The aim of the project was the search for new inter-metallic compounds with improved magnetic properties, the development of new production procedure for permanent magnetic materials and the investigation of the interaction of the magnetic domains with the structure. A magneto-optical magnetometer for the measurement of the coercitive field strength of the surface layer of magnets was developed. This measuring procedure allows a reliable estimation of the magnetic properties of the surface of magnets, which is important for the coating of magnets for corrosion protection. (MZ)SIGLEAvailable from TIB Hannover: F93B135+a / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekBundesministerium fuer Forschung und Technologie (BMFT), Bonn (Germany)DEGerman