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Articles Manufacturing & Prototyping
Curing the Porosity Problem in Additive Manufacturing
During the additive manufacturing process, microscopic holes that are invisible to the naked eye are formed within the body of the part.
Articles Manufacturing & Prototyping
Using Thermoplastic Composites for Aerospace Applications
Recent advancements in composite production and processing are making thermoplastics a viable option in a wider array of aerospace applications.
Briefs Defense
Designing and Fabricating a Multiple-Decade Battery
There is a great need for energy sources that can power unattended sensors for more than a decade. Unattended sensors can be located in harsh and remote locations that are often dangerous...
Technology Update Materials
Toho Tenax Develops 'Super-Heat-Resistant' Prepreg for Engine Apps
Toho Tenax Co., Ltd. announced Nov. 6 that it has developed a new prepreg — a carbon-fiber sheet pre-impregnated with matrix resin — that offers super-high-heat and...
Briefs Materials
Carbon Nanotube Thermal Interfaces Enhanced with Sprayed-On Nanoscale Polymer Coatings
As the semiconductor industry continually strives to increase the power density of single-chip packages, thermal management remains a critical challenge...
Articles Aerospace
Using Polyimide In 3D Thin Film Multilayer Circuitry
Today, the cost and complexity of all platforms and systems in military and defense technologies are being challenged by the need for high functionality in smaller but less expensive...
Briefs Manufacturing & Prototyping
Micro-Composite Fabrication via Field-Aided Laminar Composite Processing
Much work has been accomplished since the discovery that particles in a dielectric fluid experience forces when placed in an electric field, including mathematical...
Briefs Manufacturing & Prototyping
Fabrication of Carbon Nanotube Channels on Three- Dimensional Building Blocks
Single-wall carbon nanotubes (SWNTs) are the most attractive material in the fields of nanoscience and nanotechnology due to their chemical, physical, and...
Briefs Manufacturing & Prototyping
Fabrication of Novel Transparent PMMA Composites for Optical Tagging
The emerging threats caused by improvised explosive devices (IEDs) have drastically increased concerns about soldier survivability. The ability to identify “friend vs....
Briefs Materials
Temperature Effect on Drop-Weight Impact of Hybrid Woven Composites
The main idea of composite material is to combine different materials to produce a new material with performance unattainable by the individual constituents. It gives...
Briefs Sensors/Data Acquisition
Biodegradable MEMS Based on Cellulose Paper
Electro-Active Paper(EAPap) has been recognized as a new smart material that can be used for sensors, actuators, biomimetic robots, and smart wallpapers. EAPap is made with cellulose paper by...
Briefs Materials
Fire Resistance of Geopolymer Concretes
Geopolymer concrete has been proposed as an alternative to Portland cement concrete in applications requiring high degrees of fire resistance, because the intrinsic chemistry of the geopolymer binder...
Briefs Manufacturing & Prototyping
Solution Deposition Methods for Carbon Nanotube Field-Effect Transistors
Extensive research has been done on carbon nanotube field-effect transistors (CNTFETs), which may revolutionize electronics. Single-walled carbon nano-tubes (SWNTs) act...
Briefs Materials
Barium Ferrite Materials for Microwave Circulators
Barium ferrite thick disks have been fabricated for incorporation in self-biased microwave devices. The process uses barium ferrite nanopowder mixed with epoxy. The mix is placed on alumina substrates to fabricate 500 μm thick disks of BaM to achieve good magnetic properties such as magnetic...
Briefs Materials
Silicon Nanowires for Anodes of Rechargeable Li Power Cells
Silicon nanowires have been investigated as alternatives to the graphite heretofore widely used as an anode material in rechargeable lithium-ion power cells. The theoretical...
Briefs Materials
Improved Dielectric-Breakdown Property of POSS-Filled Epoxy
A n experimental study has shown that the AC short-term dielectric breakdown potential of material specimens consisting of polyhedral oligomeric silsesquioxane (POSS) nanoparticles...
Briefs Manufacturing & Prototyping
Fabrication of Lightweight Armored Doors for HMMWVs
A document describes a concept for fabricating lightweight armored doors for the Army’s high-mobility multipurpose wheeled vehicles (HMMWVs). Essentially, the concept is to reinforce high-hard (HH) steel armored doors used on some HMMWVs with a laminated, woven, high-tensile-strength...
Briefs Materials
Innovative Processes Strengthen F-15E Vertical Stabilizers
AFRL materials engineers resolved a potentially serious problem that affects the operational life of F-15E vertical stabilizers. Working with engineers from Warner Robins Air...
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Accelerating Product Development With the Digital Twin
Energy
High-Resolution In-line X-ray Imaging for Lithium-Ion Battery...
Energy
Software Solutions for Battery Management System Applications...
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Defense
Choosing a Silicone for Operation in Harsh Thermal Environments
