| 简介 |
The invention relates to a method for producing mixed oxides and permanent magnetic particles, based on rare earths/transition metals in order to produce RETM-type magnetic materials. Said method includes preparing a mixture of precursors, introducing the precursor mixture into a reactor with a caloric energy supply, where a spray nozzle generates fine drops in the form of a spray or an aerosol, subjecting the fine drops that have formed to pyrolysis and combustion, and reducing the particles of mixed oxides formed and collected in the form of a homogeneous powder, obtaining permanent magnetic particles. Said method is simple and enables homogeneous and versatile compositions to be produced, especially for rare earth/transition metal (RETM) permanent magnets, where RE (rare earths) can be, for example, an element such as neodymium, praseodymium, dysprosium, or a combination thereof, among other possibilities, and TM (transition metals) can be, for example, iron, cobalt, nickel or a combination thereof. |
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