Keyword: Powder metallurgy

Briefs: Materials
An alternative, environmentally friendly production method creates permanent magnets.
Briefs: Materials
High-quality coated components can be integrated into complex systems in a sustainable way.
Briefs: Materials
Potential applications include lightweight building materials and growing cells for biomedical purposes.
Briefs: Manufacturing & Prototyping
This method obtains high-color-purity 3D objects using a new class of nanoparticles.
Briefs: Materials

Scientists have reinvented a 26,000-year-old manufacturing process into an innovative approach to fabricating ceramic materials widely used in batteries, electronics, and extreme environments....

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...

Briefs: Mechanical & Fluid Systems

For many highly stressed engineering applications like bearings and gears, contaminated steel parts can lead to devastating outcomes such as an emergency shutdown or the end of a mission. Ensuring that these critical...

Briefs: Aerospace

In 3D printing — also known as additive manufacturing — an object is built layer-by-layer, allowing for the creation of structures that would be impossible to manufacture by...

Q&A: Photonics/Optics
Learn about a new laser-based method for 3D printing of large metal objects called Diode-Based Additive Manufacturing (DiAM).
Briefs: Materials

NASA Langley Research Center has developed a functionally graded metal-metal composite structure. The structure is created using a method that avoids deleterious reactions between the...

Briefs: Photonics/Optics
Additive-Manufactured, Very Lightweight, Diamond Turned Aspheric Mirror

Industrial-grade, lightweight mirrors used in military and aeronautics have tight specifications brought on by demanding performance parameters. For example, a mirror that is used in an orbiting telescope would have to be extremely lightweight, stiff, and be configured to...

Briefs: Photonics/Optics
Additive-Manufactured, Very Lightweight, Diamond Turned Aspheric Mirror

Industrial-grade, lightweight mirrors used in military and aeronautics have tight specifications brought on by demanding performance parameters. For example, a mirror that is used in an orbiting telescope would have to be extremely lightweight, stiff, and be configured to...

Briefs: Materials

NASA's Glenn Research Center has developed high-temperature solid lubricant materials suitable for foil gas bearings that enable the...

Briefs: Materials

NASA’s Glenn Research Center has developed a new method for producing a shock- and corrosion-proof, superelastic, intermetallic material, NiTiNOL 60 (60NiTi),...

Briefs: Manufacturing & Prototyping
Lattice Structures Coating Concept for Efficient Thermal Linking Beds

Conventional air revitalization technology for removal of CO2, moisture, and trace organic contaminants usually involves a packed bed of sorbent pellets that can be regenerated using a concept similar to that of pressure swing adsorption (PSA). Additional heat input...

Briefs: Mechanical & Fluid Systems
Planetary Ice Mining by Down-Hole Energy Injection

Ice has been discovered on Mars and is present in the permanently shadowed craters on the Moon and on many asteroids. The ice is usually buried beneath an overburden of regolith. Evidence indicates this overburden may be a meter deep in some locations for the Moon; for Mars, it varies with...

R&D: Aerospace

A team of Northwestern researchers has created a new way to print three-dimensional metallic objects using rust and metal powders.

Application Briefs: Aerospace
Direct Metal Laser Sintering (DMLS)
Stratasys Direct Manufacturing
Valencia, CA
888-311-1017
www.stratasysdirect.com

NASA’s Marshall Space Flight Center...

Briefs: Photonics/Optics
Fabrication of Ion Optics Using Additive Manufacturing

Ion optics, or grids, for ion thrusters or ion sources are traditionally made by subtractive manufacturing methods such as milling/drilling or chemically etching holes from thin sheets of bulk material. This innovation uses additive manufacturing (AM), or 3D printing, to build the grids from...

Briefs: Materials
NASA PS400 High-Temperature Solid Lubricant Coating

NASA has an ongoing need for high-temperature solid lubricant coatings to reduce friction and wear in turbine engines, rocket engines, and other mechanical systems. Such lubricants must be thermally and chemically stable in air, vacuum, and reducing environments like hydrogen. Traditional...

Briefs: Mechanical & Fluid Systems
Improved Attachment Design for Ceramic Turbine Blades Via Hybrid Concepts

This innovation is a hybrid metal-ceramic matrix composite (CMC) turbine blade in which a SiC/SiC CMC airfoil section is bonded to a single-crystal superalloy root section in order to mitigate risks associated with an all-CMC blade inserted in a superalloy disk. This will...

Briefs: Mechanical & Fluid Systems
Elastic Deployable Composite Tubular Roll-Out Boom

The objective of this work was to develop an innovative deployable boom/structure technology that is ultra-lightweight (<30-grams/meter potential), and has extremely compact stowage volume (>100:1 compaction ratio), broad scalability (no size limits envisioned), high deployed frequency,...

Briefs: Manufacturing & Prototyping
Smart Crucibles and Heat Pipes

Near-net-shape vacuum plasma spray (VPS) forming techniques were developed to produce advanced components with internal features such as smart heat pipes and crucibles. The initial results demonstrated the ability to incorporate features such as channels and a porous layer within the wall of a smart crucible.

Briefs: Materials
High-Efficiency Tantalum-Based Ceramic Composite Structures

High-efficiency tantalum-based ceramic (HETC) composite structures are suitable for use in thermal protection systems. These composite structures have high-efficiency surfaces (low catalytic efficiency and high-emittance), thereby reducing heat flux to a spacecraft during planetary...

Briefs: Physical Sciences
Vibration and Thermal Cycling Apparatus for Cryogenic Tanks

Understanding thermal and mechanical behaviors and their inter-dependencies of complex tank systems is crucial to making proper design decisions. Low-maintenance, high-performance systems are becoming more important as global energy demands and efficiency requirements increase.

Briefs: Electronics & Computers
Scandate Cathode for High-Power, Long-Life Electric Space Propulsion

Scandate cathodes are able to produce about 20 times the emission of conventional all-tungsten cathodes at the same temperature. Conversely, they operate at about 200 °C lower temperature for the same emission. Scandate cathodes have been studied since at least the 1960s....

Application Briefs: Energy

Scientists have long attempted to convert the enormous amounts of waste heat generated by power plants, data centers, and cars into electricity via thermoelectric power generators...

Briefs: Manufacturing & Prototyping

The use of additive manufacturing technologies in aerospace applications has presented both opportunities and challenges. The ability to produce parts and...

Briefs: Physical Sciences
Self-Sealing Wet Chemistry Cell for Field Analysis

In most analytical investigations, there is a need to process complex field samples for the unique detection of analytes, especially when detecting low-concentration organic molecules that may identify extraterrestrial life. Wet chemistry based instruments are the techniques of choice for most...