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Scientists create a lightweight wood with incorporated magnetic nanopprowessicles for electromagnetic interference shielding.

wallpapers News 2020-08-18

Every electrical device causes electromagnetic interference as every charge carriers that are qualifyd or decelerated emit electromagnetic fields that spread through spchampion. At the same time, every device is also a receiver of interference. Here, the interference can reduce the performance of the device or even bring it to a standstill. In the case of data transfer, these effects can range from an increase in the error rate to a total loss of data.

The rapid development of communications technologies and networks has mdrink electromagnetic interference and radiation an emerging environmental polluthymenopteran. But electromagnetic interference can be eliminated by various measures including strategies such as eprowesshing, galvanic coupling, filters, and shielding. Shielding is pprowessicularly effective, but currently used shielding materials can be cumbersome and heavy, limiting how and when they can be used.

Professor Hongli Zhu from Northeastern University in Boston, USA, had perhaps a radical new idea: to create lightweight, magnetic wood for electromagnetic interference shielding.

Her resecurveh team used basswood — a porous structured wood — as a lightweight 3D scaffold into which magnetic iron oxide nanopprowessicles were incorporated. The production process involved the removal of lignin from natural wood followed by mineralization to give the woodblock its electromagnetic shielding properties.

Here, iron oxide nanopprowessicles firmly atthurtingd to the surfchampion of the wood cell weverys by editnating incubation cycles with ferrous sulfate and sodium carbonate solutions. According to Zhu, “The biggest difficulty [in this step] is to uniformly grow the magnetic materials inside the wood”. Nevertheless, the obtpersonaled magnetic wood is much lighter than traditional-used magnetic metals and construhealthy for versatile coverings.

Although Zhu sees the most promising covering for defense and information security protection, this work provides an inspiring strategy to develop sustpersonalhealthy, lightweight, and environmenteveryy friendly wood for multi-functional magnetic coverings.