New Heat Treatment Allows 3D-Printed Metals to Withstand Extreme Heat

An MIT-developed heat treatment aims to transform the microscopic structure of 3D-printed metals, making the materials stronger and more resilient in extreme thermal environments.

Integral Tuned Mass Absorber for Turbine Blades

A novel turbine blade design and manufacturing approach developed by NASA provides a significant reduction in turbine blade resonant vibration.

Vote for Tech Briefs Product of the Year 2021

These 12 products are the nominees for the 2021 Tech Briefs Readers’ Choice Product of the Year.

Method Detects Onset of Destructive Oscillations in Aircraft Turbines

Early flutter detection will help in the development of safer and more eco-friendly aircraft turbines.

Oxide Dispersion Strengthened Medium Entropy Alloy

This additively manufactured alloy is tailored for high-temperature applications.

Environmental Barrier Coatings for Ceramic Matrix Composites

These barrier coatings protect high-performance components in extreme environments.

Variable-Pitch Turbine Blades

Gas turbine blades of conventional rotorcraft turboshaft engines are optimized to operate at nearly a fixed speed and a fixed incidence angle. If the operating condition of the engine changes, then the flow...

Nano Layer Helps Measuring Devices Withstand Extreme Environments

Measurement devices that can withstand the acid rains on Venus, radiation in space, and the heat of car engines are being developed to improve research in these extreme...

Data Optimization Technology Helps Wind Farm Operator Examine Costs

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Avangrid Renewables is a subsidiary of Avangrid, Inc., and part of the Spain-based Iberdola Group, the largest wind...

Compositions Comprising Nickel-Titanium, Methods of Manufacture Thereof, and Articles Comprising the Same

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

Film Cooled Surface

Turbine film cooling flows typically are subject to jet detachment and reduced cooling effectiveness for high blowing rates. Current concepts to improve jet attachment involve impractical or overly complex hole designs...

Fully Premixed, Low-Emission, High-Pressure, Multi-Fuel Burner

NASA’s Glenn Research Center has developed a novel design for a fully premixed, high-pressure burner capable of operating on a variety of gaseous fuels and oxidizers, including...

Fluidic Oscillator Array for Synchronized Oscillating Jet Generation

NASA’s Langley Research Center develops innovative technologies to control fluid flow in ways that will ultimately result in improved performance and fuel efficiency....

Reducing Torque Measurement Uncertainty in Turbine Engine Testing

Torque is among the most important of all the measured quantities in applications ranging from characterizing high-power gas turbines, to determining the level of force...

Mechanical Carbon Materials for Aircraft Seal Applications

Modern mechanical carbon materials are being used in a wide variety of applications, including aircraft gear boxes, air turbine motor starters, and main shaft seals for both aircraft...

Pumped Subsea Energy Storage

A local energy source is desired for near-shore and offshore applications. Gas generators, diesel generators, and long-length submerged power cables tend to be expensive. A proposed solution is to use offshore...

Blade Tip Clearance Sensors for Engine Health Monitoring

Blade health monitoring continues to gain interest as a means of assessing the health of turbine airfoils in aerospace and ground-based gas turbine engines in fleet operation. Many...

Turbomachinery Solutions for Green and Renewable Energy

For more than two decades, nearly all renewable energy endeavors have incorporated the latest advances in turbomachinery design and turbomachinery manufacturing technology in an...

Hybrid Power Management-Based Vehicle Architecture

This ultracapacitor design is energy- and cost-efficient with measurably less environmental impact.

Hybrid Power Management (HPM) is the integration of diverse, state-of-the-art power...

Very High Output Thermoelectric Devices Based on ITO Nanocomposites

A material having useful thermoelectric properties was synthesized by combining indium-tin-oxide (ITO) with a NiCoCrAlY alloy/alumina cermet. This material had a very large...

Protecting AC Motors From Destructive Shaft Currents

The use of variable-frequency drives (VFDs) to control AC motors has increased dramatically in recent years. In addition to low operating cost and high performance, they save energy....

Criterion for Identifying Vortices in High-Pressure Flows

A study of four previously published computational criteria for identifying vortices in high-pressure flows has led to the selection of one of them as the best. This development can...