Nationalgeographic.co.id—To Scientist The University of Chicago has found a new way to conduct heat at the microscopic level. This invention is important in engineering because it is a solution for managing heat Electronic And can improve their skills. The findings have been published in a valuable journal Nature Recently.
In engineering, transferring heat to the desired location is the biggest challenge. For example adding it to some electronic devices to remove it from car engines and refrigerators that experience high heat.
As we all know, every action generates heat because energy comes out of everything we do. But overheating can damage the battery and other electronic components. If you can’t get rid of the heat, that’s a problem.
In this study, the researchers stack layers of very thin crystal sheets on top of each other, but each layer is rotated slightly, creating objects with atoms aligned in one direction.
The study’s first author, Shi N Kim, said UCicaago News In each crystal layer, we have more atoms sorted, but if you go to the neighboring layers you don’t know that the next layer is related to the previous layer. Atom is really falling in this direction
Kim, a graduate student at the Pritzker School of Molecular Engineering, said, “Imagine a semi-finished Rubik’s cube with all the layers rotating in random directions.
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The researchers rotated each layer of material slightly.
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The result is much better retention of heat and even transfer of it in different directions. Such capabilities are remarkable at the microscale and may have very useful applications in electronics and other technologies.
“The combination of excellent thermal conductivity in one direction and excellent insulation in the other direction does not exist in nature,” said Jiwong Park, a distinguished research professor of chemistry and molecular engineering at the University of Chicago.
“We hope this can open up new directions for creating new products.”
Scientists are looking for products with extraordinary properties, because they can unlock entirely new capabilities for devices such as electronics, sensors, medical technology, or solar cells. For example, the MRI machine was made possible by the discovery of a strange substance that can conduct electricity perfectly.
The park team is exploring ways to create very thin objects that are atoms of several atoms. In general, the materials used for devices contain more ordered atoms, which make it easier for electricity (and heat) to pass through the material. But scientists wonder what would happen if each successive layer rotated slightly as they stacked up.
They measured the results and found that microscopic walls made of this material were better at preventing heat from passing between the boxes. “The thermal conductivity is very low, very low as air, which is still one of the best insulators we know of,” said Park.
According to him, this is surprising, because it is very unusual to find this property in solids which are good conductors of heat. But the thing that was most interesting to the scientists was that when they measured the material’s ability to carry heat to the walls, they found that they could do so very easily.
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A new material that can convert and retain heat.
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That capability will open the door for engineers to test materials that are too heat sensitive for use in electronics.
Also, it can create extreme heat slopes where something is too hot on one side and too cold on the other. It is difficult to do that, especially on a small scale, so this invention may have many uses in technology.
“If you think about what effect window glass has on us, we can keep the temperature outside and inside the room separate. You can feel how effective this is,” said Park.
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