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[Image above] Credit: NIST

Coating of hollow alumina spheres protects against heat and oxidation

Researchers at Fraunhofer have developed an economical coating technique that they plan to use to protect turbine engine and waste incinerator components against heat and oxidation. A topcoat from micro-scaled hollow aluminum oxide spheres provides heat insulation.

Washington Mills explains the benefits of electric arc furnace technology

An electric arc furnace is a vessel that uses electricity to melt minerals or other materials. Virtually any oxide material can be processed in an electric arc furnace. Because the materials are melted and actually reach the liquid state, the end result is a near-perfect fusion of minerals that has benefits compared to those produced through other processes, such as sintering.

NRL scientists convert agricultural waste to high-value silicon carbide

Around the globe, billions of pounds of agricultural waste are generated every year. Scientists at the U.S. Naval Research Laboratory are exploring ways to convert this waste into high-value silicon carbide that can be used for a variety of electronic and structural applications.

Scientists do glass a solid—with new theory on how it transitions from a liquid

A team of researchers at New York University offers a theoretical explanation for how glass transitions from a liquid to a solid. In their theoretical work, the researchers propose to use 19th-century concepts developed by Maxwell, the founder of electromagnetism, to study the stability of mechanical structures.