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Defense

Thermal Simulation and Testing of Expanded Metal Foils for Lightning Protection

With the implementation of major aircraft structures fabricated from carbon fiber reinforced plastic materials, lightning protection has become a more complicated...

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Articles
Materials

Pumped Two-Phase Cooling for Thermal Management of High Heat Flux Electronics

Pumped two-phase cooling provides a compact, low pumping power option for thermal management in high heat flux applications (300-500W/cm2). Compared to single-phase...

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Articles
Defense

Optically Transparent EMI Shielding for Defense and Aerospace Applications

Modern electronic devices and computing equipment are often integrated with wireless capabilities which utilize multi-bands for high speed communication, as well as high...

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Briefs
Materials

Lipid Layer-Based Corrosion Monitoring on Metal Substrates

Corrosion is a deforming process that costs the United States Department of Defense (DOD) approximately $23 billion annually and accounts for 23% of all DOD maintenance. Exhaustive...

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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...

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Briefs
Materials

Formation and Characterization of Gold Nanoparticles

One-dimensional nanowires are of increasing interest due to their size, physical properties, and other applications in opto-electronics. For example, nanowires have already been used in...

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Briefs
Materials

Electrochemical Energy Storage Materials

One of the most important requirements in next-generation batteries is to concurrently deliver high energy density and high power density (fast charge-discharge rates). The high power density requirement...

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INSIDER
Defense

Microbullets Reveal Material Strengths

In the macro world, it’s easy to see what happens when a bullet hits an object. But what happens at the nanoscale with very tiny bullets? A Rice University lab, in collaboration with researchers at the...

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Briefs
Materials

High Strain Rate Mechanical Properties of Glassy Polymers

Arange of experimental data has been generated describing the response of glassy polymers to high strain rate loading in compression. Recently, research programs that study the combined effects of temperature and strain rate have made significant steps in providing better understanding of...

Briefs
Materials

Characterization of Ceramic Composite Materials Using Terahertz Nondestructive Evaluation Techniques

This work describes the use of nondestructive evaluation (NDE) techniques to characterize defects such as rust, voids, etc. in materials, and...

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Briefs
Materials

Thermo-Elastic Nondestructive Evaluation of Fatigue Damage in PMR-15 Resin

New aircraft are expected to use more composite materials. This drives the need for nondestructive evaluation (NDE) of composite materials. Current aircraft are flown...

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Briefs
Materials

Solar and Thermal Energy Harvesting Textile Composites for Aerospace Applications

The proposed research focuses on developing novel energy harvesting devices that can be integrated with loadbearing structures in an air vehicle (e.g. a UAV)....

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Briefs
RF & Microwave Electronics

Fundamentals of Metamaterials for High-Power RF Applications

Recent years have seen a burgeoning interest in the physics and applications of metamaterials. Briefly, metamaterials consist of a periodic array of subwavelength structures that...

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Products
Materials

Copper Foam

Copper foam from Goodfellow (Oakdale, PA) combines the thermal conductivity of copper with the structural benefits of a metal foam. The matrix of cells and ligaments is repeatable, regular, and uniform throughout the material,...

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Products
Materials

Hydrophobic Coatings

Boyd Coatings Research Co. (Hudson, MA) has developed the CRC 6000-line Hydrophobic Coating, a customized coating used primarily on radomes, satellite dishes and other communication installations to prevent water film from...

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Briefs
Materials

Size Scale and Defect Engineered Nanostructures for Optimal Strength and Toughness

Realistic combinations of ceramics and/or semiconductors have been developed that simultaneously achieve high hardness (>40 GPa) and toughness (>400 MPa*m1/2). To achieve this goal, there were three primary objectives: (1) the development of physically base...

Briefs
Materials

Investigation of Basalt Woven Fabrics for Military Applications

Basalt rock is a black or gray fine-grained rock in the family of igneous rocks, formed by cooling of molten lava. It is commonly found in the Earth’s crust, is abundant...

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INSIDER
Defense

Wool Being Reevaluated for High-Performance Combat Clothing

Natick Soldier Research, Development, and Engineering Center has contracted for several efforts with the American Sheep Industry Association and its subsidiary, Sheep Venture Company,...

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Briefs
Materials

High-Temperature Silicon Carbide Power Module for Military Hybrid Electric Vehicles

The ever-increasing electrical power, power density, and cooling requirements of present and future military platforms are pushing silicon-based power...

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Briefs
Materials

Transparent Ceramics for High-Energy Laser Systems

When a high-energy laser (HEL) beam transmits through a window material, a part of the laser energy is absorbed by the material and causes optical aberrations. This absorbed energy results in...

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Briefs
Physical Sciences

Nonlinear Acoustic Metamaterials for Sound Attenuation Applications

An acoustic crystal composed of tightly packed spherical particles can exhibit a wide spectrum of acoustic properties with responses varying from linear to highly nonlinear...

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Briefs
Materials

Tunable Infrared Material System

The objective of this work was to lay the groundwork for the development of a new tunable II-VI infrared (IR) material system using mature III-V semiconductors as lattice-matched substrates. Mercury cadmium selenide (HgCdSe) was studied as an alternative to mercury cadmium telluride (HgCdTe) as an IRdetecting...

Briefs
Photonics/Optics

Rare-Earth-Doped Soft Glass Optical Fibers for Coherent Wavelength Sources Above 2 Microns

Rare-earth-doped soft glass optical fibers were developed and characterized for fiber lasers emitting at wavelengths longer than 2 microns to allow...

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Briefs
Photonics/Optics

Room-Temperature Sub-Diffraction-Limited Plasmon Laser

Lasers present the means to deliver powerful, coherent, and directional high-frequency electromagnetic energy. However, the diffraction limit of light imposes fundamental constraints on how...

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Briefs
Electronics & Computers

Gallium Nitride High-Power Electronics

Gallium nitride (GaN) high-power electronic (HPE) devices have the potential to outperform those made from 4H-silicon carbide (SiC), the polytype used for HPE devices, because it has a larger critical...

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Briefs
Materials

Ultraviolet Polymerization of Hydrodynamically Shaped Fibers

Materials composed of stacked plates are stronger than the same materials in bulk. However, such stacked plate materials are generally composed of hard, inorganic materials cemented together by a more flexible substance, and do not occur in long fiber shapes. Very few natural or manmade...

Briefs
Materials

Optical Properties of Aligned Carbon Nanotube Mats for Photonic Applications

Carbon nanotubes possess unique electronic properties that are very useful for building electro-optical devices at nanometer scales. In optoelectronic applications, a large number of carbon nanotubes will be assembled in a desired form.

Products
Photonics/Optics

AR Coatings for Optical Fibers

Laser Components (Hudson, NH) offers both assembled cables, including coated fibers, and job coatings on fibers supplied by the customer. They also offer anti-reflection coatings, which significantly reduce...

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Products
Materials

Borosilicate Glass

SCHOTT North America, Inc. (Louisville, KY) presents SUPREMAX® 33 rolled borosilicate glass for telescope applications. SUPREMAX 33, which has the properties of SCHOTT’s BOROFLOAT® 33, provides low thermal expansion, high...

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