December 4, 2022 11:42 PM Subscribe
What is Structural Engineered Bamboo (SEB)? - "[Radial laminated bamboo] is more than twice the strength of any engineered or glulam timber product. In tension, it is more than 10 times stronger due to the continuous silica fiber content throughout bamboo. The higher density of SEB is ideal for connection design as timber fiber will crush within bolted connections, whereas this maintains its form under higher compression."
- Engineered bamboo
- Engineered bamboo for structural applications 
- How Effective is Laminated Bamboo for Structural Applications?
- Laminated Bamboo Structures for a Changing World
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- Transforming Trees Into Skyscrapers
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- A ceramic that bends instead of shattering - "Ceramic materials are, at least in principle, capable of plastic deformation at room temperature. If ceramics can be shaped by hammering, bending, or pulling without fracturing, this will vastly expand the range of applications for these materials. For example, the strong ionic and covalent bonding in ceramics, combined with this hypothetical plasticity, could lead to materials that are lighter and stronger than even the best metal alloys of today. On page 371 of this issue, Zhang et al. present how silicon nitride (Si3N4), one of the most versatile engineering ceramic materials, can be made to exhibit plasticity at room temperature. Their proof-of-concept experiment and simulation results offer a potential route to realizing the dream of flexible ceramics."[3,4]
- They made a material that doesn't exist on Earth. That's only the start of the story. - "Two teams of scientists — one at Northeastern University in Boston; the other at the University of Cambridge in the UK — recently announced that they managed to manufacture, in a lab, a material that does not exist naturally on Earth. It — until now — has only been found in meteorites."
- Going back to basics yields a printable, transparent plastic that's highly conductive - "The resulting process could yield new kinds of flexible, transparent electronic devices—things like wearable biosensors, organic photovoltaic cells, and virtual or augmented reality displays and glasses."
- AI searches for new materials - "[M]aterials scientists and chemists are using machine learning and other tools to perform computations and simulations that can point them to candidates for new catalysts, polymers and other materials with unique properties."
We spoke to Laura Henderson Lewis, one of the professors on the Northeastern team, and she told us the material found in the meteorites is a combination of two base metals, nickel and iron, which were cooled over millions of years as meteoroids and asteroids tumbled through space. That process created a unique compound with a particular set of characteristics that make it ideal for use in the high-end permanent magnets that are an essential component of a vast range of advanced machines, from electric vehicles to space shuttle turbines.
The compound is called tetrataenite, and the fact that scientists have found a way to make it in a lab is a huge deal. If synthetic tetrataenite works in industrial applications, it could make green energy technologies significantly cheaper. It could also roil the market in rare earths, currently dominated by China, and create a seismic shift in the industrial balance between China and the West.
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