Keyword: Gases

Briefs: Nanotechnology
Carbon Nanotube Purification

Development of carbon nanotubes (CNTs), including single-wall and multi-wall nanotubes and nanofibers, into useful devices requires fabrication of CNTs that are relatively free from process residues such as amorphous carbon and metallic particles that are not part of a CNT array grown on a (coated) substrate....

Briefs: Mechanical & Fluid Systems

Asealing device was developed that acts as a high-temperature shutoff valve for pipes and ducts. The device is an annular ring that can be slipped over the outside of the pipe (or built into a flanged...

Briefs: Materials

Solar fuels are created using only sunlight, water, and carbon dioxide (CO2). Researchers are exploring a range of target fuels, from hydrogen gas to liquid hydrocarbons, but...

Briefs: Manufacturing & Prototyping
Method of Manufacturing Convective Accelerometers

Miniaturization and integration of accelerometers in standard integrated circuit (IC) processes has been the topic of extensive research. In most cases, accelerometer structures involve a solid proof mass that is allowed to move under accelerating conditions. This approach has many disadvantages....

Briefs: Mechanical & Fluid Systems

Fluorocarbon-based fire extinguishing agents are environmentally harmful since they cause depletion of the Earth's ozone layer. Fine Water Mist (FWM)-type systems have very favorable characteristics as...

Articles: Materials

This column presents technologies that have applications in commercial areas, possibly creating the products of tomorrow. To learn more about each technology, see the contact information provided for that...

Briefs: Materials

Surfaces such as metal and other corrodible surfaces are often exposed to extreme weathering, temperatures, moisture, impurities, and otherwise damaging external forces that accelerate corrosion....

Briefs: Materials

NASA's Langley Research Center has developed a new class of polyimide composite electrical insulation materials for wires, cable, and bus pipe. These new insulation materials have been shown to withstand a...

Briefs: Materials

To comply with the Restriction of Hazardous Substances (RoHS) directive, pure tin is replacing lead-tin alloys in commercial electronic devices. Unfortunately, tin can grow...

Briefs: Manufacturing & Prototyping
Functionalization of Carbon Nanotubes

Carbon nanotubes (CNTs) have attracted much attention due to their extraordinary mechanical and unique electronic properties. CNTs are being studied for applications in high-strength/low-weight composites and other applications. In order to alter the CNT properties for particular applications, chemical...

Briefs: Materials

An alternate heat shield concept for the Orion space vehicle is to use interlocking blocks of Phenolic Impregnated Carbon Ablator (PICA). The blocks are independent from...

Briefs: Test & Measurement

NASA’s Glenn Research Center has developed and patented the Compact Full-Field Ion Detector System (CFIDS), a radiation particle detection system that provides information on the kinetic...

Briefs: Mechanical & Fluid Systems
Compact, Lightweight Trap Vent

This compact, lightweight trap vent is used to minimize the pressure differential of a high-altitude, balloon-borne detector. The vent allows the pressure to equalize rapidly, yet does not allow any light to enter the detector.

Briefs: Electronics & Computers

Tufts University engineers have invented a chip-sized, high-speed modulator that operates at terahertz (THz) frequencies at room temperature and at low voltages without consuming DC...

Who's Who: Sensors/Data Acquisition

Using data from NASA’s Earth Observing System Aura satellite, launched in 2004, a team led by Michigan Technological University created a global map of...

Briefs: Sensors/Data Acquisition

Part of the TDK group of companies, Headway Technologies (Milpitas, CA) is a semiconductor manufacturer of memory and drive head technologies, and designs and manufactures recording...

Briefs: Sensors/Data Acquisition

NASA's Langley Research Center has developed a photo-acoustic sensing-based laser vibrometer for the measurement of ambient chemical species. The technology allows for detection of sub-part-per-billion (ppb)...

Briefs: Mechanical & Fluid Systems

Oxygen, water, and fuel are of paramount importance to human life. As a leading concept, the solid-oxide electrolysis cell (SOEC) is a very powerful technology, especially...

Briefs: Sensors/Data Acquisition

NASA's Langley Research Center has developed a Floating Ultrasonic System for improved nondestructive testing. Most ultrasonic scanners require an...

Briefs: Manufacturing & Prototyping

Electron Beam Freeform Fabrication, or EBF3, is a process that uses an electron beam gun, a dual wire feed, and computer controls to manufacture metallic structures for building parts or tools in hours,...

Briefs: Materials
Polymer-Reinforced, Non-Brittle, Lightweight Cryogenic Insulation for ReducedLifecycle Costs

The objective of this project was to develop inexpensive structural cryogenic insulation foam that has increased impact resistance for launch and ground-based cryogenic systems. Two parallel approaches were used: a silica-polymer co-foaming...

Briefs: Manufacturing & Prototyping

NASA has investigated and demonstrated the simultaneous production of methane (CH4)...

Briefs: Mechanical & Fluid Systems
Airfoil-Shaped Fluid Flow Tool for Use in Making Differential Measurements

Researchers at NASA’s Marshall Space Flight Center have developed a suite of adaptable flow measurement devices that can be easily installed without compromising the structural integrity of existing conduits. With their simple installation procedures, the devices can be...

Briefs: Materials

NASA’s Glenn Research Center (GRC) has developed a method for fabricating low-density, flexible aerogel composites for use as thermal insulation for myriad...

Briefs: Mechanical & Fluid Systems
A magnetically retained pressure-relief valve enables quick-open on/off operation when overpressure is reached.

Inventors at NASA’s Kennedy Space Center have developed a magnetically retained, fast-response...

Briefs: Robotics, Automation & Control

NASA’s Johnson Space Center innovators have designed a Robotic Inspection System that is capable of surveying deep sea structures such as oil platform storage cells/tanks and pipelines in order to determine...

Briefs: Materials

The Johnson Space Center researched methods to coat aerogel insulation in order to make it better able to withstand vibration, mechanical compression and...

Briefs: Medical

NASA has developed a novel technology strategy called “The NASA Analyzer” that would provide comprehensive in-flight medical diagnostic capability in a compact, handheld device for human deep-space...

Articles: Defense
FLASH® BAINITE — HIGH PERFORMANCE ARMOR

Gary Cola, Flash Bainite, Washington, MI

The Flash® Bainite Process is a rapid heat treating process for creating...