Keyword: Conductivity

Briefs: Physical Sciences

A new method has been developed for monitoring and control of automated sample processing and preparation especially focusing on desalting of samples before...

Briefs: Materials
Nanoengineered Thermal Materials Based on Carbon Nanotube Array Composites

State-of-the-art integrated circuits (ICs) for microprocessors routinely dissipate power densities on the order of 50 W/cm2. This large power is due to the localized heating of ICs operating at high frequencies and must be managed for future highfrequency...

Techs for License: Lighting

Code 3’s TriCore is an LED-based optical lighting technology that is 2X brighter than other technology currently on the market using only 1/3 the power of conventional lighting systems, yielding...

Briefs: Materials
Ultra-Lightweight Nanocomposite Foams and Sandwich Structures for Space Structure Applications

Microcellular nanocomposite foams and sandwich structures have been created to have excellent electrical conductivity and radiation-resistant properties using a new method that does not involve or release any toxicity. The nanocomposite structures have...

Application Briefs: Materials

A high-performance thin-film product created specifically for NASA’s Jet Propulsion Laboratory in Pasadena, CA, is being used to ensure the electrical currents from the Mars Rover Curiosity’s...

Research News: Lighting

A multinational team of scientists has developed a process for creating glass-based, inorganic LEDs that produce light in the ultraviolet range. The work is a step toward biomedical...

Briefs: Physical Sciences

A gas containment vessel that is not in thermal equilibrium with the bulk gas can affect its temperature measurement. The physical nature of many gas...

Briefs: Materials
Electrochemical Ultracapacitors Using Graphitic Nanostacks

Electrochemical ultracapacitors (ECs) have been developed using graphitic nanostacks as the electrode material. The advantages of this technology will be the reduction of device size due to superior power densities and relative powers compared to traditional activated carbon electrodes....

Briefs: Materials
Radiation Shielding System Using a Composite of Carbon Nanotubes Loaded With Electropolymers

Single-wall carbon nanotubes (SWCNTs) coated with a hydrogen-rich, electrically conducting polymer such as polyethylene, receive and dissipate a portion of incoming radiation pulse energy to electrical signals that are transmitted along the CNT axes, and...

Research News: Lighting
Oak Ridge National Laboratory, Oak Ridge, TN

Solar cells, light emitting diodes, displays and other electronic devices could get a bump in performance because of a discovery at the...

Briefs: Mechanical & Fluid Systems

The addition of the Multi-Mission Radioisotope Thermoelectric Generator (MMRTG) to the Mars Science Laboratory (MSL) Rover requires an...

Research News: Lighting

Researchers in the University of Toronto's Department of Materials Science & Engineering have developed what they say are the world’s most efficient organic light-emitting diodes (OLEDs) on plastic....

Articles: Lighting

As global energy demand rises, the significant energy-saving potential of light-emitting diode (LED) lighting remains a top consideration for...

Briefs: Manufacturing & Prototyping
Improved Design and Fabrication of Hydrated-Salt Pills

A high-performance design, and fabrication and growth processes to implement the design, have been devised for encapsulating a hydrated salt in a container that both protects the salt and provides thermal conductance between the salt and the environment surrounding the container. The unitary...

Articles: Photonics/Optics

Unmanned aircraft systems (UAS) and their applications are experiencing rapid growth, especially in the area of remote sensing. Advances in propulsion; airframe materials;...

Application Briefs: Photonics/Optics

Fine laser cutting is an ideal technology for specialized cutting requirements found in the manufacturing of medical tube tools and components. From surgical instruments used in cutting and biopsy, to needles...

Briefs: Manufacturing & Prototyping
Technique for Configuring an Actively Cooled Thermal Shield in a Flight System

Broad area cooling shields are a massefficient alternative to conductively cooled thermal radiation shielding. The shield would actively intercept a large portion of incident thermal radiation and transport the heat away using cryogenic helium gas. The design concept...

Briefs: Materials
Fiber-Reinforced Reactive Nano-Epoxy Composites

A family of metal/ceramic composite materials has been developed that are relatively inexpensive, lightweight alternatives to structural materials that are typified by beryllium, aluminum, and graphite/epoxy composites. These metal/ceramic composites were originally intended to replace beryllium...

Briefs: Materials
Metal-Matrix/Hollow-Ceramic-Sphere Composites

A family of metal/ceramic composite materials has been developed that are relatively inexpensive, lightweight alternatives to structural materials that are typified by beryllium, aluminum, and graphite/epoxy composites. These metal/ceramic composites were originally intended to replace beryllium...

Briefs: Energy

Phosphors are useful in numerous applications including lighting. Tantalates are very promising materials because they are especially robust and resistant to chemical degradation. Studies have...

Articles: Test & Measurement

The Hall effect can be observed when the combination of a magnetic field through a sample and a current along the length of the sample create an...

Briefs: Physical Sciences

Acquiring cheap, moving video was impossible in a vacuum environment, due to camera overheating. This overheating is brought on by the lack of cooling media in vacuum. A water-jacketed camera cooler enclosure machined...

Techs for License: Lighting

Flexible, transparent, conducting coatings are of high commercial value in low-cost, flexible photovoltaic cells and large electronic LED displays. Currently, the carbon nanotubes...

Briefs: Manufacturing & Prototyping

Thermoelectric materials provide a means for converting heat into electrical power using a fully solid-state device. Power-generating devices (which include individual...

Articles: Aerospace

In direct response to the National Research Council’s report “Capabilities for the Future: An Assessment of NASA Laboratories for Basic Research, 2010,” the Space Technology program was born and formally approved...

Briefs: Lighting

Phosphors are useful in numerous applications including imaging, detection, and lighting. They come in forms of thin films, monoliths, or powders for miscellaneous devices, or dispersible nano...

Briefs: Mechanical & Fluid Systems

Airborne and space infrared cameras require highly flexible direct cooling of mechanically-sensitive focal planes. A thermal electric cooler is often used together with a thermal strap as a means to transport...

Briefs: Physical Sciences
Image Quality Indicator for Infrared Inspections

The quality of images generated during an infrared thermal inspection depends on many system variables, settings, and parameters to include the focal length setting of the IR camera lens. If any relevant parameter is incorrect or sub-optimal, the resulting IR images will usually exhibit inherent...

Briefs: Manufacturing & Prototyping
Development of Position-Sensitive Magnetic Calorimeters for X-Ray Astronomy

Metallic magnetic calorimeters (MMC) are one of the most promising devices to provide very high energy resolution needed for future astronomical x-ray spectroscopy. MMC detectors can be built to large detector arrays having thousands of pixels. Position-sensitive...

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Briefs: Aerospace

3D-Printed Catalysts Propel Hypersonic Flight

Articles: Motion Control

The Basics of Encoder Selection

Briefs: Electronics & Computers

Reliability Testing of High-Power Devices