Materials

Whether it's the latest wonder material, such as graphene, or uncovering the secrets to the longevity of ancient Roman concrete, material science is the reason so much of our technology is more than the sum of its parts.

Random related stories from our 25-year archives

Rubber and steel are at different ends of the spectrum of hardness, and wherever an object falls on that scale is typically where it will stay. But now, researchers have developed a metamaterial that can change the stiffness of its surface, from hard to soft and back.
Composite metal foams (CMFs) offer big advantages over traditional solid metal. And while the welding of CMFs usually poses some challenges, it has now been been discovered that the use of an alternative type of welding works like a charm.
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.
Using more sludge and less slag in their recipe, researchers were able to create a material that's stronger than even today's enhanced cements and highly resistant to corrosion by acid. It could solve a serious problem facing sewer pipes worldwide.
Aerogels are among the best thermal insulators, but their cloudy appearance doesn't work for windows, one of the worst offenders for letting heat escape a building. Now, researchers at Colorado University Boulder have found a way to make them transparent, recycling a beer by-product in the process.
​​The ways modern science has harnessed the waste products of the human body for good may surprise. Now a team from the University of Cape Town has developed what it says is the world’s first biological brick made with human urine, with the strength able to be tweaked to serve a range of needs.​
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