: Mechanical & Fluid Systems
Researchers have developed a fundamentally new type of rotary electrical contact that addresses the two limitations of conventional brush/slip ring technology: 1) short operating lifetime due to sliding-contact wear,...
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Briefs: Imaging
Researchers have created stretchable, rubbery semiconductors including rubbery integrated electronics, logic circuits, and arrayed sensory skins fully based on rubber materials. The semiconductors have...
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Briefs: Motion Control
In discussing fatigue life, it is important to distinguish between disc springs and conical spring washers, as they differ by design and intended usage. Conical spring washers are designed...
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Briefs: Manufacturing & Prototyping
This invention applies to the field of sputtering, depositing SiGe thin films on sapphire substrates. It is a method of modifying the film growth...
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Briefs: Sensors/Data Acquisition
Waterproof Graphene Electronic Circuits
The many applications of graphene, an atomically-thin sheet of carbon atoms with extraordinary conductivity and mechanical properties, include the manufacture of sensors. These transform environmental parameters into electrical signals that can be processed and measured with a computer. Due to their...
Briefs: Semiconductors & ICs
NASA’s Langley Research Center has developed a new way to reduce the high-temperature heating requirement of sapphire substrates in wafer production. The growth of...
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Briefs: Electronics & Computers
Transparent, Self-Healing Electronic Skin
Scientists have taken inspiration from underwater invertebrates like jellyfish to create an electronic skin with similar functionality. Like a jellyfish, the electronic skin is transparent, stretchable, touch-sensitive, and self-healing in aquatic environments.
Briefs: Photonics/Optics
Researchers have constructed a “metamirror” device capable of perfectly reflecting sound waves in any direction. The proof-of-principle demonstration is analogous to looking directly...
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Briefs: Mechanical & Fluid Systems
By mixing carbon fibers into polymer-based brakes, researchers designed brakes that are self-lubricating. These new and improved brakes can prevent wear-and-tear and have better frictional...
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Briefs: Mechanical & Fluid Systems
A metal-organic framework (MOF) material was developed that exhibits a selective, fully reversible, and repeatable capability to remove nitrogen dioxide gas from the atmosphere in ambient...
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Briefs: Energy
Researchers at NASA’s Marshall Space Flight Center have developed a new dielectric material based on barium titanate nanopowder processed via spark plasma sintering (SPS). The rapid and full...
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Briefs: Materials
Plastic-Degrading Enzyme
Eight million metric tons of plastic waste, including polyethylene terephthalate (PET) bottles, enter the oceans each year, creating huge manmade islands of garbage. Experts estimate that by 2050, there will be as much waste plastic in the ocean by mass as there are fish. A bacterium, Ideonella sakaiensis 201-F6, can...

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