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Science of Sintering 2007, vol. 39, iss. 2, pp. 193-198
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Methods of characterization of multiphase Nd-Fe-B melt-spun alloys
aInstitute of Chemistry, Technology and Metallurgy - IHTM bUniversity of Kragujevac, Technical Faculty
e-mail: cmm@tmf.bg.ac.yu
AbstractNanocomposite permanent magnetic materials based on Nd-Fe-B alloys with a low Nd content are a new type of permanent magnetic material. The microstructure of these nanocomposite permanent magnets is composed of a mixture of magnetically soft and hard phases providing the so called exchange coupling effect. Beside the optimization process parameters, methods of characterization have a very important role in the design of an optimal magnetic matrix of multiphase melt-spun Nd-Fe-B alloys. Different methods and techniques of characterization were used for observation and study of the microstructure evolution during crystallization. A summary results of measurements using different methods of characterization are presented to enable a better insight into relations between the microstructure and magnetic properties of the investigated melt-spun Nd-Fe-B alloys.
Keywords
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