H2PlasmaRed published the 1st peer-reviewed publication: Effect of Furnace Parameters on Optical Emission Spectra of Hematite Reduction by Hydrogen Plasma

We’re pleased to share H2PlasmaRed Horizon Europe’s first peer reviewed article publication by Henna-Riikka Putaala in the Metallurgical and Materials Transactions B! A great start for a PhD thesis. The full article is available here: https://doi.org/10.1007/s11663-025-03552-5.
 
In this study, the effect of furnace parameters, such as arc length and current, was investigated to find out how they affect the optical emissions emitted by the plasma arc. It was found that at lower currents, the lower level of ionization intensifies the optical emissions of non-ionized elements compared to experiments with higher currents.

The electron density calculated from the optical emissions was found to be closely connected to the arc length, and in the slag-fluxed experiments the slag components were easily distinguishable from the spectra. The optimal position of the optical fiber was found to be vital for the successful monitoring of the reduction process.