Ceramic aerogels are incredibly light and can withstand intense heat. The problem is they can be pretty brittle. Now, a team has developed a new ceramic aerogel that’s far hardier and more flexible, even after repeated exposure to wild temperature swings.
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AA7075 is an aluminum alloy that's almost as strong as steel, yet it weighs just one third as much. Unfortunately its use has been limited, due to the fact that pieces of it couldn't be securely welded together. That's recently changed, however, thanks to the use of titanium carbide nanoparticles.
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Researchers at the University of Maryland (UMD) have developed a new material that senses how warm a person’s body is and automatically adjusts how much heat it traps or releases.
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Scientists have found a way to create materials that actually get stronger the more you use them. By mimicking the mechanism that allows living muscles to grow and strengthen after exercise, the polymer breaks down under mechanical stress, then regrows itself into a stronger configuration.
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There has been a lot said and written about the possibilities of graphene sheets, but material scientists at Northwestern University are casting their minds toward a malleable form of the material that can be kneaded and molded like Play-Doh.
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Researchers at Northwestern University have developed a self-healing coating that can patch up its imperfections in a matter of seconds. It can do so even when underwater or in chemically-harsh environments.
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Ordinarily, if you want to join metal and plastic items together, you have to use either adhesives or rivets. Engineers at Germany's Fraunhofer Institute for Material and Beam Technology, however, have developed a bonding "gun" that they claim makes for a much faster and cheaper joining process.
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A new technique has been used to turn ordinary metals into "metallic wood" with a greatly improved strength-to-weight ratio. By manipulating materials at the atomic scale, scientists claim to have created a sheet of nickel that is as strong as titanium, but up to five times lighter.
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Diamond is a useful material, but its relative rarity on Earth makes it difficult to get. Now, researchers at NCSU have demonstrated a new way to convert carbon nanofibers and nanotubes into diamond fibers that can be performed in a lab more easily than existing techniques.
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Water filters get less effective as bacteria builds up on their surface. Now, researchers at Washington University in St. Louis have developed a new type of membrane that reduces such biofouling by actively killing bacteria with graphene – and in an interesting twist, it’s built by bacteria.
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