Materials
Gases

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Editorial
Green Design & Manufacturing

Engineering ‘Electron Guzzlers’

Apparently, ‘gas guzzler’ now encompasses any vehicle that burns hydrocarbon fuels, no matter how efficient. Anything with an exhaust pipe.

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Articles
Materials

The Olfactory Factor in AV Interiors

Whether they’re riding in an autonomous shuttle, a transit bus, a train or a rental car, passengers often face cabin air full of “mal odors” — bad smells — including cigarette and vape...

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Editorial
Materials

Waging a War for EV Materials Security

Conflict over natural resources and human history are inseparable. Wars waged directly or indirectly over control of commodities, trade routes, water, food sources and arable soil have been the...

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News
Power

When a Van Beats a Pickup

As a utilitarian tool, the 2021 Great American Pickup truck has some fundamental flaws. Its open bed jeopardizes any cargo that’s valuable (exposing your payload to the world) or not waterproof. Worse,...

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News
Test & Measurement

A Cool New Dimension to Automotive Plastics’ Testing

R&D testing in extreme temperatures has long been part of ensuring required longevity and performance of automotive materials. That is particularly so regarding plastics, the...

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What We’re Driving
Propulsion

What We’re Driving: Mercedes-AMG E 53 4Matic+

Select “Sport+”, floor the gas pedal, listen to the engine and exhaust notes, and the essence of Mercedes-AMG’s latest E 53 sedan is sensationally clear. But shouldn’t this combo...

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Briefs
Photonics/Optics

New Class of Excimer-Pumped Atomic Lasers (XPALS)

The focus of this research program was the investigation of XPAL properties, and new pumping schemes, as well as modeling, and measuring critical photoionization and excited state-excited...

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Product Briefs
Materials

Accumulator Design and Assembly Process

To address the disadvantages mainly in the traditional manufacture of diaphragm accumulators, Freudenberg Sealing Technologies (Weinheim, Baden-Württemberg, Germany) developed a new approach—one...

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Briefs
Aerospace

Imaging Detonations of Explosives

An effort has been made within the US Army Research Laboratory (ARL) to extract quantitative information on explosive performance from high-speed imaging of explosions. Explosive fireball surface...

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Briefs
Photonics/Optics

Development of Photoacoustic Sensing Platforms

In recent years, photoacoustic spectroscopy (PAS) has emerged as an attractive and powerful technique well suited for sensing applications. The development of high-power radiation sources and...

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Product Briefs
Mechanical & Fluid Systems

Mass Flow Meter

The MicroTRICOR TCM-100 Coriolis mass flow meter from AW-Lake Company (Oak Creek, WI) is the smallest TRICOR Coriolis meter designed for the accurate measurement of very low flow rates. It is suitable for dosing, blending...

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Briefs
Aerospace

Development of High Quality 4H-SiC Thick Epitaxy for Reliable High Power Electronics Using Halogenated Precursors

Development of robust semiconductor devices with high energy efficiency and reliability is a key objective towards 'Energy...

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Articles
Defense

Advances in Lightweight Electronics Protection

Lightweighting continues to be a key topic for the aerospace, avionics and defense industries as new metals and composites are being integrated into end products and assemblies with the goal of...

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Briefs
Mechanical & Fluid Systems

Molecularly Imprinted Polymer (MIP)-Coated Microbeam MEMS Sensor for Chemical Detection

Monitoring trace gases is of great importance in a wide range of applications. Detecting a diverse range of chemical agents requires an adaptable sensor...

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Briefs
Manufacturing & Prototyping

Silicon Microsphere Fabrication

The efficiency and methodology of coupling light into microcavities has improved exponentially in the last decade. One such advancement is coupling light onto silicon microspheres. The material, size, and...

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Briefs
Physical Sciences

Detecting Trace Levels of Explosives Using Vibrational Sum Frequency Spectroscopy

The threat of improvised explosive devices (IEDs) to human life is grave, and countering this threat is a high priority for force protection during military...

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Technology Update
Defense

Production of Satellite with First All-Electric Propulsion System Advances

Boeing is “running on schedule” as it continues to achieve production milestones for the first of its all-electric-propulsion 702SP (small platform)...

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News
Electronics & Computers

Magnetic Filtration Solutions

FilterMag International offers the FilterMag product family to prevent erosive contaminants in critical assets for mining, oil and gas, construction, and manufacturing. To remove the small particles that cause...

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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...

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Briefs
Physical Sciences

Thermal Mechanical Fatigue Crack Growth Testing

Turbines in aircraft turbojet engines are being subject to increasingly higher temperatures to improve fuel efficiency. High turbine efficiency requires the ability of turbine blades to...

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Briefs
Manufacturing & Prototyping

Operation and On-Chip Integration of Cavity-QED-Based Detectors for Single Atoms and Molecules

A new experimental platform for studies of transport and quantumlimited measurements of cold, trapped atomic gases was constructed. Using microfabrication processes, a silicon wafer was micromachined to allow for deposition of micrometer-scale...

Articles
Electronics & Computers

Thin Cavity Cooling of Electronic Circuitry

Anovel tested technology for cooling electronic circuitry is also useful in many other industries. The method is called “Thin Cavity Fluidic Heat Exchanger”(TCFHE). Technology details can be...

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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...

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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...

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Application Briefs
Defense

New Energy Source Powers Single-Use Mil/Aero Equipment

Until recently, single-use high energy devices were typically powered by reserve/thermal batteries using decades-old technology. Recognizing that battery performance limitations could...

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Articles
Aerospace

Using Fiber Metal Abradable Seals in Aerospace Turbine Applications

Limiting leakage in aerospace turbo-machinery has been a focus of engineers ever since the advent of the turbine. An increasing number of companies are finding that fiber...

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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
Photonics/Optics

Surface Plasmon-Enhanced Si:Er Infrared Light-Emitting Diodes

Plasmons are collective oscillations of the free electrons in a metal or an ionized gas. Plasmons dominate the optical properties of noble-metal nanoparticles, which enables a variety of applications including electromagnetic energy transport at nanoscale dimensions, single-molecule...

Briefs
Materials

Dynamic Response and Failure Mechanisms of Layered Ceramic-Elastomer-Polymer/Metal Composites

A thorough study through a combination of ballistic and impact experiments, microscopic failure characterization, and numerical simulations has been carried out in order to decipher the underlying mechanisms involved in the interaction between a blast...