News - Scientists make breakthrough in creating ‘space magnet’

University of Cambridge researchers are working to recreate an outer space magnet on Earth, TCD reported. The researchers call tetrataenite a “cosmic magnet” that could revolutionize how we power cleaner technology. Magnets are needed components for EVs, wind turbines, and other innovations that experts consider crucial to reducing air pollution. Most of that tech currently uses magnets made with what are commonly called “rare earth elements.” They are scattered throughout the planet’s crust and are difficult to gather, requiring invasive and expensive mining. China controls about 58% of rare earth mining and 92% of magnet production, as of 2020, according to a U.S. Energy Department guide to achieving “American Leadership” in the sector. The U.S. contributes about 15% of the global supply, according to the government. Tetrataenite, an iron-nickel alloy, could be the magic magnet that solves some of these problems. But, the material is formed during the course of millions of years on meteorites. Instead, scientists from Cambridge are trying to recreate tetrataenite in the lab. Adding phosphorus to the mix is key to the latest breakthrough, according to a university report. Phosphorus, a common element, works with iron and nickel to create the right atomic movement to form a tetrataenite magnet without taking millions of years in outer space. The researchers said they successfully recreated tetrataenite in a few seconds by pouring the mixture into a mold, according to Cambridge. The phosphorus breakthrough eliminates mass production problems with past work to recreate the material, including a 1960s project using “neutron irradiation.” The experts are now testing the material to see how it works as a high-performance magnet needed for most of the digital age tech that fills our lives.