In the future, your smartphone might be made out of concrete, no seriously. A group of researchers working together from the US, Finland, Germany, and Japan who work in conjunction with the US Department of Energy have developed a method of turning cement into a glass-metal fusion.
The material is reportedly exceptionally good at conducting heat and electricity. The process discovered by the researchers can be used as a semiconductor inside electronics providing good connectivity, low energy loss in magnetic fields, improved resistance to corrosion compared to traditional metals, less brittleness than traditional glass, and fluidity making it easy to process and mold during construction.
Innovative Properties and Applications
The innovative properties of this cement-based material open up a plethora of applications beyond just smartphones. For instance, its excellent thermal conductivity could be leveraged in the development of more efficient heat sinks for electronic devices, potentially leading to longer-lasting and more reliable gadgets. Additionally, its superior electrical conductivity and resistance to corrosion make it an ideal candidate for use in harsh environments, such as underwater or in space, where traditional materials might fail.
Moreover, the material’s reduced brittleness compared to glass means it could be used in the construction of more durable screens and casings for electronic devices. This could significantly reduce the frequency of screen replacements and repairs, saving consumers money and reducing electronic waste. The fluidity of the material during processing also means it can be easily molded into complex shapes, allowing for more innovative and ergonomic designs in consumer electronics.
The Science Behind the Innovation
The researchers working on the project used a phenomenon called electron trapping, which is a condition occurring when free electrons and polycrystalline materials are trapped in cage-like structures that form around them. This phenomenon is crucial for the material’s ability to conduct electricity efficiently. The technique for creating the material involves suspending it in the air using an aerodynamic levitator. By levitating the hot liquid, which consists of a material called melted mayenite at a temperature of around 2000°C, the researchers prevent it from forming crystals, allowing it to cool into a glassy state that traps the electrons required for electronic conduction. The mayenite was heated using a carbon dioxide laser beam.
This method of using an aerodynamic levitator is particularly fascinating because it allows for the precise control of the material’s cooling process. By preventing the formation of crystals, the researchers ensure that the material retains its unique properties, making it suitable for use in advanced electronic applications. The use of a carbon dioxide laser beam to heat the mayenite is also noteworthy, as it provides a highly efficient and controlled means of reaching the necessary temperatures for the process.
The potential applications of this technology are vast. Beyond consumer electronics, this cement-based material could be used in the construction of more efficient and durable infrastructure, such as bridges and buildings, where its resistance to corrosion and excellent thermal properties would be highly beneficial. Additionally, its unique properties could lead to advancements in renewable energy technologies, such as more efficient solar panels and wind turbines.
Via The Atlantic
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