Descripción del proyecto
Un método pionero para los imanes permanentes
Los imanes permanentes (IP) son componentes esenciales en las tecnologías ecológicas de rápido crecimiento, como la electromovilidad. Por tanto, su producción va en aumento. En la actualidad, los IP de alto rendimiento se basan en materiales que contienen una cantidad significativa de cobalto y elementos de tierras raras (ETR). Basándose en el proyecto SPDTuM, respaldado por las subvenciones de inicio del Consejo Europeo de Investigación (CEI) y que desarrolló una nueva ruta de procesamiento para sintetizar imanes permanentes, el equipo del proyecto REFMAG, financiado por el CEI, se propone aplicar esta ruta al compuesto MnBi, una alternativa sin tierras raras a los imanes de NdFeB que se utilizan actualmente. Los imanes basados en MnBi serán especialmente adecuados para aplicaciones a altas temperaturas. Los novedosos imanes permanentes de MnBi se caracterizarán por métodos de última generación en términos de su microestructura y sus propiedades magnéticas.
Objetivo
Permanent magnets are essential components of an enormous amount of consumer and industrial products. Their production rises annually, especially due to their use in fast growing green technologies such as electric mobility. High performance magnets with a large energy product are usually based on the NdFeB material system. The major components are rare-earth elements, which are listed as critical materials. Novel permanent magnets use the concept of magnetic coupling effects. In course of the ERC Starting Grant SPDTuM we have developed a new processing route to synthesize permanent magnets based on this concept. The objective of this ERC PoC Grant is to use this processing route and apply it to the MnBi system, which represent a rare-earth free alternative to the currently used NdFeB magnets. As additional benefit, the magnetic α-MnBi phase exhibits an increasing coercivity with rising temperature. Thus, magnets based on MnBi will be especially well-suited for high temperature applications. We use high-pressure torsion, a severe plastic deformation method, for processing, which has the advantage that the key α-MnBi phase can be directly formed during processing. Coupled to a soft magnetic phase, a high performance permanent magnet with an excellent energy product will be obtained. So far, this type of magnet has only been successfully obtained in limited volumes (thin films, powders). With our processing route it is possible to synthesize magnets in dimensions with about 100000 times larger volume. The novel MnBi permanent magnets will be characterized with state-of-the-art methods in terms of their microstructure and magnetic properties. The up-scaling potential of the developed processes from laboratory to industrial conditions will be further critically evaluated. These activities will be complemented by patent protection to facilitate commercialization and outreach to potential industry partners for the introduction of our novel method and new collaborations.
Programa(s)
- HORIZON.1.1 - European Research Council (ERC) Main Programme
Régimen de financiación
HORIZON-ERC-POC - HORIZON ERC Proof of Concept GrantsInstitución de acogida
1010 Wien
Austria