Iron (III) oxide is one of the most common oxides. One of its modifications is epsilon iron oxide, an extremely rare and difficult form of iron oxide to obtain. It has many unique properties. The problem is that it is very difficult to obtain large quantities of it. The whole process takes up to 30 days. That is why it is not particularly in demand in industrial applications, for example, as a medium for magnetic recording of information.
Scientists from Moscow State University and Moscow Institute of Physics and Technology have tackled the problem. Researchers have created a method for the rapid synthesis of epsilon iron oxide. The new technology is thirty times faster than the existing ones.
In addition, the method of obtaining magnetic nanopowder allows you to increase the amount of the resulting product. The technique is easy to replicate, cheap, and easy to industrialize. By the way, the materials necessary for the synthesis – iron and silicon – are one of the most common elements on Earth, scientists say.
Epsilon Iron Oxide is highly resistant to external magnetic fields. It also absorbs electromagnetic radiation in the subterahertz range. This adds value to sixth generation wireless technologies.