Foreign media: Researchers develop sustainable 3D-printed super magnets

Traditional manufacturing methods for permanent magnets used in many different electrical applications, from sensors to electric motors, have been challenged by the increasing miniaturization and stringent requirements of electronic devices. Tu Graz researchers joined forces with the University of Vienna and the University of Alexandria, Friedrich-Alexander University, according tomedia. Erlangen-N?rnberg (FAU) recently created a super magnet using laser 3D printing technology.

Media: Researchers develop sustainable 3D-printed super magnets

According to the introduction, the laser 3D printing technology to produce super magnet shape more flexible, according to the specific application needs to produce a specific magnet, specifically, the method mainly uses the powder form of magnetic material to layer it and melt it to bond particles, so as to obtain pure metal components. Researchers have now developed the process to a phase of printing out a relatively high density magnet while still trying to control its microstructure.

The combination of these two functions allows materials to be used efficiently because it means we can precisely adjust the magnetic energy according to the application, explains Siegfried Arneitz and Mateusz Skalon of the Institute for Materials Science Research, Connectionand and Forming at the University of Graz.

It is understood that the team’s initial focus is on the production of the magnets of the molybdenum (ferrite boron). Due to its chemical properties, rare earth metal niobium is used as the basis for many powerful permanent magnets, which are key components in many important applications, including computers and smartphones. The researchers have published a detailed description of their work in the journal Materials. But in other applications, such as electric brakes, electromagnetic switches, and some motor systems, the strength of the NdFeB magnet is unnecessary.

As a result, the Institute of Materials Science (Connecting and Forming) of the University of Graz Technology is studying 3D printing of Fe-Co (iron and cobalt) magnets, which are considered promising alternatives to NdFeB magnets in two ways, and the exploitation of rare earth metals is resource-intensive, and the recovery of such metals is still in its infancy. Rare earth metals also lose their magnetism at high temperatures, while special Fe-Co alloys maintain their magnetism at temperatures ranging from 200 to 400 degrees C, and exhibit good temperature stability.

Article Compilation Source: Newsbeats