Keyword: Magnesium

Briefs: Materials
Potential applications include lightweight building materials and growing cells for biomedical purposes.
Briefs: Electronics & Computers

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...

Briefs: Materials

Microsensors are used in many different applications such as the detection of poisonous gases. They are also integrated into miniaturized transmitter/receiver systems such as RFID chips. Since...

Briefs: Materials

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...

Articles: Materials
Learn how advanced materials are creating high-efficiency engines, better powertrains, and lighter components.
Briefs: Manufacturing & Prototyping

Magnesium is 75 percent lighter than steel, 33 percent lighter than aluminum, and is the fourth most common element on Earth behind iron, silicon, and oxygen. But despite its light...

Briefs: Materials
Using Sunlight to Activate the Flow of Electrical Current in a New Material

Mined to make the first compass needles, the mineral magnetite is also made by migratory birds and other animals to allow them to sense north and south, and thus navigate in cloudy or dark atmospheric conditions or under water. Researchers have compositionally modified...

Briefs: Manufacturing & Prototyping
Tool Designs for Friction Stir Welding

Friction stir welding (FSW) is a solidstate welding process that shows promise in the aerospace industry. A new system of experimentation has been used to quickly make and screen new tool designs. After conducting a literature review, friction stir tools were designed to optimize material flow around the...

Briefs: Materials
Lightweight, High-Strength Nanocomposite Magnesium for Radiators

The next generation of radiators will be designed using a composite with the combination of the lowest density, highest thermal conductivity, and highest strength. A scalable, low-cost process was developed to advance state-of-the-art metal matrix thermal conductors to reach a...

Briefs: Physical Sciences
Green PCB Removal From Sediment Systems (GPRSS)

John F. Kennedy Space Center, Florida A number of NASA centers have used polychlorinated biphenyl (PCB)-containing materials that have subsequently ended up in surrounding sediment systems. Each center is evaluating remediation technologies that may have application to their environmental problems;...

Briefs: Physical Sciences
Miniaturized, High-Speed, Modulated X-Ray Source

A low-cost, miniature x-ray source has been developed that can be modulated in intensity from completely off to full intensity on nanosecond timescales. This modulated x-ray source (MXS) has no filaments and is extremely rugged. The energy level of the MXS is adjustable from 0 to more than 100...

Briefs: Materials
Preparation of a Bimetal Using Mechanical Alloying for Environmental or Industrial Use

Following the 1976 Toxic Substances Control Act ban on their manufacture, PCBs remain an environmental threat. PCBs are known to bio-accumulate and concentrate in fatty tissues. Further complications arise from the potential for contamination of commercial...

Articles: Manufacturing & Prototyping
LIFE PACK Hypothermia Prevention

Floatation Device Dwight and Jane Cushman, Village Memorial, Portland, OR

Even with floatation gear, when a person who is not prepared...

Briefs: Manufacturing & Prototyping
Mars Aqueous Processing System

The goal of the Mars Aqueous Processing System (MAPS) is to establish a flexible process that generates multiple products that are useful for human habitation. Selectively extracting useful components into an aqueous solution, and then sequentially recovering individual constituents, can obtain a suite of refined...

Briefs: Medical
Wideband Single-Crystal Transducer for Bone Characterization

The microgravity conditions of space travel result in unique physiological demands on the human body. In particular, the absence of the continual mechanical stresses on the skeletal system that are present on Earth cause the bones to decalcify. Trabecular structure decreases in...

Briefs: Physical Sciences
Dual Double-Wedge Pseudo-Depolarizer With Anamorphic PSF

A polarized scene, which may occur at oblique illumination angles, creates a radiometric signal that varies as a function of viewing angle. One common optical component that is used to minimize such an effect is a polarization scrambler or depolarizer. As part of the CLARREO mission, the...

Briefs: Manufacturing & Prototyping
Ridge Waveguide Structures in Magnesium-Doped Lithium Niobate

This work proposes to establish the feasibility of fabricating isolated ridge waveguides in 5% MgO:LN. Ridge waveguides in MgO:LN will significantly improve power handling and conversion efficiency, increase photonic component integration, and be well suited to space-based...

Briefs: Mechanical & Fluid Systems

Some refinements have been conceived for a proposed apparatus that would generate hydrogen (for use in a fuel cell) by means of chemical reactions among magnesium, magnesium...

Briefs: Materials
Magnesium Diboride Current Leads

A recently discovered superconductor, magnesium diboride (MgB2), can be used to fabricate conducting leads used in cryogenic applications. Discovered to be superconducting in 2001, MgB2 has the advantage of remaining superconducting at higher temperatures than the previously used material,...

Briefs: Materials
Catalyst for Carbon Monoxide Oxidation

In many applications, it is highly desirable to operate a CO2 laser in a sealed condition, for in an open system the laser requires a continuous flow of laser gas to remove the dissociation products that occur in the discharge zone of the laser, in order to maintain a stable power output. This...

Briefs: Mechanical & Fluid Systems
Lightweight Heat Pipes Made From Magnesium

Magnesium has shown promise as a lighter-weight alternative to the aluminum alloys now used to make the main structural components of axially grooved heat pipes that contain ammonia as the working fluid. Magnesium heat-pipe structures can be fabricated by conventional processes that include extrusion,...

Briefs: Materials
Formulating Precursors for Coating Metals and Ceramics

A protocol has been devised for formulating low-vapor-pressure precursors for protective and conversion coatings on metallic and ceramic substrates.

Briefs: Electronics & Computers

Color interference filters for individual pixels in solid-state electronic image and display devices would be made of thin metal and dielectric films, according to a proposal. The proposed...

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